Effect of dimethoate in controlling Monolepta hieroglyphica (Motschulsky) and its distribution in maize by drip irrigation

被引：19

作者：

Zheng, Feng ^{[1
,2
]}

Jiang, Hui ^{[1
,2
]}

Jia, Jinliang ^{[1
,2
]}

Wang, Ruifei ^{[1
]}

Zhang, Zhixiang ^{[1
,2
]}

Xu, Hanhong ^{[1
,2
]}

机构：

[1] South China Agr Univ, Minist Educ, Key Lab Nat Pesticide & Chem Biol, Guangzhou 510642, Guangdong, Peoples R China

[2] South China Agr Univ, State Key Lab Conservat & Utilizat Subtrop Agrobi, Guangzhou, Guangdong, Peoples R China

来源：

PEST MANAGEMENT SCIENCE | 2020年 / 76卷 / 04期

基金：

中国国家自然科学基金;

关键词：

dimethoate; drip irrigation; maize; control; Monolepta hieroglyphica; USE EFFICIENCY; COTTON; SOIL; WATER; DISSIPATION; PESTICIDE; XINJIANG; YIELD; CLOTHIANIDIN; PRODUCTIVITY;

D O I：

10.1002/ps.5670

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

BACKGROUND Monolepta hieroglyphica (Motschulsky) is a primary pest of maize. The effect of dimethoate on controlling a M. hieroglyphica infestation was studied using drip irrigation. Field trials were conducted to determine the most effective application rate and water volume for dimethoate treatment in arid and semi-arid regions. The absorption, distribution and dissipation of dimethoate in maize and soil were examined. RESULTS Field trials showed that dimethoate at a rate of 2.70 kg a.i. ha(-1) and water volume of 200 m(3) ha(-1) was the most effective treatment for controlling M. hieroglyphica. Dimethoate via drip irrigation showed longer persistence than dimethoate applied via artificial or unmanned air vehicle spraying. Different parts of the maize plant had a hysteresis effect on dimethoate absorption. Dimethoate was absorbed from the roots, transported upward, and enriched in the leaf. Dimethoate was mainly concentrated within a certain range near the emitter after drip irrigation. Terminal residues of dimethoate in maize grain were below detectable levels 42 days after treatment. CONCLUSIONS Dimethoate treatment via drip irrigation can control M. hieroglyphica infestation on maize. Results showed that dimethoate is safe for maize and the environment. This study provides guidance for the application of pesticides in arid and semi-arid areas. (c) 2019 Society of Chemical Industry

引用

页码：1523 / 1530

页数：8

共 36 条

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