黄野螟绿色综合防治技术试验研究
Experimental Study on Green Comprehensive Control Technology of Heortia vitessoides
彭燕琼 1陈龙舟 1肖宁 1刘卫宏 1冼子耀 1古天一 1王祥1
作者信息
- 1. 茂名市林业科学研究所,广东 茂名 525000
- 折叠
摘要
在林间通过卵期释放广赤眼蜂、幼虫期释放广斧螳的措施进行黄野螟绿色综合防治技术试验.(1)绿色综合防治处理:在黄野螟卵期释放广赤眼蜂,每隔 3d释放 1 次,连续释放 3 次;在幼虫期释放广斧螳 6 龄若虫 1 次;(2)对照处理:幼虫期喷洒 5%氯氰菊酯 1000 倍液.处理后进行为期 4 个月的跟踪调查.结果表明:绿色综合防治处理的平均黄野螟幼虫虫口密度为 22.5 头/株,沉香树平均失叶率为 8.75%;与对照处理的平均黄野螟幼虫虫口密度 17.5 头/株和沉香树平均失叶率 5%相比,均无显著差异.释放广赤眼蜂和广斧螳的绿色综合防治黄野螟效果与喷洒化学药剂无异,且能有效减少农药用量,提升林地昆虫物种多样性.
Abstract
The green comprehensive control technology experiment of Heortia vitessoides was carried out in the field by releasing Trichogramma evanescens during H.vitessoides egg stage and Hierodula petellifera during the larval stage.The experiment treatment was to release T.evanescens once per three days for three consecu-tive times in total,and to release the sixth instar nymph of H.petellifera once.The controlled treatment was to spray a 1000-fold dilution of 5% cypermethrin during H.vitessoides larval stage.After a four-month follow-up survey,the results showed that the average population density of H.vitessoides larvae treated with green com-prehensive control was 22.5 per plant,and the average leaf loss rate of Aquilaria sinensis trees was 8.75%,which was not significantly different from the controlled treatment with an average larvae population density of 17.5 and an average leaf loss rate of 5% .The green comprehensive control of H.vitessoides by releasing T.e-vanescens and H.petellifera is not different from spraying chemical agents on control effect,and can effectively reduce the utilization of pesticides and improve the diversity of insect species in the field.
关键词
沉香树/黄野螟/绿色综合防治/效果Key words
Aquilaria sinensis/Heortia vitessoides/Green comprehensive prevention and control/Effect引用本文复制引用
出版年
2024
NETL
NSTL
万方数据