菜田套种玉米模式下亚洲玉米螟发生动态及为害  

Population Dynamic and Damage of Ostrinia Furnacalis in the Corn Fields Under the Condition of Vegetable Field Interplanting Spring Corn

作　　者：余金咏[1] 于泉林[1] 周印富[1] 

机构地区：[1]河北科技师范学院生命科技学院,河北秦皇岛066004

出　　处：《天津农业科学》2011年第1期120-123,共4页Tianjin Agricultural Sciences

基　　金：国家粮食丰产工程(200BAB02A08-9);唐山市科技研究与发展计划(07120205A-4)

摘　　要：为了弄清菜田套种春玉米模式下亚洲玉米螟发生规律和为害程度,于2007年6—8月对秦皇岛春玉米地玉米螟田间落卵量和为害玉米的程度进行了调查。结果表明,亚洲玉米螟在该地全年共发生两代,产卵高峰期分别发生在6月中旬和8月上旬,高峰期卵粒数分别达到712粒和344粒,田间花叶率、百株蛀茎孔数、蛀茎株率和蛀穗株率分别达到了58%、312个、90%、62%。Ostrinia farnacalis including number of eggs laid,damage degree of spring corn from June to August of 2007 in Qinghuangdao were investigated.The results showed that follows under the condition of vegetable field interplanting corn.The occurrence of the Aisan corn borer was two generation in the whole year.And peak stage of eggs laid was respectively occurred in the middle of June and the end of July early August,meanwhile,numbers of eggs masses were reached 712 and 344 separately.Furthermore, the first generation hatchability of Aisan corn borer,the first generation hatchability of Aisan corn bore the percentage of damage leaves,damage stems and maize ears were up to 58%,90%and 62%,respectively.The numbers of hole were up to 312 in the damage stems and corn eras by the Aisan corn borer.

关 键 词：亚洲玉米螟 发生动态 为害 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]