Bioactivity of neem oil on Alphitobius diaperinus (Coleoptera: Tenebrionidae) in stored peanut seeds

Revista Brasileira de Engenharia Agrícola e Ambiental

Lira, Amanda da S.²  Cunha, Laís C. da³  Almeida, Francisco de A. C.⁴  Azevedo, Aderdilânia I. B. de⁴  Almeida, Raul P. de¹ 

[1] Embrapa, Campina Grande;UFRPE, Recife;Associação Guajiru, Cabedelo;UFCG, Campina Grande

关键词: seeds storage;    pest insects;    Azadirachta indica    INTRODUÇÃO O amendoim produzido no Nordeste do Brasil representa;    aproximadamente;    5% da produção nacional (CONAB;    2007);   

DOI  :  10.1590/S1415-43662010000300011

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

This work aimed to evaluate the bioactivity of neem oil on Alphitobius diaperinus, in stored seed. Peanuts seeds, cultivar BRS Havana, were treated with neem oil at concentrations of 0.0, 1.0, 2.0, 3.0 and 4.0% (volume/weight) and kept in trays for 24 h. Fifty grams of seeds were put in plastic containers and infested with 20 adult insects of A. diaperinus. The mortality, the offspring number (larvae, pupae and adults) and the number of punched seeds were evaluated at 30, 60, 90 and 120 days of storage. For variance analysis of data, Friedman test (p £ 0.05) was used. Student Newman Keuls test (p £ 0.05) was used for comparison of means. The product efficiency was also analysed by using Henderson & Tilton (1955) method. Neem oil efficiency on the mortality of A. diaperinus above 74.92% was observed from 90 days of storing for concentrations of 3 and 4%. However, the neem oil conferred protection to peanut seeds in all concentrations and studied periods, by affecting all offspring of A. diaperinus of the F1 generation.

【 授权许可】

CC BY-NC