假眼小绿叶蝉成虫在茶园中的活动规律研究

Study on Activity Rhythms of Adult Empoascavitis Gthe in Tea Plantations

通过粘虫板诱捕试验,研究了假眼小绿叶蝉(Empoasca vitis Gthe)成虫在茶园中的活动规律。结果表明:假眼小绿叶蝉成虫主要在茶树植株顶部上方0～40cm的范围内飞行,在粘虫板上边缘高于茶树植株顶部40cm高度处诱捕的成虫数量显著多于其它高度(P<0.01)。在东西南北各方位上的成虫诱捕量无显著差异(P>0.05)。成虫活动高峰期是在清晨和傍晚时分,5:00～9:00和15:00～19:00的诱捕量分别占全天诱捕量的49.06%和40.57%,成虫活动低谷期是夜间21:00～翌日4:00。

The activity rhythms of adult Empoascavitis Gthe was studied in tea plantations using by sticky traps.The results showed that adults preferred flying in a range of 0～40cm above the tea canopy.The number of trapped adults at the height of 40cm above the tea canopy was significantly more than at other heights（P0.01）.The number of adults trapped was not significantly different at different orientations（i.e.east,south,west and north）（P0.05）,which indicated that this pest did not have a particular orientation preference in fields.Adults were mainly active in the morning and evening,more specially,49.06%and 40.57% of adults were trapped from 5 ： 00 to 9 ： 00 and from 15 ： 00 to 19 ： 00 respectively,but inactive from 21 ： 00 to 4 ： 00 of the next day.