Pesticide-Induced Planthopper Population Resurgence in Rice Cropping Systems

Planthoppers are serious rice pests in Asia. Their population resurgence was first reported in the early 1960s, caused mainly by insecticides that indiscriminately killed beneficial arthropods and target pests. The subsequent resurgence involved two mechanisms, the loss of beneficial insects and ins...

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Bibliographic Details
Published in:Annual review of entomology 2020-01, Vol.65 (1), p.409-429
Main Authors: Wu, Jincai, Ge, Linquan, Liu, Fang, Song, Qisheng, Stanley, David
Format: Article
Language:English
Subjects:
acute resurgence
Animals
chronic resurgence
Food Chain
Hemiptera
Insecticides - adverse effects
Laodelphax striatellus
Nilaparvata lugens
Oryza
planthoppers
Population Growth
Reproduction - drug effects
Sogatella furcifera
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Summary:Planthoppers are serious rice pests in Asia. Their population resurgence was first reported in the early 1960s, caused mainly by insecticides that indiscriminately killed beneficial arthropods and target pests. The subsequent resurgence involved two mechanisms, the loss of beneficial insects and insecticide-enhanced planthopper reproduction. In this review, we identify two forms of resurgence, acute and chronic. Acute resurgence is caused by traditional insecticides with rapid resurgence in the F 1 generation. Chronic resurgence follows application of modern pesticides, including fungicides and herbicides, with low natural enemy toxicity, coupled with stimulated planthopper reproduction. The chemical-driven syndrome of changes leads to later resurgence in the F 2 or later generations. Chronic resurgence poses new threats to global rice production. We review findings on the physiological and molecular mechanisms of chronic planthopper resurgence and suggest research directions that may help manage these new threats.
ISSN:0066-4170
1545-4487
DOI:10.1146/annurev-ento-011019-025215