摘要
中黑盲蝽在苏北沿海地区1年发生4代,6月上旬一代成虫陆续迁进棉田繁殖为害,9月上旬第四代成虫相继迁出棉田产卵越冬,发生和为害程度受基数、气候、食料、生境、天敌因素的影响,上代残留量与下代发生量、早春气温与越冬卵孵化、6月份雨量与为害程度、植株含氮量与发生程度、棉田郁闭度与为害度等均呈极显著的正相关关系。研究表明,该虫的防治指标为二、三、四代百株虫量分别达到10、15、22头时开始施药,防治适期为二至三龄若虫高峰期。
The effects of the lst generation density,weather,food condition,habitat,and natural enemies on the occurrence of black-striped leafbug Adelphocoris suturalis Jakovlev in northern coastal reclamation area
of Jiangsu Province were investigated.Field experiments with cagedplots inoculated with different densities of 3rd-instar nymphs wereconducted to determine the relationship between insect density and dam-age extent;and the action thresholds of 2nd-,3rd-,and 4th gener-ations and optimum spraying times of this insect were then proposed.
The control strategy as so called“to inhibit the beginning and theend,and to control the middle”was dis discussed.
出处
《植物保护学报》
CAS
CSCD
北大核心
1991年第2期147-153,共7页
Journal of Plant Protection
关键词
中黑盲蝽
发生规律
防治
苏北
棉花
Adelphocoris suturalis
bionomics
control strategv
