花椒三种跳甲的无公害防治研究

Three Kinds of Flea Beetle and its Pollution-free Control

花椒红胫潜跳甲(Podagricomela flavitibialis Wang)、花椒铜色潜跳甲(Podagricomela cuprea Wang)、花椒桔啮跳甲(Clites seiahatai Chuyo)三种跳甲都以成虫在花椒树冠下周围表土层7cm以内越冬。在花椒展叶后越冬成虫开始出土活动,4月下旬至5月中旬为产卵盛期孵化盛期,这一时期是药剂防治最关键时期。试验结果表明,花椒休眠期树冠下覆膜防治花椒三种跳甲效果显著,同时花椒树覆膜后抗旱保水、提高地温,也有明显的增产效果,且对环保无污染,安全可靠,操作简便,符合无公害农产品生产的技术要求。

Podagricomela flavitibialis,Podagricomela cuprea and Clites seiahatai,this 3 kinds of flea beetles will overwinter as adults in the soil from surface to 7cm deep under zanthoxylum-tree crown.After the leaf expansion of zanthoxylum,the overwintered adults become active and come out.From late April to mid-May is the eggs laying and hatching time.Chemical control is of the most importance in this peri-od.Plastic film covering surface soil under the dormant zanthoxylum-tree crown,is of remarkable effect in control of the 3 kinds of flea beetles.In the mean time,plastic film covering can also keep soil water,increase soil temperature and thus significantly increase yields and decrease environmental pollution,it＇s safety and reliable,easy to handle.It also meets the technical requirements of pollution-free agricultural products producing.