摘要
研究探明了桃一点斑叶蝉Erythroneurasudra种群消长动态和空间分布型 ,结果表明 :该虫在桃园全年共出现 3个为害高峰 ,分别发生于 4月下旬、5月下旬和 8月上旬 ;该害虫在桃园中呈聚集型的负二项分布。讨论了适宜取样调查方法。
The popuation dynamics and spatial distribution pattern of Erythroneura sudra were studied.The results show that this pest causes three damage peaks in peach orchards each year.Its spatial distribution pattern fitted a negative binomial distribution and belonged to the aggregated pattern.Appropriate sampling techniques for this pest are proposed.
出处
《昆虫知识》
CSCD
北大核心
2003年第5期429-432,共4页
Entomological Knowledge
关键词
桃一点斑叶蝉
种群
消长动态
空间分布型
Erythroneura sudra, population dynamics, spatial distribution pattern
