Welcome to Chinese Journal of Biological Control,Today is

Chinese Journal of Biological Control ›› 2025, Vol. 41 ›› Issue (1): 15-23.DOI: 10.16409/j.cnki.2095-039x.2024.07.001

• RESEARCH REPORTS • Previous Articles    

Predation Abilities of Mite Anystis baccarum on Spider Mites Tetranychus turkestani and Tetranychus urticae

LI Mengdie, TANG Yang, LI Kun, WANG Jiahua, LI Yisong   

  1. Key Laboratory of Agricultural and Forestry Pest Monitoring and Safety Prevention and Control/Engineering Research Center of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University/Key Laboratory of Prevention and Control of Invasive Alien Organisms in Agriculture and Forestry of Northwest Desert Oasis, Ministry of Agriculture and Rural Affairs, Urumqi 830052, China
  • Received:2024-01-07 Published:2025-03-21

Abstract: Tetranychus turkestani (Ugarov et Nikolski) and Tetranychus urticae (Koch) are the main pests of cotton. Anystis baccarum (Linnaeus) is an important predatory natural enemy of agricultural and forestry pests and mites. In order to clarify the predatory effect and biological control potential of A. baccarum on T. turkestani and T. urticae, the predatory selectivity and functional response of A. baccarum to each stage of the two spider mites and the interference effect of the density of A. baccarum on its predation were determined under laboratory conditions. The results showed that A. baccarum preferred the juvenile and nymph of T. turkestani and T. urticae, with selection coefficients Q of 1.87, 1.04 and 1.79, 1.12, respectively. The functional responses of A. baccarum to T. turkestani and T. urticae fitted well with Holling II type, and the predatory ability of A. baccarum to T. turkestani and T. urticae juveniles was the strongest, with a/Th of 18.751 and 25.391, respectively. The predatory ability on nymphs was the second, with a/Th of 9.182 and 10.919, respectively. The a/Th on T. urticae juveniles and nymphs were higher by 35.4% and 18.9% than those on T. turkestani, respectively. The 1/Th (43.478, 27.029) on T. urticae juveniles and nymphs were higher by 21.7% and 18.9% than those on T. turkestani (35.718, 22.727), respectively. A comprehensive comparison of the a/Th and 1/Th on the two spider mites showed that the predatory ability of A. baccarum on T. urticae was stronger than that of T. urkestani. There was strong self-interference response and competition when A. baccarum preyed on the two spider mites, and the intraspecific interference was greater when T. turkestani was the prey. In summary, A. baccarum has good predatory ability on T. turkestani and T. urticae and is a potential biological control agent worthy of propagation.

Key words: Anystis baccarum, Tetranychus turkestani, Tetranychus urticae, functional response, predatory selection, predator interference

CLC Number: