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Published in last 1 year |  In last 2 years |  In last 3 years |  All Please wait a minute... For Selected: Download Citations EndNote Ris BibTeX Toggle Thumbnails Select The Occurrence Characteristics of Rice Diseases and Insect Pests and the Integration of Green Control Technology in China from 2013 to 2022 ZHUO Fuyan, CHEN Xuexin, XIA Yuxian, FU Qiang, WANG Su, XU Hongxing, HU Fei, ZHANG Jie Chinese Journal of Biological Control    2024, 40 (5): 1207-1213.   DOI: 10.16409/j.cnki.2095-039x.2023.11.011 Abstract （638）      PDF（pc） （416KB）（679）       Knowledge map    Save Rice is the largest grain crop in China, and the control of rice diseases and insect pests are directly related to stable and increasing food production. Based on the analyses of the statistical data of plant protection in China from 2013 to 2022, this paper has summarized and reviewed the occurrence types, characteristics, areas and actual yield loss of rice diseases and insect pests and sorted out the control overview of rice diseases and insect pests, such as the control area, recovery yield loss, and the application of main control measures. In particular, the application area and development trend of green control technologies, such as ecological regulation, natural enemy’s protection and utilization are summarized. Meanwhile, This paper has analyzed and discussed the achievements of green control of rice diseases and insect pests from the perspectives of technology coverage and integrated content, put forward some suggestions for the next step of green control, aiming at providing references for the safe production of rice in China in the future. Reference | Related Articles | Metrics | Comments（0） Select Advances in Biological Control of Tuta absoluta (Meyrick) Based on Predatory Natural Enemy Resources LUO Taotao, YAN Shuyan, CAO Mengyu, ZHANG Jinghang, ZHANG Guifen, WAN Fanghao, ZHANG Ya, LI Tao, LIU Shuangqing, ZHANG Yibo Chinese Journal of Biological Control    2024, 40 (4): 727-738.   DOI: 10.16409/j.cnki.2095-039x.2024.02.039 Abstract （565）      PDF（pc） （432KB）（5579）       Knowledge map    Save Tuta absoluta (Meyrick) is a major invasive alien species worldwide, which mainly damages tomato crops by mining leaves and fruits. Since its invasion in Yili, Xinjiang in 2017, it has spread to many provinces (municipalities and autonomous regions) in China, with outbreaks in some places, seriously threatening the healthy production of China's tomato industry. At present, biological control based on predatory natural enemies is one of the main measures for integrated management of T. absoluta. So far, few review papers have been published on the predatory natural enemy resources of tomato leaf miner. Therefore, this paper systematically sorted out the species of predatory natural enemies of T. absoluta worldwide, summarized the predatory ability of predatory natural enemies of tomato leaf miner, the life parameters of predatory natural enemies of T. absoluta, and the effects of chemical pesticides on the prevention and control of T. absoluta by predatory natural enemies. The existing problems and development direction of T. absoluta control by predatory natural enemies were analyzed in order to provide reference for the biological control of T. absoluta in China. Reference | Related Articles | Metrics | Comments（0） Select The Characteristic of Plant Diseases and Insect Pests in Greenhouse Horticulture and Its Green Control Strategy of China WU Shengyong, ZHANG Mengdi, XU Jin, WANG Endong, CUI Li, LEI Zhongren, SHI Xiaobin, XIE Xuewen, WANG Shaoli, WANG Su, WEI Shujun, MA Zhongzheng, HE Limei, GAO Yulin Chinese Journal of Biological Control    2024, 40 (5): 1169-1180.   DOI: 10.16409/j.cnki.2095-039x.2022.01.022 Abstract （532）      PDF（pc） （476KB）（2043）       Knowledge map    Save Greenhouse horticultures has been rapid development in China, playing an important role in promotion agricultural modernization and rural revitalization. Based on the current trajectory of the horticulture industry in China, we first summarized the characteristic of plant diseases and insect pests and its control strategies, including the agricultural control, physical control, biological control, ecological regulation, biotechnology and science-based application of chemical pesticides. Finally, we put provide suggestions on the control of horticultural diseases and insect pests under protected conditions, providing baseline references for the sustainable development of horticultural industry. Reference | Related Articles | Metrics | Comments（0） Select Research Progress on Green and Sustainable Management Technologies for Spodoptera frugiperda WEI Lei, NIE Ying, LI Yongjun Chinese Journal of Biological Control    2025, 41 (1): 207-219.   