烟田长瓣树蟋种群发生消长与气象因素的关系

Relationship between population dynamics of Oecanthus longicaudaMatsumurd and meteorolgical factors

通过田间调查和分析得出：长瓣树蟋于６月中旬开始在烟田内发生，至９月上中旬消失。主要取食上部叶片而形成孔洞和缺刻。种群消长呈双峰型，小峰在７月上中旬出现，主峰在８月上中旬出现，种群数量与温度呈正相关，与降水量呈负相关，湿度的变化对种群数量消长有一定影响。

オ玂ecanthus longicauda Matsumurd appeared in the middle of June and disappeared in early September in tobacco leaves that Oecanthus longicauda Matsumurds have eaten.There were two Oecanthus longicauda Matsumurd appearing or disappearing peaks.The first peak appeared in the early,middle of July and the main peak appeared in the early middle of August.The result showed that relations between the increase or reduction of its genus quantity and temperature wers showing no difference as curve,but varied with precipitation.The change of humidity also influenced the genus quantity.