Quadraspidiotus gigas is a main kind of forest pest in Northeast China.Chilocorus kuwanae has a strong capability of controlling Quadraspidiotus gigas. Chilocorus kuwanae was mi grated and released for control of Qua...Quadraspidiotus gigas is a main kind of forest pest in Northeast China.Chilocorus kuwanae has a strong capability of controlling Quadraspidiotus gigas. Chilocorus kuwanae was mi grated and released for control of Quadraspidiotus gigas during 1992-93. The obvious conrol effect was obtained.展开更多
Homalotglus flaminus (Dalman) is an important natural enemy of the Chilocorus kuwanae. Its biological character-istic, life history, the action style on hosts were studied at Hongqi Forest Farm, Daqing City, Heilongji...Homalotglus flaminus (Dalman) is an important natural enemy of the Chilocorus kuwanae. Its biological character-istic, life history, the action style on hosts were studied at Hongqi Forest Farm, Daqing City, Heilongjiang Province from June 1998 to October 2000, in order to control H. flaminus and raise the control ability of Chilocorus kuwanae to Quadraspidiotus gigas pest. The observed results indicated that H. flaminus has two generation one year in study area, the pupating span is 12.7 d, life span of females and males is 17.6 d and 10.8 d respectively, egg span is 10 d, and the sex ratio of females to males is 1:3.展开更多
文摘Quadraspidiotus gigas is a main kind of forest pest in Northeast China.Chilocorus kuwanae has a strong capability of controlling Quadraspidiotus gigas. Chilocorus kuwanae was mi grated and released for control of Quadraspidiotus gigas during 1992-93. The obvious conrol effect was obtained.
基金This paper was supported by Natural Science and Foundation of Heilongjiang Province.
文摘Homalotglus flaminus (Dalman) is an important natural enemy of the Chilocorus kuwanae. Its biological character-istic, life history, the action style on hosts were studied at Hongqi Forest Farm, Daqing City, Heilongjiang Province from June 1998 to October 2000, in order to control H. flaminus and raise the control ability of Chilocorus kuwanae to Quadraspidiotus gigas pest. The observed results indicated that H. flaminus has two generation one year in study area, the pupating span is 12.7 d, life span of females and males is 17.6 d and 10.8 d respectively, egg span is 10 d, and the sex ratio of females to males is 1:3.
