草履蚧在菊花脑上的危害及其生物学特性

Preliminary Report on the Effect of Drosicha corpulenta on the Damage and Bionomics of Chrysanthemum nankingense

草履蚧(Drosicha corpulenta)4～5月危害菊花脑(Chrysanthemum nankingense),危害严重地块,菊花脑有虫株率100%,虫口密度达2500头/百株以上.对菊花脑上草履蚧的防治提出了建议.

The occurrence, damage and bionomics of Drosw.ha corpuleraa on Chrysanthemum nanklngense were fwstly reported. Chrysanthemum nanklngense was damaged by Droswha corpuleraa from April to May, and the loss of the field yield would be serious, and the rate of plant damaged by insect ammounted to 100% averagely and the insect population density were beyond 2 500 per hundred plants. The control measures were put forward.