Ação inibidora do desenvolvimento de extratos formulados ricos em acetogeninas sobre Duponchelia fovealis

Ciencia Rural

article

Maria Aparecida Cassilha Zawadneak¹  Luana Jaras¹  Renata Rodrigues da Silveira¹  Ida Chapaval Pimentel¹  Daniel Bernardi²  Leandro do Prado Ribeiro³ 

[1] Universidade Federal do Paraná;Universidade Federal de Pelotas;Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina

关键词: Annona mucosa;    Annona sylvatica;    bioactivity;    botanical insecticides;   

DOI  :  10.1590/0103-8478cr20210247

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

Duponchelia fovealis (Zeller, 1847) is a new pest of strawberry crops worldwide. To develop alternative strategies for its management, we assessed the lethal toxicity and growth inhibitory action of formulations prepared from ethanolic seed extracts of pre-selected species of Annona (Annona mucosa Jacq., Annona muricata L., and Annona sylvatica A. St.-Hil.), which were previously characterized by their high content of annonaceous acetogenins. In addition, the extracts were compared to a limonoid-based bioinsecticide [Azamax® 1.2 EC (azadirachtin + 3-tigloil-azadiractol), positive control] on D. fovealis larvae. Aqueous emulsions prepared from ethanolic seed extracts of A. mucosa and A. sylvatica and a limonoid-based bioinsecticide had low lethal toxicity to D. fovealis larvae; nevertheless, they caused a pronounced inhibition of their larval development. Thus, the combined effects of lethal and sublethal toxicity of acetogenin-rich formulations and the limonoid-based commercial bioinsecticide may offer a route to new control strategies of D. fovealis in strawberry crops, especially in organic-based production systems.

【 授权许可】

Unknown