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    The Research Progress on the Effects of Entomopathogenic Fungi on Natural Enemies
    YAN Sen, REN Xiaoyun, WANG Dengjie, ZHANG Ye, ZHANG Zhike, GUO Jiyuan, WANG Haihong, LEI Zhongren, WU Shengyong
    Chinese Journal of Biological Control    2023, 39 (1): 221-230.   DOI: 10.16409/j.cnki.2095-039x.2022.01.014
    Abstract949)      PDF(pc) (757KB)(3487)       Save
    Entomopathogenic fungi, the important microbial insecticides, have been widely used in biological control of agricultural and forestry pests. Because of the wide range of hosts and active infection, entomopathogens, when infecting or killing the target pests, may have potential pathogenic or sublethal risks to non-target arthropods including insect natural enemies. In this paper, we summarized the progress in application of entomopathogens for pest control and the negative effects of entomopathogens on natural enemies, and provided perspectives on the future development direction of combined application of the high potential entomopathogenic fungi pesticides and natural enemy organisms in pest management.
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    Population Fitness of the Hoverfly, Episyrphus balteatus (De Geer) (Diptera:Syrphidae) Fed on Different Aphid Species
    JIANG Shanshan, LI Hui, HE Limei, WU Kongming
    Chinese Journal of Biological Control    2023, 39 (2): 254-263.   DOI: 10.16409/j.cnki.2095-039x.2022.03.012
    Abstract807)      PDF(pc) (485KB)(2615)       Save
    Episyrphus balteatus (De Geer) is one of the most common predatory natural enemies in agricultural ecosystems. It has dual ecological service functions of pollination and biological control and plays an important role in improving crop yield and protecting biodiversity. However, the proper aphid species for artificial rearing of the predator is still unclear. Our study on the relationship between three aphid species, Aphis craccivora Koch, Myzus persicae Sulzer, and Megoura japonica Matsumura and fitness of E. balteatus showed that the developmental durations of larva (5.9 d) and pupa (6.0 d) with M. japonica were significantly shorter than those with the other preys, and the larval survival rate (80.0%) was the largest; the highest pupation rate (88.4%) and pupal emergence rate (100.0%) were attained with the prey A. craccivora, the lowest pupation rate (47.6%) and pupal emergence rate (49.6%) were recorded with M. persicae; With A. craccivora, M. persicae and M. japonica, the average generation period (T) of the predator was 30.26 d, 32.41 d and 32.34 d, respectively; the intrinsic rate of increases (r) was 0.1581, 0.0953 and 0.1424, respectively; and the finite rate of increase (λ) was 1.1713, 1.1002 and 1.1531, respectively. Flight ability tests showed that prey species had a significant effect on the flight velocity of adults, the highest velocity (0.29 m/s) was recorded with the prey M. japonica, in contrast to the lowest velocity (0.23 m/s) with M. persicae. This study indicates that M. japonica is a suitable aphid species for artificial rearing of E. balteatus, which is of theoretical and practical significance for large-scale rearing and utilization of the biocontrol and pollination ecological service functions of E. balteatus.
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    Potential and Prospect of Beauveria bassiana and Metarhizium anisopliae as Biological Pesticides for the Control of Red Fire Ants
    NONG Xiangqun, WANG Guangjun, WANG Yiyan, ZHANG LEI, GAO Qionghua, YU Yonghao
    Chinese Journal of Biological Control    2023, 39 (2): 453-461.   DOI: 10.16409/j.cnki.2095-039x.2023.01.004
    Abstract790)      PDF(pc) (519KB)(3325)       Save
    The red fire ant Solenopsis invicta Buren has invaded from South America into many countries in North America, Asia and the Pacific islands. In China, the ant has spread to more than 500 cities and counties of 12 provinces, seriously damaging agricultural and forestry production, ecological balance and human settlement safety. In order to achieve sustainable management of red fire ants, it is necessary to introduce and strengthen the role of biological control. Here we summarized the overall situation of development of entomopathogenic fungi Beauveria and Metarhizium as biological pesticides, as well the detailed progress of the development directing at red fire ants, including highly virulent strains, large-scale production, product formulations and registration, and the application in the field. Meanwhile, we analyzed the advantage and problems of the two fungi for control of red fire ants. The prospect outlook of fungal insecticides in the control of red fire ants was discussed.
