摘要
【目的】明确0.61%二化螟性诱剂挥散芯对水稻二化螟的防治效果。【方法】设置不同诱芯投放密度和不同诱芯悬挂高度开展水稻二化螟诱集监测试验。【结果】在悬挂密度15~45枚诱芯/hm^(2)、悬挂高度1.2 m条件下,总诱虫量为238.50~548.50只/hm^(2),水稻枯心率为1.76%~0.96%,防治效果达69.54%~83.22%,其中45枚诱芯/hm^(2)处理极显著高于15枚诱芯/hm^(2)处理,与30枚诱芯/hm^(2)处理和对照药剂0.61%二化螟性诱剂挥散芯30枚诱芯/hm^(2)处理、200 g/L氯虫苯甲酰胺悬浮剂150 mL/hm^(2)处理差异不显著。【结论】诱芯悬挂高度对二化螟雄蛾的诱捕效果有一定影响,其悬挂高度在1.2~1.4 m的诱蛾量最高。0.61%二化螟性诱剂挥散芯防治二化螟的推荐使用剂量30~45枚诱芯/hm^(2),诱芯悬挂高度以1.2 m左右为宜。
[Objective]The field efficacy of sex attractant 0.61%AW on the male moth of Chilo suppressalis was clarified.[Method]The experiment of rice stem borer(Chilo suppressalis)trapping and detection was carried out by setting different density of lure core and different height of lure core suspension.[Result]That the total number of induced male moths ranged from 238.50 to 548.50 animals/hm^(2)at the lure densities of 15 to 45 traps/hm^(2)and a hanging height of 1.2 m.The proportions of wilt heart shoot ranged from 1.76%to 0.96%,the efficacy reached 69.54%~83.22%.Of these,the treatment of 45 traps/hm^(2)was significantly higher than that of 15 traps/hm^(2).There was no significant difference among the efficacies of sex attractant 0.61%AW with 30 traps/hm^(2),control pesticide sex attractant 0.61%AW with 30 traps/hm^(2),and chlorantraniliprole 200 g/L SC with 150 mL/hm^(2).[Conclution]The trap effect of the male moth was affected by the hanging height of the lure over the ground,with the highest amount of the trap moth ranging from 1.2 to 1.4 m.The recommended dosage of sex attractant 0.61%AW on the male moth of Chilo suppressalis is 30~45 traps/hm^(2),and the hanging height of the trap core is about 1.2 m.
作者
何昌成
梁宇轩
李保同
汤丽梅
石绪根
HE Changcheng;Liang Yuxuan;LI Baotong;TANG Limei;SHI Xugen(College of Land Resources and Environment,Jiangxi Agricultural University,Nanchang 330045,China;School of Agronomy Sciences,Jiangxi Agricultural University,Nanchang 330045,China)
出处
《生物灾害科学》
2023年第1期8-11,共4页
Biological Disaster Science
基金
江西省现代农业(水稻)产业技术体系(JXARS-04)。
关键词
二化螟
性诱剂
诱捕
防效
Chilo suppressalis
sex attractant
trap
field efficacy
