【摘要】 选取8个黄瓜品种,在温室内分区种植,观测烟粉虱在这些黄瓜上的时空种群动态。结果表明:烟粉虱在不同品种、不同高度上和不同时间内的虫量不一,差异显著。在中农19号和Deltastar上虫量最高,在春光2号、22-94RZ上虫量最低。烟粉虱发生高峰在黄瓜生长的中后期。植株的中上部虫量大于下部虫量;叶背虫量显著高于叶面虫量。更多还原

【Abstract】 We planted 8 cucumber strains in the greenhouse,and made an observation on spatio-temporal dynamics of B.tabaci on these plants.The results showed that the population density varied with different strains,height and time,and there were significant differences among them.The density of populations hosted on Zhongnong No.19 and Deltastar was the highest,and it turned out to be the lowest on Chunguang No.2 strain and 22-94RZ strain.In addition,we found that there had an outbreak period of the pest during the latter growing time of the cucumber.The pest population density in the top part was significant higher than that in the bottom part in the cucumber,and it was higher on the back of the cucumber leaves than that on the surface.更多还原