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    Mechanism of Chaetomium globosum in Promoting Growth and Preventing Disease and Advance of Its Application and Research
    FENG Chaohong, LI Lijuan, ZHANG Jiaojiao, WANG Junmei, SONG Yuli, LI Haohai, XU Fei
    Chinese Journal of Biological Control    2023, 39 (4): 961-969.   DOI: 10.16409/j.cnki.2095-039x.2023.02.043
    Abstract705)      PDF(pc) (432KB)(14839)       Save
    Chaetomium globosum, one of common plant endophytic fungi, possesses potential biocontrol function against many plant diseases. This paper summarized the research advances of Chaetomium globosum on biocontrol effect, and its biocontrol mechanisms, which include antibiosis, growth-promoting effect, induction of plant resistance, niche and nutrient competition, and hyperparasitism. Chaetomium globosum exhibits great application potential on plant disease control and growth promotion, soil improvement, and straw degradation. Advances on the fermentation technology and genetic engineering were also illuminated. This study will provide theoretical references for the application research of Chaetomium globosum as biocontrol agent.
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    Optimization of Culture Conditions of Penicillium bilaiae 47M-1 and Its Control Efficacy on Fusarium Wilt of Sesame
    ZHAO Xinbei, ZHAO Hui, NI Yunxia, LIU Xintao, HE Bipo, Jia Min, ZHANG Chunyan, Li Yongdong, ZHAO Shikui, LIU Hongyan
    Chinese Journal of Biological Control    2023, 39 (1): 167-175.   DOI: 10.16409/j.cnki.2095-039x.2023.02.005
    Abstract693)      PDF(pc) (856KB)(1864)       Save
    Penicillium bilaiae strain 47M-1 is a highly effective biocontrol strain with broad-spectrum inhibition activity and growth promotion ability, but its biological characteristics, optimum culture conditions and control efficacy on sesame diseases have not been systematically studied. The purpose of this study was to determine the biological characteristics, the optimum culture conditions and control efficacy of Penicillium bilaiae 47M-1. On the basis of identifying the biological characteristics of strain 47M-1, the optimum culture conditions of strain 47M-1 were obtained by single factor test with Fusarium oxysporum as target and the control efficacy was determined by pot test. The results showed that mycelium growth was fast under the conditions of 25 ℃~28 ℃, pH 5.0~7.0 and 0~16 h light in photoperiod, and sporulation was the high under the conditions of 25 ℃~28 ℃, pH 3.0~10.0 and 8 h light in photoperiod. Lethal temperature of conidia was 60 ℃ for minutes. The optimal culture fluid for producing inhibition substances was as follows: sucrose 30 g, yeast powder/beef extract/peptone 5 g, KCl 0.5 g, MgSO4·7H2O 0.5 g, FeSO4·7H2O 0.01 g, distilled water 1000 mL. When 2% or 3% spore suspension were inoculated with 75~125 mL optimized culture fluid at pH 7.0, and cultured at 25℃~27℃ for 5 days on a constant temperature shaker, the inhibition activity of culture filtrate was the strongest. The results of pot experiment showed that the control efficacy of both spore suspension and 10-fold diluent of fermentation filtrate were more than 70% against sesame Fusarium wilt. Penicillium bilaiae 47M-1 showed excellent potential for biocontrol. The results will lay a foundation for the study of inhibition substances, production of biocontrol agent and application in field.
