深圳市黄曲条跳甲发生调查及综合防治措施

Occurrence and control of Phyllotreta striolata(Fabricius)in Shenzhen

在深圳市宝安区、光明区、龙华区蔬菜种植基地对黄曲条跳甲发生危害情况进行全年大田监测调查、黄板诱集监测调查,比较了不同寄主植物受害情况,结果表明:黄曲条跳甲发生趋势呈现明显的双峰型,一个高峰期出现在2020年10—12月,其株受害率为40.4%~50.0%、百株成虫虫口密度为82.7~121.9头;另一个高峰期出现在2021年2—5月,其株受害率为55.5%~70.0%、百株成虫虫口密度为90.2~139.8头。不同寄主植物的株受害率和百株成虫虫口密度由高至低为:萝卜>白菜>芥菜>菜心,暂未发现该虫危害黄瓜、苦瓜、丝瓜、豇豆、四季豆、油麦菜。黄板诱集黄曲条跳甲成虫数量呈明显双峰型,一个高峰期出现在2020年12月,另一个高峰期出现在2021年2月,2020年8月、9月及2021年6—7月诱集成虫较少。

The occurrence of Phyllotreta striolata Fabricius were investigated in the vegetable planting base of Bao′an,Guangming and Longhua District in Shenzhen.The results showed that,the occurrence dynamic of Phyllotreta striolata(Fabricius)showed an obvious bimodal type.One peak was from October to December 2020,the average damage rate of host plant ranged from 40.4%to 50.0%and the average population density ranged from 82.7 to 121.9 adults per 100 plants.The other peak was from February to May 2021,the average damage rate of host plant ranged from 55.5%to 70.0%and the average population density ranged from 90.2 to 139.8 adults per 100 plants.The average damage rate and the population density of 100 adults per 100 plants of different host plants from high to low were as follows:Raphanus sativus>Brassica rapa ssp.pekinensis>Brassica juncea>Brassica rapa var.parachinensis.Cucumis sativus,Momordica charantia,Luffa cylindrica,Vigna unguiculata,Phaseolus vulgaris,Lactuca sativa were not found to be damaged.The number of adults dynamic showed an obvious bimodal type with yellow sticky trap method,one peak was in December 2020,the other peak was in February 2021.In August,September 2020 and June to July 2021,fewer adults were trapped.