DOI: 10.16409/j.cnki.2095-039x.2024.07.004 Abstract （489）      PDF（pc） （530KB）（3868）       Knowledge map    Save The fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), is a major worldwide disastrous pest. Since its invasion into China in 2019, the implementation of emergency chemical control measures yielded positive outcomes. However, the occurrence of S. frugiperda in China has now become common and year-round, necessitating a long-term approach for its management. Throughout the history of global pest control, reliance on chemical agents has invariably led to the development of pest resistance. Incidences of pesticide resistance in S. frugiperda have been reported in certain regions of China. Therefore, to mitigate the adverse effects of chemical pesticides and the risk of pesticide resistance, China's management strategies must transition towards green, efficient, precise, and sustainable approaches. On the basis of the regional control strategy and unified management strategy, the Ministry of Agriculture and Rural Affairs has advocated a management framework emphasizing biological control as the focal point, ecological and agricultural control as the foundation, and chemical control as the last resort. This article elaborates on recent technological advancements both domestically and internationally in biological control, ecological and agricultural control methods, with an emphasis on biological control. Additionally, it proposes future research directions and ideas to overcome existing challenges, aiming to provide guidance for the development of green management technologies in China. Reference | Related Articles | Metrics | Comments（0） Select Screening and Identification of Antagonistic Fungi against Root Rot of Tea Plants and Their Effect on Disease Control and Plant Growth Promotion DENG Yulian, TAN Lin, JI Jinjun, LI Guihua, HUANG Hong, SHI Zihan, HU Qiulong Chinese Journal of Biological Control    2024, 40 (4): 914-926.   DOI: 10.16409/j.cnki.2095-039x.2024.02.036 Abstract （469）      PDF（pc） （3334KB）（1232）       Knowledge map    Save In order to obtain the antagonistic fungi with good antagonistic effect on Fusarium cugenangense, fungal strains were isolated from the rhizosphere soil of tea plants with root rot infection by dilution coating plate method, and a strain with high antagonistic activity was screened by plate confrontation method and identified based on morphological observation and ITS sequence analysis methods. The disease prevention and growth promotion property, inhibition spectrum, and inhibition activity of volatile and non-volatile metabolites were determined. The inhibition ability of fermentation broth of antagonistic strain against F. cugenangense was evaluated. The results showed that a strain CA5 with high inhibitory effect on tea root rot pathogen was obtained and identified as Talaromyces pinophilus. Its plate inhibition rate against F. cugenangense was 77.39%. The strain CA5 had the ability to produce cellulase, β-1,3 glucanase and chitinase, and also had inorganic phosphorus and organophosphate solubilities, potassium solubility and nitrogen fixation capacities, as well as the ability to produce siderophore, IAA and ammonia. Inhibition rates of strain CA5 on other 8 plant pathogens were all greater than 60%. Inhibition rates of volatile and non-volatile metabolites on mycelial growth of tea root rot pathogen were 14.90% and 44.33%, respectively. Inhibition rates of fermentation broth, suspension and sterile fermentation filtrate on mycelial growth of tea root rot pathogen were 73.42%, 67.32% and 25.75%, respectively. Pot experiment showed that the control efficacy against tea root rot disease was 56.11%, and the strain had a promoting effect on the growth of tea seedlings. In conclusion, the strain CA5 has great application potential in the prevention and control of tea root rot. Reference | Related Articles | Metrics | Comments（0） Select Development of Microbial Seed Coating Agents and Its Control Effect on Maize Stalk Rot GUO Ning, MA Hongxia, ZHANG Haijian, SHI Jie, LIU Shusen, SUN Hua, ZHENG Xiaojuan Chinese Journal of Biological Control    2024, 40 (5): 1054-1065.   