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    Determination of Larval Instars and Duration of the Tomato Leaf miner, Tuta absoluta (Meyrick) (Lepidoptera:Gelechiidae)
    ZHANG Guifen, YIN Huijun, WANG Yusheng, LI Zhenjiang, BI Siyan, WANG Rui, LIU Wanxue, WAN Fanghao
    Chinese Journal of Biological Control    2023, 39 (2): 340-345.   DOI: 10.16409/j.cnki.2095-039x.2022.03.024
    Abstract684)      PDF(pc) (383KB)(1489)       Save
    The tomato leafminer Tuta absoluta (Meyrick), originated in Peru, South America, is a worldwide destructive pest of tomato. In China, T. absoluta was first detected in Xinjiang in 2017 and has posed a potential threat to China’s tomato and other grain and vegetable solanaceous crops. Division of larval instars of the leafminer is important for studies of biological characteristics, population dynamics, and population monitoring and prediction and control, such as biocontrol based on larval parasitoids. The head capsule width is an important index for larval instar division. The number of larval instars was determined and tested according to the frequency distribution analysis, Dyar’s rule, Crosby’s growth rule, as well as regressive analysis based on two measured parameters, the head capsule width and body length. The head capsule width of the leafminer larvae fitted well with the Dyar’s rule and Crosby’s growth rule. There was an obvious exponential regression relationship between the number of larval instars and the head capsule width, showing that the head capsule width can be used as an important index for larval instar division. The larvae of T. absoluta can be divided into four instars. The values of the head capsule width of the 1st, 2nd, 3rd, and 4th instar larvae were 0.1375―0.1575 mm, 0.2125―0.2725 mm, 0.3200―0.4100 mm, and 0.4975―0.5800 mm, respectively. The values of body length corresponding to the above four larval instars were 0.80―1.52 mm, 0.91―3.33 mm, 2.42―4.89 mm, and 4.18―7.32 mm, respectively, which could be used as an auxiliary index to determine the number of larval instars of the tomato leafminer. At 27℃, the larvae completed development in 13 d, the 1st, 2nd, 3rd, and 4th larval instars lasted 1―4 d, 3―6 d, 4―7 d, and 6―15 d, respectively. Thus, the T. absoluta larvae are divided into four instars according to the head capsule width, while the body length can be used as an auxiliary index in larval instar division duo to its great variation in the same and between instars.
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    The Application Potential of Brevibacillus laterosporus in Agriculture
    LIU Fang, WU Hongqu, WEN Shaohua, FANG Wei, WANG Kaimei
    Chinese Journal of Biological Control    2023, 39 (1): 231-240.   DOI: 10.16409/j.cnki.2095-039x.2023.02.013
    Abstract657)      PDF(pc) (414KB)(1869)       Save
    Brevibacillus laterosporus shows broad spectra of bioactivities which make itself great importance of application in agriculture. In this review, the bioactivities of B. laterosporus in the biological control of plant disease and insect pests, plant-growth promoting and stress tolerance, the improvement of soil fertility and the microbial bioremediation of environment were summarized, and the problems existing in its large-scale application in agriculture were analyzed. The development trend and application potential in agriculture were further prospected.
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    Research Progress on Biology, Ecology and Biological Control of Cheilomenes sexmaculata (Coleoptera: Coccinellidae)
    TANG Liangde, ZANG Liansheng
    Chinese Journal of Biological Control    2023, 39 (3): 697-709.   DOI: 10.16409/j.cnki.2095-039x.2023.05.002
    Abstract648)      PDF(pc) (467KB)(6422)       Save
    The ladybeetle Cheilomenes sexmaculata (Fabricius) (Coleoptea: Coccinellidae) is one of the dominant natural enemies of various insect pests in agroforestry ecosystem due to wide distribution, common occurrence in field, high reproductive rate, wide feeding range, excellent predation ability and strong adaptability, thus there is a bright development prospect to develop this predator. In this article we reviewed the research progress on C. sexmaculata in recent 40 years, mainly focusing on the taxonomy, biological characteristics, biological control, artificial rearing, and insecticide impacts. In addition, the prospects for the future studies and application of C. sexmaculata were also discussed.
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    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
    Abstract638)      PDF(pc) (416KB)(679)       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.
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    Visual System and Opsin in Insect
    TANG Yanhong, BI Siyan, WANG Xiaodi, MA Dongfang, YANG Nianwan, GUO Jianyang, LÜ Zhichuang, LIU Wanxue
    Chinese Journal of Biological Control    2023, 39 (3): 718-730.   DOI: 10.16409/j.cnki.2095-039x.2023.05.004
    Abstract611)      PDF(pc) (1851KB)(16247)       Save
    Insects have a well-developed and sensitive visual system, and opsin is a basic component of animal vision, and its structure largely determines the sensitivity of visual pigments to light of different wavelengths. The duplication and differentiation of opsin genes are the main mechanisms for the production of new light pigment sensitivity. Throughout the evolution of animals, many instances of opsin gene duplication and loss have occurred, forming the sensitivity of the various animal visual systems we observe today. In recent years, extensive and in-depth research has been carried out on visual proteins. This article describes the types of photoreceptors, the color vision system of insects, the classification of visual proteins, the phenomenon of co-expression of visual proteins, the duplication and deletion of visual protein genes, and the mechanism and research status of the physiological functions of visual proteins.
