Efficacy of insecticides in fruit borer control and residues on sugar apple fruit

Author:

Oliveira Alessandro da Silva1,Castellani Maria Aparecida2,Moreira Aldenise Alves2,Nascimento Antônio Souza do3,Azevedo Mateus Silva2,Oliveira Vitoriano Gusmão2

Affiliation:

1. Agência Estadual de Defesa Agropecuária da Bahia, Brazil

2. Universidade Estadual do Sudoeste da Bahia, Brazil

3. EMBRAPA/CNPMF, Brazil

Abstract

ABSTRACT Bahia is the Brazilian state with the largest production of sugar apple fruits (Annona squamosa L.), and fruit borer (Cerconota anonella, Sepp. 1830) is a key crop pest. Insecticides are the main strategy for pest control even though there are no pesticides registered for this crop. This study aimed to assess the efficacy of insecticides to control fruit borer and determine the levels of insecticide residues in sugar apple fruits aiming at requesting the extension of authorization to use insecticide products in this crop. The experiment was conducted in an eight-year-old irrigated orchard (2 × 4 m) located in Anagé, Bahia, Brazil. The experimental design was a randomized block design with 10 treatments (three insecticides with three doses and a control with water) and 5 replications. Each plot was composed of four plants but only the two central ones were assessed. Insecticides and doses (g a.i. 100 L−1 water) were Bacillus thuringiensis: 0.8, 1.7, and 2.5; triflumuron: 2.4, 3.6, and 4.8; and imidacloprid: 4.0, 10.0, and 16.0. Nine sprayings were carried out at fortnightly intervals with a costal sprayer with constant pressure, JA-2 nozzle, and with jet directed to the fruits. Ten assessments were performed in order to observe fruit borer presence in 30 previously marked fruits per plot. Imidacloprid, at the highest studied dose, was the only effective treatment. Analyses of imidacloprid residues, at 21 and 30 days after the highest dose application, indicated levels higher than the maximum limit allowed. Insecticides under the conditions tested do not meet the norms for requesting the extension of authorization to use insecticides for citrus in sugar apple fruits.

Publisher

FapUNIFESP (SciELO)

Subject

General Agricultural and Biological Sciences,General Veterinary

Reference25 articles.

1. Available,2012

2. Instrução técnica para o cultivo da ateira;Araújo Filho GC,1998

3. Biologia, danos e táticas de controle da broca-da-polpa das anonáceas;Bittencourt MAL;Revista Bahia Agrícola,2007

4. Pragas de fruteiras tropicais de importância agroindustrial;Braga Sobrinho R,1998

5. Danos causados por insetos em frutos e sementes de araticum (Annona crassiflora Mart.,1841) no cerrado de Goiás;Braga Filho JR;Jornal de Biociência,2007

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3