Data/hora: 04/06/2024 07:46:25

Biblioteca(s): | Epagri-Sede.
Data corrente: | 11/06/2019
Data da última atualização: | 11/06/2019
Autoria: | CASTILHOS, R. V.; PASINI, R.; GRÜTZMACHER, A. D.; NAVA, D. E.; BOTTON, M.
Título: | Effect of toxic baits used for fruit fly control against Trichogramma pretiosum and Chrysoperla externa.
Ano de publicação: | 2019
Fonte/Imprenta: | Fruits, Leuven, v. 74, n. 3, p. 110-116, 2019.
Idioma: | Inglês

Conteúdo:

Toxic baits are an important tool
in fruit flies management; however, some beneficial
insects such as natural enemies can be impaired by
this technique. In this study, the toxicity of some selected
baits on Trichogramma pretiosum and Chrysoperla
externa, which are important as biological control
agents of fruit pests, was evaluated. Materials and
methods ? Bioassays were conducted under laboratory
conditions (temperature of 25±2 °C, relative humidity
70±10% and 14 h day length) and consisted
on the exposure of adults to a fine film of bait (drops
with ~4 mm of diameter). Based on either, reduction
of the parasitism capacity for T. pretiosum or mortality
for C. externa, the baits were grouped in the IOBC
toxicity categories. Results and discussion ? The malathion-
based baits composed by the attractants sugarcane
molasses (7%), Biofruit® (5%) and ANAMED®
are harmful to both species based on reduction of
>96% in the parasitism capacity of T. pretiosum and
100% mortality for C. externa. Toxic baits composed
by the aforementioned attractants with the insecticide
spinosad added, and the commercial bait Success
® 0.02 CB are harmful to T. pretiosum, with reductions
on parasitism capacity higher than 87%. However,
these baits are relatively selective to C. externa
adults, with mortality ranging from 23 to 60%. Conclusion
? Based on the obtained results, toxic baits
with spinosad are more selective to predators and
considered a more ecofriendly option for integrated
fruit flies management.

Palavras-Chave: | biological pest control; Brazil; food attractants; fruit flies management.
Categoria do assunto: | O Insetos e Entomologia
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_42538.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (103499-1) - UPC - AP - DD -  -  -  - DIS