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    Analysis of Inhibitiory Active Substances of Penicillium bilaiae Strain 47M-1 Based on Non-Targeted Metabolomics
    ZHAO Xinbei, NI Yunxia, LIU Xintao, ZHAO Hui, YAN Wenqing, HE Bipo, LIU Hongyan
    Chinese Journal of Biological Control    2023, 39 (5): 1156-1171.   DOI: 10.16409/j.cnki.2095-039x.2023.02.055
    Abstract577)      PDF(pc) (1605KB)(16436)       Save
    Strain 47M-1 of Penicillium bilaiae showed significant inhibitory effect on a variety of sesame pathogenic fungi. In order to analyze the inhibitiory active substances produced by this strain, liquid chromatography tandem mass spectrometry was used to detect the metabolites of strain cultured for 48 h, 96 h and 144 h. Then, classification of up-regulated differential metabolites in the HMDB database and enrichment of KEGG metabolic pathways were analyzed in order to identify the active metabolites. A total of 105 up-regulated differential metabolites were detected, which were mainly enriched in the superclasses of phenylpropanoids and polyketides. The enrichment analysis of the KEGG metabolic pathways showed that the up-regulated differential metabolites were mainly enriched in metabolic pathways, biosynthesis of cofactors, purine metabolism, biosynthesis of amino acids and ABC transporters. The inhibitiory activities of some up-regulated differential metabolites were verified using medicated plate method. These compounds naringenin, protocatechuic acid, D-(-)-quinic acid, hesperetin, 3-(3-Hydroxyphenyl) propanoic acid, 3, 4-dihydroxyhydrocinnamic acid, 5, 7-dihydroxy-2-(4-hydroxyphenyl)-3, 4-dihydro-2H-1-benzopyran-4-one, rosmarinic acid, bergapten and eriodictyol all showed excellent inhibition activities against sesame pathogenic fungi. In this study, the major groups and key metabolic pathways of potential inhibition metabolites produced by strain 47M-1 were identified, and the inhibitiory activity of some up-regulated differential metabolites was verified. This study will provide data support for the further development and utilization of strain 47M-1 and the research and development of microbial pesticide.
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    The Effect of Different Ecological Factors on Trichogramma pintoi (Voegelé) Parasitizing Eggs of Tomato Leafminer, Phthorimaea absoluta (Meyrick)
    FU Kaiyun, LI Aimei, DING Xinhua, JIA Zunzun, AHMAT·Tuerxun, ROUZI·Arzigul, FENG Hongzu, LI Xiaowei, GUO Wenchao
    Chinese Journal of Biological Control    2023, 39 (3): 507-513.   DOI: 10.16409/j.cnki.2095-039x.2023.01.011
    Abstract576)      PDF(pc) (366KB)(2327)       Save
    Trichogramma pintoi is an egg-parasitic natural enemy of Lepidopteran pests. Clearify its ability to parastic eggs of Phthorimaea absoluta provides a sight for controling P. absoluta by T. pintoi in field. In this paper, by setting different levels of egg density of T. absoluta, temperature, humidity, presence or absence of light and the days after egg laid, the main factors that affect T. pintoi parasitizing P. absoluta eggs are evaluated. At the parasitic egg density of 30 eggs/tube, 26 ℃, 75% relative humidity, and darkness environment, the parasitic rate is the highest and reach to 93.33%. The longer the duration of egg laid by P. absoluta is, the weaker the ability of T. pintoi to parasitize it. According to the model fitting test, the parasitism of T. pintoi on P. absoluta eggs is consistent with the disc equation of Holling-Ⅱ functional response, indicating that T. pintoi is one of the potential parasitoids to control P. absoluta.
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    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
    Abstract565)      PDF(pc) (432KB)(5579)       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.
