3种不同药剂对玉米二点委夜蛾的防治效果评价  

Evaluation of the Control Effects of Three Insecticides on Proxenus lepigone (Moschler)

作　　者：李梦瑶[1] 刘雨欣 张亚南[1] 葛亚菲 苑士涛[1] 魏国树[1] LI Meng-yao;LIU Yu-xin;ZHANG Ya-nan;GE Ya-fei;YUAN Shi-tao;WEI Guo-shu(College of Plant Protection,Hebei Agricultural University,Baoding 071000,Hebei,China)

机构地区：[1]河北农业大学植物保护学院,河北保定071000

出　　处：《农药》2021年第7期540-542,共3页Agrochemicals

摘　　要：[目的]通过田间试验,选择防控玉米二点委夜蛾效果较好的药剂,并确定施药时期、用量和方法。[方法]选择5%甲氨基阿维菌素苯甲酸盐微乳剂、18.7%氯虫·高氯氟悬浮剂、0.7%噻虫胺·氟氯氰菊酯颗粒剂3种药剂,采用喷雾处理和撒施法检测对玉米出齐后对二点委夜蛾的杀灭效果,并进行田间试验。[结果]5%甲氨基阿维菌素苯甲酸盐微乳剂防治玉米二点委夜蛾,药后14 d防效均达到91%以上。18.7%氯虫·高氯氟悬浮剂,药后14 d防治效果均在92%以上。0.7%噻虫胺·氟氯氰菊酯颗粒剂,药后14 d,防治效果均达到94%以上。[结论]玉米苗出齐之后,防控二点委夜蛾卵孵化盛期或低龄幼虫期,0.7%噻虫胺·氟氯氰菊酯颗粒剂防治效果最好,18.7%氯虫·高氯氟悬浮剂和5%甲氨基阿维菌素苯甲酸盐微乳剂在防治时也可以进行交替使用,对玉米生长、有益天敌种类和数量等无不良影响。[Aims] The paper aims to screen out the best insecticide for control of Proxenus lepigone and then to determine its application period, dosage and method through field trials. [Methods] 3 Kinds of agents, such as emamectin benzoate 5% emulsion, thiamethoxam and cypermethrin 0.7% granules, chlorantraniliprole·lambda-cyhalothrin 18.7% suspending agent were selected to conduct field trials by spraying and siew rzutowy method to detect their control efficacy after the emergence of corn. [Results] On 14 th day after treatment, the control effect of emamectin benzoate 5% emulsion was more than 91%;chlorantraniliprole·lambda-cyhalothrin 18.7% suspending agent was more than 92%, thiamethoxam and cypermethrin 0.7% granules was more than 94%. [Conclusions] After the emergence of corn seedlings, during the egg hatching period or the low larva period for the prevention and control of P. lepigone, thiamethoxam and cypermethrin0.7% granules has the best control effect, chlorantraniliprole·lambda-cyhalothrin 18.7% suspending agent and emamectin benzoate 5% emulsion can be used alternatively, and it is safe on corn growth and species and quantity of beneficial natural enemies.

关 键 词：二点委夜蛾 杀虫剂 田间防效 

分 类 号：S482.3[农业科学—农药学]