Susceptibilidade do besouro rola-bosta africano a reguladores de crescimento de insetos

Domingues, Luísa N.; Mendes, Júlio

doi:10.1590/s0102-09352009000500010

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…Furthermore, buds treated with diflubenzuron in replacement experiments contained the fewest number of eggs and feeding/oviposition holes. The diflubenzuron-related reduction in the reproductive ability of the HBW that we observed has also been reported for several other insect orders (Diptera, Orthoptera, and Lepidoptera) [30][31][32] and coleopteran families (Coccinellidae and Scarabaeidae) [33,34], including Curculionidae. Previous research found the ability of diflubenzuron to be effective enough in its control of the congeneric cotton boll weevil to warrant its usage in the eradication trials for this pest in North Carolina and Virginia in 1979 [35].…”

Section: Discussionsupporting

confidence: 88%

Lethal and Sublethal Effects of Contact Insecticides and Horticultural Oils on the Hibiscus Bud Weevil, Anthonomus testaceosquamosus Linell (Coleoptera: Curculionidae)

Greene,

Yang,

Velazquez-Hernandez

et al. 2023

Insects

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In 2017, the hibiscus bud weevil (HBW), Anthonomus testaceosquamosus Linell (Coleoptera: Curculionidae), was found outside of its native range of Mexico and Texas, infesting hibiscus plants in Florida. Therefore, we selected 21 different insecticide and horticultural oil products to evaluate their effects on the reproductive rate, feeding, and oviposition behavior of the HBW. In laboratory experiments, significant mortality was observed in adult weevils exposed to diflubenzuron-treated hibiscus leaves and buds, and hibiscus buds treated with diflubenzuron contained the fewest number of eggs and feeding/oviposition holes. Among horticultural oil products, significant mortality was only observed in experiments in which adult weevils were directly sprayed (direct experiments). Pyrethrins and spinetoram plus sulfoxaflor reduced the oviposition rate and caused significant mortality in direct experiments. Diflubenzuron, pyrethrins, spinetoram plus sulfoxaflor, and spirotetramat were further tested via contact toxicity experiments and greenhouse experiments. Contact toxicity experiments demonstrated that the tested insecticides (except diflubenzuron) were highly toxic to HBW adults. In greenhouse experiments, only those hibiscus plants treated with pyrethrins had significantly fewer feeding/oviposition holes and larvae within their flower buds when compared to control (water-treated) plants. These results constitute an important first step in the identification of effective chemical control options for the HBW.

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