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    Reproductive Phenotype of Two Wolbachia-infected Thelytokous Line of Trichogramma dendrolimi Matsumura
    Lü Lin, LI Yuanyuan, HUO Liangxiao, LIANG Hongyu, ZHANG Huanhuan, ZHOU Jincheng, ZHANG Lisheng, DONG Hui
    Chinese Journal of Biological Control    2023, 39 (2): 245-253.   DOI: 10.16409/j.cnki.2095-039x.2022.03.031
    Abstract564)      PDF(pc) (1064KB)(1712)       Save
    The effects of temperature, genetic background, and age on the reproductive phenotype and Wolbachia titer of Wolbachia-infected thelytokous line of Trichogramma dendrolimi Matsumura were investigated by analyzing the parameters of reproductive phenotype (male proportion and intersex proportion), fitness (numbers of parasitized host eggs and emergence proportion), and Wolbachia titer as influenced by temperature (22 ℃ and 29 ℃), female age, and genetic background (ZW line and XF line). The results showed that the male proportion and intersex proportion at 29 ℃ were significantly higher than those at 22 ℃. However, the Wolbachia titer and the number of daily parasitized host eggs deposited by maternal females at 29 ℃ were significantly lower than those at 22 ℃. The male proportion of ZW line was significantly higher than that of XF line, but the number of daily parasitized host eggs of ZW line was significantly lower than that of XF line. The male proportion and intersex proportion of offspring increased significantly with the age of maternal females, but the number of daily parasitized host eggs and emergence proportion of offspring decreased significantly with the age of maternal females. The results highlight the significant effects of temperature and age on the reproductive phenotype of Wolbachia-infected thelytokous line of Trichogramma dendrolimi Matsumura with different genetic background. The research is expected to help the improvement of the mass-rearing procedure and field application of thelytokous Trichogramma in biological control programs.
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    Formula, Wettability and Spraying Performance of 1.0% Matrine Soluble Concentrate
    LI Meng, WANG Zhen, MENG Huanwen, DONG Baozhu, LIU Jiapu, SUN Ruifeng, ZHOU Hongyou
    Chinese Journal of Biological Control    2022, 38 (6): 1410-1417.   DOI: 10.16409/j.cnki.2095-039x.2022.01.001
    Abstract542)      PDF(pc) (746KB)(1197)       Save
    To develop a soluble concentrate (SL) of Matrine suitable for aerial spray and determine its wettability and spray performance, we employed a single factor test to screen the types and quantities of wetting dispersants of Matrine SL, to test the heat storage and low temperature stability of each formula, to determine the static surface tension (SST) and dynamic contact angle (DCA) of preparation using optical contact angle measuring instrument, and to measure the droplet density and coverage of Matrine SL in drone spray using water-sensitive paper. According to the results, when the dosage of BY-125, a wetting agent suitable for Matrine SL, was between 1%-5%, the preparation possessed a better stability. When the dosage of BY-125 increased, SST and DCA of Matrine SL gradually decreased. With 1.5% Betaton was added into the diluent, SST and DCA decreased by 48.78%-52.39% and 56.59%-62.81%, respectively. When the diluent was tank-mixed with 1.5% Betaton, the control of 1% Matrine SL on Schizaphis graminum (Rondani), droplet density and coverage increased significantly, compared with that without Betaton. The current results show that BY-125 can be used to make Matrine SL preparation, with the optimal dosage of 1%, and that the Matrine SL tank-mixed with 1.5% Betaton is of high wettability and deposition performance, which optimizes the spray performance and control efficiency of Matrine SL in drone spray.
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    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
    Abstract532)      PDF(pc) (476KB)(2043)       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.
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    Identification of Two Common Larval Parasitic Wasps of Ectropis obliqua and Ectropis grisescens (Lepidoptera: Geometridae)
    ZHOU Xiaogui, Tang Pu, Wu Qiong, GUO Huawei, XIAO Qiang, CHEN Xuexin
    Chinese Journal of Biological Control    2023, 39 (1): 1-9.   DOI: 10.16409/j.cnki.2095-039x.2022.01.003
    Abstract530)      PDF(pc) (2716KB)(1736)       Save
    Ectropis obliqua (Prout) and Ectropis grisescens Warren (Lepidopotera: Geometridae) are two of the most destructive chewing pests in China’s tea plantations. Two of the parasitic wasps, which previously reported as Apanteles spp. (Hymenoptera: Braconidae: Microgastrinae), can play important role in controlling Ectropis spp. during the larval stage in nature. In order to determine the species names and morphological differences of the two wasps, and to confirm whether these two species are common parasitic wasps of E. obliqua and E. grisescens, we identified the wasp specimens emerged from E. obliqua and E. grisescens that were collected from 22 locations in 8 provinces of China and reared in the laboratory, and compared the COI sequences of the voucher specimens with those of known species recorded in the BOLD database. The findings revealed that both parasitic wasps emerged from E. obliqua as well as E. grisescens during the larval stage. Based on morphological and molecular data, these two species of Apanteles spp. were identified as Protapanteles immunis (Haliday, 1834) and Parapanteles hyposidrae (Wilkinson, 1928). In conclusion, this study has confirmed the specific species names and morphological characteristics of the two wasps reported as Apanteles sp. in China more than 40 years ago, which are common larval parasitic wasps of E. obliqua and E. grisescens, and the P. immunis is recorded for the first time in China. These results provide a scientific basis for accurately identifying indigenous dominant parasitic wasps, which might help manage E. obliqua and E. grisescens.
