Pest Management Science (2022) 78, 4105-4113

Da-Wei Zhang, Chang-Chun Dai, Abid Ali, Yong-Qiang Liu, Ye Pan, Nicolas Desneux and Yan-Hui Lu (2022)
Lethal and sublethal effects of chlorantraniliprole on the migratory moths Agrotis ipsilon and A. segetum: New perspectives for pest management strategies
Pest Management Science 78 (10), 4105-4113
Abstract:
BACKGROUND
Agrotis ipsilon and A. segetum are major migratory pests of many crops in China, and frequent regional outbreaks cause severe yield losses. Use of food attractants is one of the most promising control methods against adult lepidoptera, notably through the attract-and-kill strategy. Chlorantraniliprole's acute toxicity and sublethal effects on both moths were evaluated.
RESULTS
Chlorantraniliprole showed high activity against both adults of both species, with LC₂₀ and LC₅₀ values of 0.08 and 0.21 mg L^-1 (A. ipsilon), and 0.14 and 0.51 mg L^-1 (A. segetum). The fecundity, effective oviposition rate, and egg hatching rate of both species in dual-sex exposure treatments were all significantly reduced compared with the control, and the population growth coefficients in the LC₅₀female × LC₅₀male treatments were only 0.32% (A. ipsilon) and 3.35% (A. segetum) that of the control. Furthermore, the flight distance was significantly suppressed from 6.67 km (control) to 0.01 km (LC₅₀) for A. ipsilon, and from 7.39 km (control) to 0.78 km (LC₅₀) for A. segetum. The proportions of robust- and medium-flight individuals of A. ipsilon and A. segetum in exposure treatments were greatly reduced.
CONCLUSIONS
Low lethal concentration exposures to chlorantraniliprole can drastically reduce the reproduction and flight performance of A. ipsilon and A. segetum, while inhibiting the production of offspring, suggesting chlorantraniliprole would be an excellent compound for use in combination with food attractants. Chlorantraniliprole has good potential for management of the two long-range migratory pests tested using an attract-and-kill strategy.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Nicolas Desneux

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Agrotis ipsilon
	Agrotis segetum