摘要
研究了烟粉虱在黄瓜上的经济损害水平和经济阈值。黄瓜幼苗4叶期时,烟粉虱的经济损害水平为9. 315 9%;烟粉虱的经济阈值为每株黄瓜有烟粉虱成虫18. 447 4头,即平均每片黄瓜叶有成虫4. 611 9头。
The experiment was conducted to estimate the economic injury level (EIL) and economic threshold (ET) of B. tabaci. When the cucumber plant grew into the 4-leaf stage, the EIL of B. tabaci was 9.3159%; the ET of B. tabaci was about 18.4474 adults/plant, or 4.6119 adults/leaf.
出处
《江西农业大学学报》
CAS
CSCD
北大核心
2005年第2期234-237,共4页
Acta Agriculturae Universitatis Jiangxiensis
基金
"十五"国家攻关资助项目(2001BA509B0604)
关键词
经济损害水平
经济阈值
烟粉虱
黄瓜
economic injury level
economic threshold
Bemisia tabaci
cucumber