DOI: 10.16409/j.cnki.2095-039x.2024.02.046 Abstract （464）      PDF（pc） （3119KB）（567）       Knowledge map    Save In this study, Trichoderma strains with good control effects on maize stalk rot were screened by plate confrontation test, maize seed germination characteristics analysis and greenhouse pot experiments. The type, dosage and best combination of auxiliaries were determined by physicochemical properties, biocompatibility, and orthogonal tests. Control effect of the developed biological seed coating agents on maize stalk rot was verified. The results showed that 17 of 109 Trichoderma strains exhibited antagonistic activity against Fusarium graminearum with an average inhibitory rate of over 70%, among which 6 strains had the best control efficacy ranging from 80.33% to 85.64% on maize stalk rot at seedling stage. The active ingredients of two biological seed coating agents with T. asperellum strain Tr34 and T. afroharzianum strain Tr35 were developed, followed as 106 chlamydospores/mL, 0.2% xanthan gum, 2% sodium lignonate, 5% beinon film forming agent 1, and 1% 100 mg/mL streptomycin. When the ratios were 1:200 and 1:100, the biological seed coating agents Tr 34 and Tr 35 had the best control effect on maize stalk rot, with the efficacies of 81.14% and 83.18%, respectively. The biological seed coating agents Tr 34 and Tr 35 could effectively reduce the incidence of maize stalk rot, which lays a foundation for further field application. Reference | Related Articles | Metrics | Comments（0） Select Intraspecific Host Discrimination and Superparasitism in Telenomus remus (Nixon), an Egg Parasitoid of Spodoptera frugiperda (J. E. Smith) XUE Taoran, PAN Jing, LIU Lihong, XU Teng, HUANG Jian, HE Yuxian, WANG Zhuhong Chinese Journal of Biological Control    2024, 40 (1): 1-.   DOI: 10.16409/j.cnki.2095-039x.2023.01.026 Abstract （460）      PDF（pc） （471KB）（1964）       Knowledge map    Save Telenomus remus (Nixon) is an important egg parasitoid of Spodoptera frugiperda (J. E. Smith), a major invasive pest. In order to clarify the intraspecific host discrimination and the superparasitism of T. remus, the self-recognition (same individual) and conspecific-recognition (different individual) ability to recognize the hosts eggs parasitized at different time intervals were determined, and the superparasitism rate of single and multi-female T. remus under different host density were also investigated. The results showed no superparasitism in T. remus , either self-recognition or conspecific-recognition. After a single female T. remus parasitizing for 24 h at different parasitoid-egg ratios, the percentage of 1st instar larvae of T. remus in S. frugiperda eggs was less than 100%, and only one was found in each host egg. With multi-female T. remus and sufficient hosts, and when parasitoid-egg ratios were 1:100, 2:200, 4:400, 6:600 and 8:800, the percentage of unparasitized host eggs were 52.8%, 67.2%, 63.2%, 53.6% and 51.2%, respectively, and the percentage of host eggs with one 1st instar larva were 47.2%, 32.8%, 36.8%,46.4% and 48.8%, respectively. With multi-female T. remus and insufficient hosts, and when parasitoid-egg ratios were 2:20, 3:21, 4:20, 7:21 and 20:20, the parasitism rates of T. remus were 60.0%, 83.0%, 95.0%, 94.0% and 96.0%, respectively, and the superparasitism rates were 11.0%, 38.0%, 64.0%, 73.0% and 92.0%, respectively, the average number of 1st instar larva of T. remus in a single host egg were 0.4, 0.6, 1.1, 1.3 and 2.1, respectively, and the maximum number were 3.0, 4.0, 5.0, 6.0 and 12.0, respectively. The results show that T. remus has the ability of self and conspecific-recognition, the superparasitism of a single female T. remus does not depend on host density. When the host is sufficient, the superparasitism of multi-female T. remus does not occur, but when the host is insufficient, the parasitism and superparasitism rate, the average and maximum number of 1st instar larvae in a single host egg increase with the increase of parasitoid-egg ratios. The parasitoid-egg ratio of 4:20 is suitable for propagation of the wasp because it produces high parasitism rate, low superparasitism rate, and low internal competition. Related Articles | Metrics | Comments（0） Select Virulence of Entomopathogenic Nematodes to Holotrichia parallela Larvae ZHANG Cailing, WANG Zhimin, WANG Siyu, Ibrahim Osman, LI Kebin, ZHANG Shuai, CAO Yazhong, WANG Senshan, YIN Jiao Chinese Journal of Biological Control    2024, 40 (5): 1009-1014.   DOI: 10.16409/j.cnki.2095-039x.2022.03.025 Abstract （417）      PDF（pc） （361KB）（1272）       Knowledge map    Save The pathogenicity of seven entomopathogenic nematodes (EPNs) against the late 1st instar larvae of Holotrichia parallela was tested in laboratory to screen the effective strains of entomopathogenic nematodes for the H. parallela control, and the most suitable environmental conditions of strains were identified. Results showed that pathogenicity of seven EPNS strains were different under laboratory conditions, the Heterorhabditis bacteriophora (D26-6) had the strongest pathogenicity to the larvae of H. parallela. In addition, temperature, soil moisture and dosage of EPNs all take effects on the pathogenicity. The optimum temperature and soil moisture for H. bacteriophora (D26-6) infection were 25 ℃ and 18% respectively, when the ratio of H. parallela larvae to D26-6 nematodes was 1:100, the mortality of H. parallela larvae can reach 100% after 11 days. Reference | Related Articles | Metrics | Comments（0） Select Ontogeny of Cotesia ruficrus, a Parasitoid of Spodoptera frugiperda HE Pengyang, LI Xian, LIU Tongxian, ZHANG Shize Chinese Journal of Biological Control    2023, 39 (6): 1488-1494.   