The occurrence and damage of Xylotrechus quadripes Chew were investigated in different time points and micro environments in Siman south island river coffee test demonstration field. The results showed that X. quadr/p...The occurrence and damage of Xylotrechus quadripes Chew were investigated in different time points and micro environments in Siman south island river coffee test demonstration field. The results showed that X. quadr/pes mainly damaged 5-year-old coffee trees. X. quadr/pes occurred one generation per year in Siman region, and the larval stage lasted 296 - 322 d. The adult could be found in four seasons because of different development progress and overlapping generations. In different micro environments, X. quadr/pes were mainly distributed in mixed forests and the coffee land in sunny slope. The adult enjoyed sunshine on the coffee trees at noon. The nattwal enemy Prislauacus nigripea kieff was found to parasitize in the larvae of X. quadripes, which could control the population of X. quadr/pes.展开更多
Based on the dynamic observation of Xylotrechus quadripes Chevrolat for consecutive three years, the living habits and damage status of X. quadripes in Dehong Prefecture, Yunnan Province were cleared, to provide the b...Based on the dynamic observation of Xylotrechus quadripes Chevrolat for consecutive three years, the living habits and damage status of X. quadripes in Dehong Prefecture, Yunnan Province were cleared, to provide the basis for its prevention and control. The results showed that the larvae and pupae of X. quadripes occurred from April to September in Dehong Prefecture;the adults occurred from September to November;the eggs occurred from December to March of the next year. Different measures could be adopted according to different periods, so as to achieve the best control effect.展开更多
基金Supported by Scientific Research Fund Project of Yunnan Department of Education(2014Y508)Project of Yunnan Department of Finance(YCJ[2013]212)Project of Pu’er University for Professional Gardening Talents
文摘The occurrence and damage of Xylotrechus quadripes Chew were investigated in different time points and micro environments in Siman south island river coffee test demonstration field. The results showed that X. quadr/pes mainly damaged 5-year-old coffee trees. X. quadr/pes occurred one generation per year in Siman region, and the larval stage lasted 296 - 322 d. The adult could be found in four seasons because of different development progress and overlapping generations. In different micro environments, X. quadr/pes were mainly distributed in mixed forests and the coffee land in sunny slope. The adult enjoyed sunshine on the coffee trees at noon. The nattwal enemy Prislauacus nigripea kieff was found to parasitize in the larvae of X. quadripes, which could control the population of X. quadr/pes.
文摘Based on the dynamic observation of Xylotrechus quadripes Chevrolat for consecutive three years, the living habits and damage status of X. quadripes in Dehong Prefecture, Yunnan Province were cleared, to provide the basis for its prevention and control. The results showed that the larvae and pupae of X. quadripes occurred from April to September in Dehong Prefecture;the adults occurred from September to November;the eggs occurred from December to March of the next year. Different measures could be adopted according to different periods, so as to achieve the best control effect.
