小麦吸浆虫发生与小麦产量损失间的关系

Relationship between Wheat Yield Loss and Wheat Midge,Sitodiplosis mosellana(Géhin)

通过调查小麦吸浆虫春季越冬幼虫基数、成虫发生量、穗部幼虫数量与小麦产量损失间的关系,旨在寻找一种简便有效的小麦吸浆虫危害对小麦产量影响的评估方法。结果发现,小麦吸浆虫成虫发生总量与小麦产量损失有一定的线性关系,可以通过在小麦吸浆虫成虫发生期设置黄板监测成虫发生量的方法估计其对小麦产量的影响,并在必要时及时采取防治措施,以免因小麦吸浆虫的发生对小麦生产造成严重危害。

The relationship between wheat yield loss and number of unearthed larvae of wheat midge,Sitodiplosis mosellana,adults and larvae in ears of wheat was investigated in this experiment,to find a better method to estimate yield loss of wheat by monitoring S.mosellana.There was a regression relationship between yield loss of wheat and number of adults of S.mosellana.So yield loss of wheat can be estimated by using yellow sticky trap on the stage of adults in field.Some measures can be taken to decrease the loss.