DOI: 10.16409/j.cnki.2095-039x.2023.01.003 Abstract （417）      PDF（pc） （3084KB）（1438）       Knowledge map    Save The fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), is a major invasive pest worldwide. Since its invasion into China in 2019, S. frugiperda has posed a serious threat to China’s agricultural production and food security. It is of great importance to excavate, screen and evaluate domestic dominant natural enemy resources for the biological control of this insect pest. In 2020, the larvae of S. frugiperda parasitized by Cotesia ruficrus were first collected in the main corn producing areas of Shaanxi Province, and this is also the first report in China that the native parasitoid C. ruficrus parasitizes S. frugiperda larvae. In this paper, the ontogenetic history and developmental time of C. ruficrus were reported in detail to aid the development of biological control program of S. frugiperda by utilizing C. ruficrus in the future. The developmental stages of C. ruficrus include egg, larva, pupa and adult. The egg has a stalk and hatches 3 days after oviposition. The larva has three instars; the 1st instar larva has keratinized jaws; the 2nd instar larva has developed tail sacs; and the 3rd instar larva has degenerated tail sacs. The 3rd instar larva bits through body wall of S. frugiperda larva and climbs out from S. frugiperda larva, and cocoons and pupates nearby. The pupa emerges 3 days after pupation. The mean developmental durations of egg, first instar, second instar, third instar, pupa, and egg-adult of C. ruficrus are 3.1 d, 2.1 d, 3.2 d, 1.0 d, 3.0 d, and 12.4 d, respectively. Reference | Related Articles | Metrics | Comments（0） Select Screening of Bacillus velezensis HMB28023 for Controlling Grape Gray Mold and Identification of Its Antifungal Active Compounds ZHANG Xiaoyun, WANG Xuemei, CONG Rong, CHEN Xiuye, LU Xiuyun, LI Shezeng, GUO Qinggang, MA Ping Chinese Journal of Biological Control    2025, 41 (1): 122-131.   DOI: 10.16409/j.cnki.2095-039x.2025.02.005 Abstract （408）      PDF（pc） （1041KB）（857）       Knowledge map    Save Grape gray mold caused by Botrytis cinerea which significantly reduces the yield and quality of grape, but there is a lack of safe and effective microbial fungicides for its control. In this study, the antagonistic activity of 27 bacteria with high antagonistic activity against B. cinerea derived from tomato, was determined by the confrontation culture method. It was found that the inhibition zone and inhibition rate of the same bacterial strain against B. cinerea derived from tomato and grape exhibited variable changes. A bacterial strain HMB28023, was further obtained based on detached leaves method, potting test and field test, which field control efficacy on grape gray mold reached 74.3%. Strain HMB28023 was identified as Bacillus velezensis through morphological characteristics, 16S rDNA as well as phylogenetic tree constructed by using multiple gene sequences of gyrA, gyrB, rpoB and rpoC. The results of detached leaves test indicated that the fermentation broth, cell free supernatant and bacterial suspension of strain HMB28023 all exhibited high biocontrol efficacy against grape gray mold, reaching 81.9%, 75.1% and 64.8%, respectively. The lipopeptide produced by strain HMB28023 was isolated through fast protein liquid chromatography (FPLC) and identified by UPLC-Triple TOF-MS/MS. The results showed that the lipopeptide comprised iturin A (C14—C15), fengycin (fengycin A (C14—C17) and fengycin B (C16—C17)), and surfactin (C12—C16). Both iturin A and fengycin showed strong inhibitory activities against the growth of B. cinerea, and also caused abnormal hyphal growth in vitro. Reference | Related Articles | Metrics | Comments（0） Select Screening of Antagonistic Isolate Bacillus velezensis Bv1-4 and Its Control Effect against Root Rot Disease on Salvia miltiorrhiza WANG Fei, YANG Jin, LI Shaojian, LI Xuemeng, WEN Yi, ZHAO Ying, QIN Yanhong, GAO Suxia, LIU Yuxia, LU Chuantao Chinese Journal of Biological Control    2023, 39 (6): 1398-1407.   