无公害杀虫剂对红早酥梨虫害防治效果研究  

Effect of Non-pollution Insecticides on Pest Control of Red Early Crisp

作　　者：张心和 Zhang Xinhe(Forest Disease and Pest Control Station in Ganzhou District,Zhangye 734000,Gansu,China)

机构地区：[1]张掖市甘州区林木病虫害防治站,甘肃张掖734000

出　　处：《绿色科技》2024年第7期173-176,共4页Journal of Green Science and Technology

摘　　要：为分析无公害杀虫剂对红早酥虫害的具体防治效果,选择甘肃省张掖市甘州区红早酥梨研究样地进行试验分析,测定5种无公害杀虫剂对红早酥梨虫害的防治效果,设置6个处理,分别是22.4%螺虫乙酯悬浮剂3000倍、1.8%阿维菌素乳油2000倍、5%氯虫苯甲酰胺悬浮剂2500倍、45%噻虫啉悬浮剂6000倍、22.4%螺虫乙酯悬浮剂3000倍+5%氯虫苯甲酰胺2500倍、和空白对照,试验结束后分析了防治效果。结果表明:试验期间,各药剂应用相对安全可靠;梨木虱防治效果分析可知,1、2、3处理用药后3 d和用药后7 d的药效明显,用药后15 d和20 d的药效逐渐递减,22.4%螺虫乙酯悬浮剂3000倍+5%氯虫苯甲酰胺2500倍长期防治效果优于其他处理;梨小食心虫防治效果分析可知,22.4%螺虫乙酯悬浮剂3000倍+5%氯虫苯甲酰胺2500倍不同给药阶段的虫口减退率和防治效果优于其他药剂(P<0.05),在用药15d药效达到顶峰;蛀果数和蛀果率分析可知,处理5的蛀果数最少,蛀果率最低,均低于其他处理(P<0.05)。对于红早酥常见虫害,2.4%螺虫乙酯悬浮剂3000倍+5%氯虫苯甲酰胺2500倍防治效果最佳。This paper analyzes the specific control effect of non-pollution insecticides on red early crisp insect pest.The study site of red early crisp pear in Ganzhou District,Zhangye City,Gansu Province was selected for experimental analysis,and the control effect of 5 kinds of non-pollution insecticides on red early crisp pear pest was determined.They were 22.4%spirulin ethyl ester suspension 3000 times,1.8%abamectin cream cream 2000 times,5%chloranthracide suspension 2500 times,45%thiacloprid suspension 6000 times,22.4%spirulin ethyl ester suspension 3000 times+5%chloranthracide suspension 2500 times,and blank control,respectively.The control effect was analyzed after the test.During the test,the application of each drug was relatively safe and reliable.Analysis of the control effect of pear psyllid showed that the efficacy of treatments 1,2 and 3 were obvious at 3 and 7 days after treatment,and gradually decreased at 15 and 20 days after treatment.The long-term control effect of 22.4%Spirospira ethyl ester suspension 3000 times+5%chlorfenamide 2500 times was better than other treatments.The effect analysis showed that the pest reduction rate and control effect of 22.4%spirulus ethyl ester suspension 3000 times+5%chlorobenzamide 2500 times at different administration stages were better than other agents(P<0.05),and the effect reached the peak at 15d of administration.The analysis of the number of caries and the rate of caries showed that treatment 5 had the lowest number of caries and the lowest rate of caries,both lower than other treatments(P<0.05).For the common insect pest of red early crisp,the best control effect is 2.4%spirospira ethyl ester suspension 3000 times+5%chlorobenzamide 2500 times.

关 键 词：无公害杀虫剂 红早酥 梨木虱 螺虫乙酯悬浮剂 

分 类 号：S436[农业科学—农业昆虫与害虫防治]