南京地区竹锈褐斑病的发生规律

竹锈褐斑病由螨类为害引起，笔者于2008年3月至2009年12月对南京地区竹锈褐斑病发生状况进行了调查。结果表明:该病主要危害3个属共12种竹种,病害的发生与竹林地被物、竹种生长状况、竹种和竹林环境状况有密切关系。7月上中旬发病达到高峰,7月下旬至8月上旬螨类种群数量下降；8至9月气温仍然较高,同时降雨量减少,虫口数量有所回升。螨类1年发生多代,世代重叠严重。

Study on occurrence and regularity of bamboo rust brown spot disease in Nanjing

China has the most abundant bamboo resources,and bamboo has been widely applied for landscaping and forest plantation.Bamboo rust brown spot disease had great impact on the value of bamboo.Through the survey of bamboo rust brown spot disease in Nanjing from March 2008 to December 2009,the disease primarily infected a total of 12 kinds of bamboo species that belonged to 3 genera.The occurrence of this disease was closely related to factors such as the plants under the crown of bamboo,bamboo growing status,bamboo species diversity and environmental conditions.The burst of disease reached to a peak from early to middle of July.Mite population declined during late July to early August.But during late August to early September,the temperature was still high while rainfall was reduced,mite population increased again.There were several generations in one year and the overlap of generations was very common.Based on the study,the occurrence and regularity of Schicotetranychus nanjingensis had been understood.This study supplied a desirable reference for controlling this disease.