DOI: 10.16409/j.cnki.2095-039x.2023.02.063 Abstract （398）      PDF（pc） （1978KB）（1261）       Knowledge map    Save Root rot of Salvia miltiorrhiza is a common root disease caused by Fusarium spp., which has become one of the primary diseases affecting the production of S. miltiorrhiza. In order to screen effective biocontrol bacteria against root rot disease of S. miltiorrhiza, a biocontrol bacteria Bv1-4 with significant antagonism was isolated from the rhizosphere soil of healthy S. miltiorrhiza by the plate confrontation test. Based on morphological, physiological and biochemical characteristics, and sequence analysis, isolate Bv1-4 was identified as Bacillus velezensis. The inhibition rates of Bv1-4 against root rot of S. miltiorrhiza were 65.54%, 68.28%, and 66.87% for F. proliferatum, F. solani, and F. oxysporium, respectively. Further inhibition spectrum tests showed that Bv1-4 had a broad range of antifungal activity against various plant pathogenic fungi, such as Macrophomina phaseoli, Sclerotium rolfsii, Altrnaria tenuissima, and others. The results of the potted experiment proved that the fresh weight of above- and below-ground parts of S. miltiorrhiza after inoculation with Bv1-4 was significantly increased compared with the control group, and the increase rate was 70.97% and 70.37%, respectively; the control effect could reach more than 80% after mixed inoculation with Bv1-4 and three pathogens of S. miltiorrhiza root rot. In conclusion, Bv1-4 has good biocontrol characteristics and has good application potential in the biocontrol of plant diseases. Reference | Related Articles | Metrics | Comments（0） Select Isolation and Identification of Burkholderia cenocepacia YM12 and Its Control Effect on Cucumber Soft Rot Disease WEI Xinchen, WANG Qiao, SHI Bin, XIE Xuewen, SHI Yanxia, CHAI Ali, LI Baoju, LI Lei Chinese Journal of Biological Control    2024, 40 (5): 1088-1098.   DOI: 10.16409/j.cnki.2095-039x.2024.02.059 Abstract （398）      PDF（pc） （3849KB）（1086）       Knowledge map    Save Soft rot of cucumber is a bacterial disease caused by Pectobacterium brasiliense. The disease is serious and difficult to control. In order to screen biocontrol microorganisms with high antibacterial effect, a strain YM12 with significant inhibitory effect on P. brasiliense was isolated from cucumber rhizosphere soil. Through morphological observation, physiological and biochemical determination and multi-gene phylogenetic tree analysis, the strain was identified as Burkholderia cenocepacia. Analysis of antibiotic synthesis-related genes showed that strain YM12 might also produce Pyrrolnitrin and Pyhluteorin. Analysis of biocontrol traits characteristics confirmed that YM12 had the ability to produce phosphatase protease and pyoverdine. The strain had antagonistic effects on 5 pathogenic bacteria and 3 pathogenic fungi by antimicrobial spectrum analysis. Pot experiment showed that strain YM12 had obvious control effect on cucumber soft rot, with the efficacy of 62.84%.In summary, strain YM12 is the first reported B. cenocepacia with biocontrol effect on bacterial soft rot, which has high biocontrol research value and development and application potential. Reference | Related Articles | Metrics | Comments（0） Select Identification of Bacteria strain Sneb2010 and Its Control Effect on Melon Fusarium Wilt WU Ji, ZHU Xiaofeng, WANG Yuanyuan, LIU Xiaoyu, ZHAO Di, YANG Ning, DUAN Yuxi, FAN Haiyan, CHEN Lijie Chinese Journal of Biological Control    2024, 40 (6): 1331-1346.   DOI: 10.16409/j.cnki.2095-039x.2024.02.063 Abstract （397）      PDF（pc） （5504KB）（1064）       Knowledge map    Save Melon Fusarium wilt is a serious soil-borne disease caused by Fusarium oxyporum f. sp. melonis. In this study, the bacteria strain Sneb2010 with significant inhibitory effect on F. oxyporum f. sp. melonis was selected from 688 strains of bacteria by the dual culture technique, and the inhibition rate was 78.45%. The bacterium Sneb2010 was identified as Bacillus velezensis by morphological, physiological and biochemical characteristics combined with 16S rDNA and gyrA sequence analysis. The mycelium growth and spore germination of F. oxyporum f. sp. melonis were significantly inhibited by strain Sneb2010. After Sneb2010 treatment, the mycelia of F. oxyporum f. sp. melonis in the inhibited area showed abnormal phenomena, such as wizened, wrinkled, irregular protrusion and fracture. Strain Sneb2010 could promote the germination of melon seeds and the growth of seedlins. It was found that the strain Sneb2010 could produce protease and had the ability of biofilm forming. In addition, strain Sneb2010 showed strong inhibitory effects on a variety of pathogenic fungi. The results of pot experiment showed that, the control effect of Sneb2010 on melon Fusarium wilt was 64.29%, the number of pathogens decreased by 47%. In conclusion, B. velezensis Sneb2010 could effectively control melon Fusarium wilt, and provide a new potential biocontrol resource for the biological control of melon Fusarium wilt. Reference | Related Articles | Metrics | Comments（0） Select Screening, Identification and Control Efficacy Study of a Streptomyces Strain Antagonistic to Common Bacterial Blight of Beans YUAN Xinyu, SHAO Jiazhu, SONG Zhen, LIAO Xinlin, JIANG Donghua Chinese Journal of Biological Control    2023, 39 (6): 1408-1417.   