Field-Evolved Resistance of the Fall Armyworm (Lepidoptera: Noctuidae) to Synthetic Insecticides in Puerto Rico and Mexico
| Autor: | J. Concepción Rodríguez-Maciel, Christina D. DiFonzo, Carlos A. Blanco, David Mota-Sanchez, Mark E. Whalon, Henry Terán-Santofimio, Rebeca Gutierrez-Moreno |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Insecticides Pesticide resistance Population Spinosad Methomyl Spodoptera 01 natural sciences Insecticide Resistance Toxicology 03 medical and health sciences chemistry.chemical_compound medicine Animals education Mexico Emamectin education.field_of_study Ecology biology business.industry Puerto Rico Pest control General Medicine biology.organism_classification 010602 entomology 030104 developmental biology Deltamethrin chemistry Insect Science Africa Fall armyworm business medicine.drug |
| Zdroj: | Journal of Economic Entomology. 112:792-802 |
| ISSN: | 1938-291X 0022-0493 |
| DOI: | 10.1093/jee/toy372 |
| Popis: | The fall armyworm, Spodoptera frugiperda (J. E. Smith), is one of the main pests of corn in many areas of the American continent. The reliance on pesticides to control fall armyworm has led to the development of insecticide resistance in many regions. We determined the resistance levels of fall armyworm to insecticides of different modes of action in fall armyworm populations from Puerto Rico and several Mexican states with different insecticide use patterns. Mexican populations that expressed higher resistance ratios (RR50) were: Sonora (20-fold to chlorpyriphos), Oaxaca (19-fold to permethrin), and Sinaloa (10-fold to flubendamide). The Puerto Rico population exhibited a remarkable field-evolved resistance to many pesticides. The RR50 to the insecticides tested were: flubendiamide (500-fold), chlorantraniliprole (160-fold), methomyl (223-fold), thiodicarb (124-fold), permethrin (48-fold), chlorpyriphos (47-fold), zeta-cypermethrin (35-fold), deltamethrin (25-fold), triflumuron (20-fold), spinetoram (14-fold). Spinosad (eightfold), emamectin benzoate and abamectin (sevenfold) displayed lower resistance ratio. However, these compounds are still effective to manage fall armyworm resistance in Puerto Rico. Fall armyworm populations from Mexico show different levels of susceptibility, which may reflect the heterogeneity of the pest control patterns in this country. The status of insecticide resistance in the fall armyworm from Puerto Rico indicates a challenging situation for the control of this pest with these insecticides in the close future. Lessons learned from this research might be applied in regions with recent invasions of fall armyworm in Africa. |
| Databáze: | OpenAIRE |
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