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    Research Progress on Ecological Regulation to Crop Pests using Agricultural Biodiversity
    YAN Xueying, WANG Hui, ZHANG Yanjun, ZHAO Jianning, YANG Dianlin, ZHANG Guilong
    Chinese Journal of Biological Control    2023, 39 (3): 710-717.   DOI: 10.16409/j.cnki.2095-039x.2023.05.003
    Abstract522)      PDF(pc) (393KB)(15562)       Save
    At present, in the context of protecting biodiversity, maintaining the sustainable and healthy development of ecosystems and reducing the use of fertilizers and pesticides, using agricultural biodiversity to control pests has become one of the hotspots in domestic and foreign research. Agricultural biodiversity is important for maintaining the function of agricultural ecosystem and the control of crop pests are of great significance. This paper briefly describes the concept and current situation of agricultural biodiversity, and summarizes the scientific principles or theories of pest ecological regulation of biodiversity, starting from the protection of agricultural biodiversity by non-agricultural habitats and its influencing factors on agricultural biodiversity. The methods and specific applications of ecological regulation to crop pests using agricultural biodiversity are analyzed at the three levels of farmland, farmland boundary and farmland landscape pattern, and finally put forward the development direction of ecological regulation to crop pests using agricultural biodiversity, which provides knowledge, principles, methods and technical support for effective pest ecological regulation.
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    Predation Effect of Sycanus croceovittatus on the 3rd-Instar Larvae of Spodoptera exigua
    CHEN Suyi, ZHAO Ping, SHI Anxian, SHI Aimin, WANG Chunya, CAI Wanzhi, LI Hu
    Chinese Journal of Biological Control    2023, 39 (2): 289-296.   DOI: 10.16409/j.cnki.2095-039x.2023.03.001
    Abstract514)      PDF(pc) (638KB)(595)       Save
    Sycanus croceovittatus (Hemiptera: Heteraptera: Reduviidae),a widely distributed predatory natural enemy in the southern provinces of China, is a potential biological control agent for lepidopteran, coleopteran and hemipteran pests. In order to evaluate the potential of Sy. croceovittatus to control Spodoptera exigua (Lepidoptera: Noctuidae), the 3rd–5th-instar nymphs and adults of Sy. croceovittatus were tested in laboratory condition for their predation functional responses and searching effects on the 3rd-instar larvae of Sp. exigua at different densities, as well as for the effect of conspecific density interference. The results showed that the predation amount of Sy. croceovittatus increased significantly with the increase of prey density, and the 5th-instar nymphs had the highest predation on the 3rd-instar larvae of Sp. exigua. The predation functional responses of Sy. croceovittatus at different stages fitted well with both Holling Ⅱ and Holling Ⅲ models. In the Holling II model, the 3rd-5th-instar nymphs and female and male adults of Sy. Croceovittatus had the daily maximum consumption of 9.12, 11.42, 22.86, 23.74 and 23.09, and the predation capacity of 12.63, 15.56, 29.04, 24.04 and 16.83, respectively. According to the Holling Ⅲ model, the 3rd-5th-instar nymphs and female and male adults of Sy. croceovittatus had the daily maximum consumption of 8.35, 10.06, 17.54, 16.52 and 14.15, and the optimal searching density of 3.92, 4.46, 7.20, 7.87 and 8.69 per box, respectively. The searching effect was negatively correlated with the pest density, and the conspecific density interference effect was positively correlated with the density of natural enemy. In conclusion, the 5th-instar nymphs had the higher predation ability on the 3rd-instar larvae of Sp. exigua than other developmental stages of Sy. croceovittatus..
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    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
    Abstract489)      PDF(pc) (530KB)(3868)       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.
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