DOI: 10.16409/j.cnki.2095-039x.2023.02.060 Abstract （370）      PDF（pc） （3689KB）（2001）       Knowledge map    Save In order to find potential biocontrol strains, 123 strains of actinomycetes were isolated and screened from soil by preliminary co-culture screening and Oxford cup re-screening. Ultimately, the strain Sa-4 was obtained, which had the strongest inhibitory ability against the pathogen of common bacterial blight of beans, Xanthomonas axonopodis pv. phaseoli (Xap). The antibacterial ring diameter of its fermentation broth was (31.62±3.23) mm. Based on microscopic observation, physiological and biochemical characteristics determination combined with 16S rDNA sequence analysis, the strain Sa-4 was identified as Streptomyces avidinii. The results of antibacterial spectrum determination showed that the fermentation broth of strain Sa-4 had strong antagonistic effects on various plant pathogens. The results of stability test showed that the fermentation broth of strain Sa-4 had good light stability and thermal stability. The results of antibacterial mechanism study showed that the fermentation broth of strain Sa-4 had no significant effect on the genomic DNA of Xap but had a certain influence on the protein synthesis of Xap. Fourier-transform infrared spectroscopy showed that the fermentation broth of strain Sa-4 would cause changes in the substances on the surface of Xap cell membrane, while results of electron microscopy showed that Xap cells were shrinked and depressed. The relative control efficacy of strain Sa-4 fermentation broth against common bacterial blight of beans could reach 68.69% by pot experiment. The results of this study provided basic reference data for the biocontrol products development of Streptomyces avidinii strain Sa-4 in common bacterial blight of beans. Reference | Related Articles | Metrics | Comments（0） Select Predatory Function of Hippodamia variegata (Goeze) to Tuta absoluta PATIMA Wumuerhan, MA Zhao, ABULIZI Tayier, WANG Sijia, WANG Huiqing, FU Wenjun, MA Deying Chinese Journal of Biological Control    2024, 40 (4): 787-792.   DOI: 10.16409/j.cnki.2095-039x.2024.05.003 Abstract （369）      PDF（pc） （387KB）（1047）       Knowledge map    Save The control potential of Xinjiang’s dominant predatory natural enemy, the adult Hippodamia variegata (Goeze), on Tuta absoluta was assessed by investigating the predatory functional responses to the 1st, 2nd, and 3rd instar larvae of T. absoluta. The results showed that the daily predation amount of H.variegata adults on the 1st, 2nd and 3rd instar larvae of T. absoluta were 66.33, 60.00 and 40.33, respectively, showing a decreasing trend with the increase of larval instar. The predation functional response of H.variegata adults to the 1st, 2nd and 3rd instar larvae of T. absoluta conformed to the Holling II disc equation, with theoretical maximum predation amounts of 454.55, 161.29 and 81.97, respectively. The search effect of H.variegata adults on T. absoluta decreased with the increase of density and instar of T. absoluta larvae. The maximum search effects of H.variegata on the 1st, 2nd and 3rd instar larvae of T. absoluta were 0.7376, 0.7107 and 0.5303, respectively. The results show that H.variegata has good predation ability on the 1st, 2nd and 3rd instar larvae of T. absoluta, and can keep the larvae of T. absoluta in check to a certain extent. Therefore, H.variegata can be further developed and utilized as a biological control agent for T. absoluta. Reference | Related Articles | Metrics | Comments（0） Select Insecticidal Activity of Extracts from 77 Species of Plants YANG Xuetao, WANG Xiuping, PENG Fei, CHENG Caihong, WU Shengyong, XIE Haicui, YANG Yuedong Chinese Journal of Biological Control    2024, 40 (5): 987-999.   DOI: 10.16409/j.cnki.2095-039x.2023.11.014 Abstract （363）      PDF（pc） （451KB）（1863）       Knowledge map    Save In order to evaluate the insecticidal activity of 77 species of plants belonging to 39 families, leaf disc spray method, immersion method and spray method were used to determine the insecticidal activity of plant ethanol extracts against Tetranychus urticae, Frankliniella occidentalis (Pergande) and Sitobion avenae (Fabricius), and further determine the efficacy of plants with better insecticidal activity against T. urticae, F. occidentalis and S. avenae. The results showed that Atropa belladonna L., Sphagneticola calendulacea, Hypecoum erectum L., Smilaz china L., Hippophae rhamnoides L., Dianthus chinensisL., Campsis grandiflora and Eupatorium japonicum extracts had high toxic on T. cinnabarinus, with the corrected mortality of more than 70% after 72 h; and the LC50 value was 254, 297, 413, 424, 428, 553, 663, 725 mg/mL, respectively. A. belladonna L. and S. calendulacea extracts had high toxic on F. occidentalis, with the corrected mortality of more than 80% after 72 h; and the LC50 value was 272, 306 mg/mL, respectively. S. china, H. erectum, H. rhamnoides, Incarvillea sinensis Lam., C. grandiflora and E. japonicum extracts had high toxic on F. occidentalis, with the corrected mortality of 70%—80% after 72 h; and the LC50 value was 446, 485, 523, 563, 710, 712 mg/mL, respectively. Reynoutria japonica Houtt.,A. belladonna, Rubus crataegifolius Bge, Kochia scoparia and Stellera chamaejasme L. extracts had high toxic on S. avenae, with the corrected mortality of more than 70% after 72 h; and the LC50 value was 281, 336, 540, 657, 730 mg/mL, respectively. Plants such as A. belladonna, R. japonica, S. calendulacea and S. china have high corrected mortality rates against different tested insects, demonstrating potential insecticidal activity, which is worthy of further study. Reference | Related Articles | Metrics | Comments（0） Select Effects of Host Plant and Temperature on the Development and Reproduction of Tetranychus truncatus Ehara Tuerxun·Ahemaiti, LIU Shuai, Aerziguli·Rouzi, WANG Bing, HA Ziyi, JIA Zunzun, DING Xinhua, FU Kaiyun, LI Kemei, GUO Wenchao Chinese Journal of Biological Control    2024, 40 (6): 1228-1236.   DOI: 10.16409/j.cnki.2095-039x.2024.07.005 Abstract （353）      PDF（pc） （475KB）（611）       Knowledge map    Save Tetranychus truncatus Ehara has a wide distribution, heterogeneous diet, fast reproduction rate, strong drug resistance and short-term outbreaks, making it an important pest mite that is seriously harmful and difficult to control, and the mite can also be used as a high-quality natural feed for some natural enemies insects. In this study, the effects of different host plants and temperature on the growth, development and reproduction of T. truncatus were studied. The results showed that the generation development of T. truncatus could be completed successfully at 25 ℃, 28 ℃, 31 ℃ and 34 ℃. At 28 ℃, the population doubling time (0.15) and Innate capacity for incease (1.73) were the shortest, the Net reproductive rate (80.26) and the Finite rate of increase (5.64) were higher than the other three temperatures, and the spawning period of P. sericulata was basically consistent with that at 25 ℃. But the spawning yield was higher than 25 ℃ continuously. After feeding on 8 host plants, there were significant differences in the life span of each mite state and the early oviposition stage, and the mite could survive and reproduce on 4 host plants, namely green bean, corn, eggplant and pepper, and the reproductive population showed an increasing trend, in which the number of oviposition was in the order of green beanm, corn, eggplant, pepper, peanut, tomato, cotton. The oviposition period of T. truncatus prunus on eggplant and green bean was basically the same, with the longest oviposition period reaching 28 d. The oviposition period of T. truncatus prunus on pepper was the shortest, with the longest oviposition period only reaching 21 d. In conclusion, the most suitable temperature and host plant for the growth and development of Tetramethylus prunus were 28 ℃ and green bean, respectively. In conclusion, the most suitable temperature and host plant for the growth and development of T. truncatus frustum were 28 ℃ and green bean, respectively. The aim of this study was to screen out the rather host and temperature for indoor breeding of T. truncatus laminae, so as to provide a stable feed source for the breeding of natural enemy insects, and also provide a theoretical basis for the comprehensive management of T. truncatus laminae. Reference | Related Articles | Metrics | Comments（0） Select Preparation of Wettable Powder Formulation of Trichoderma harzianum M-17 Chlamydospores and Its Field Control Effect on Potato Dry Rot WANG Xigang, GUO Chengjin, JIAO Yang, ZHAO Pei, TIAN Jing, ZHANG Lirong, SHEN Ruiqing Chinese Journal of Biological Control    2024, 40 (6): 1319-1330.   DOI: 10.16409/j.cnki.2095-039x.2024.02.061 Abstract （350）      PDF（pc） （576KB）（1598）       Knowledge map    Save To development an efficient biocontrol antimicrobial agent of potato dry rot and prolong the shelf of the product, this study utilized Trichoderma harzianum M-17 as the primary research object. Single factor selection and formulation optimization were used to obtain the wettable powder (WP). The optimal formulation of WP was chlamydospore powder (20%), attapulgite (68%) as carrier, sodium dodecyl sulfonate (4%) as wetting agent, sodium carboxylcellulose (7%) as dispersion, and ascorbic acid (1%) as UV protective agent. The chlamydospore content of this WP was 3.1×108 CFU/g, the wetting time was 56.5 s, the spore suspension rate was 82.27%, pH 6.79, the moisture content was 2.26%, the ratio transiting standard test sieve with 74 µm was 98%. All indicators meet the national standards. The results of field experiments showed that T. harzianum M-17 chlamydospore wettable powder could promote the growth of potato plants and indicated a good control effect on potato dry rot, with a control efficacy of 70.32% and a yield increase rate of 19.03%. This study lays a technical foundation for the development of T. harzianum M-17 chlamydospore wettable powder into a microbial fungicide for the control of potato soil-borne diseases. Reference | Related Articles | Metrics | Comments（0） Select Effect of Age of Parasitoid on the Length of the Development and Brood Size of Offspring of Sclerodermus alternatusi Yang (Hymenoptera: Bethylidae) WANG Lina, TANG Yanlong, KANG Kui, WEI Ke, WANG Xiaoyi, YANG Zhongqi, ZHANG Yanlong Chinese Journal of Biological Control    2024, 40 (5): 969-976.   DOI: 10.16409/j.cnki.2095-039x.2024.03.002 Abstract （348）      PDF（pc） （409KB）（563）       Knowledge map    Save The article compared the number of offspring, developmental biology, and sex ratio of Sclerodermus alternatusi Yang (Hymenoptera: Bethylidae) in order to investigate the effect of parasitoid age on the length of the immature stage and brood size of offspring. One parasitoid per host was inoculated on Thyestilla gebleri larvae at intervals of 15 days under normal temperature conditions after the female emerged. The findings indicated that there was no discernible change between the parasitism and successful parasitism rates as parasitoid age increased. At different parasitoid ages, there were significant differences in the pre-oviposition duration of the female, the larval stage, the pupal stage, and the offspring’s developmental duration; however, there was no significant difference in the egg stage durations. The sizes of the female offspring and the total number of offspring varied significantly depending on the parasitoid's age. For example, when the mother female was 15 days old, 43.21 females and 47.21 offspring emerged from one host; when the mother female was 1 day, 30 days, and 45 days old, the number of females and offspring decreased slightly; and when the mother female was 60 days old, 26.12 females and 28.88 offspring obtained from one host. The number of male progeny that emerged from a single host was approximately 2—4; there was no discernible variation in the parasitoid ages, and the number of female offspring was substantially lower. At five mother female ages, the male offspring ratios were less than 10%, and at varied parasitoid ages, the winged female offspring significantly declined and were all less than 20%. When the mother female was less than 45 days old, the parasitoid would maintain parasitism effectively at room temperature and lay an adequate number of eggs. New sources for raising and managing S. alternatusi to suppress longhorn beetles are supplied by this work. Reference | Related Articles | Metrics | Comments（0） Select Effects of Host Plant and Prey on Nymphal Survival and Development of the Omnivorous Predator, Nesidiocoris tenuis TIAN Yanli, YANG Yixin, ZHANg Yulu, WANG Xiaowei, LIU Yinquan Chinese Journal of Biological Control    2024, 40 (3): 542-549.   DOI: 10.16409/j.cnki.2095-039x.2023.01.022 Abstract （347）      PDF（pc） （407KB）（674）       Knowledge map    Save The omnivorous predator, Nesidiocoris tenuis, is an important natural enemy of various insect pests. It can survive by feeding on some plants when prey is scarce. Thus, data of performance of N. tenuis on various plants and in the presence/absence of prey are essential to the development of banker plant systems for utilizing this predator in biological control of insect pests. In this study, we tested for the performance of N. tenuis feeding on three nectar resource plants (sesame, alyssum, and buckwheat) and two crops (cotton and pakchoi), using detached leaves with or without Bemisia tabaciadults as prey and intact plants. Our results showed that in the absence of the prey with detached leaves, 85.2% and 80.0% of the N. tenuis nymphs developed into adults on sesame and pakchoi, with developmental durations of 15.0 and 19.2 days, respectively. In contrast, the N. tenuis nymphs only reached the 4th, 3rd, 3rd and 2nd instars on buckwheat, alyssum, cotton and the water control, respectively. In the presence of the prey, the N. tenuis nymphs could develop into adults on detached leaves of all the five plant species, with the shortest nymphal developmental duration of 11.8 days and the highest proportion of eclosion of 83.3% on sesame. The survival and development of the N. tenuis nymphs on intact plants of the five plant species were similar to those on the detached leaves, and only the nymphs on sesame and pakchoi developed into adults at rates of 93.3% and 66.7%, respectively. The sex ratio of N. tenuis was approximately 0.6 under all conditions tested, and there was no significant difference in the nymphal developmental duration between male and female insects. The feasibility of establishing banker plant systems with this important omnivorous predator for the biological control of insect pests is discussed. Reference | Related Articles | Metrics | Comments（0）