浅谈苗圃用纱网防治金龟子的技术要点  

Discussiononthe Technique of Controlling Scarab with Gauze Net in Nursery

作　　者：梁小荣 时晓燕 李英爽 郭洪艳 董忠丽 LIANG Xiao-rong(Chifeng Forest and Grassland Protection and Development Center,Chifeng,Inner Mongolia 024050)

机构地区：[1]赤峰市森林草原保护发展中心,内蒙古赤峰024050

出　　处：《农业灾害研究》2021年第11期5-7,共3页Journal of Agricultural Catastrophology

摘　　要：金龟子是苗圃主要地下害虫之一,主要以幼虫(蛴螬)咬食苗木主、侧根,导致苗木整株死亡,严重时可使苗木绝收。相关部门连续多年采用多种防治方法(毒土、诱杀、苗床扎孔注药),均未能有效遏制蛴螬的为害。基于此,在试验苗圃对上一年蛴螬为害较重的苗床进行了纱网防治,并与其他防治方法进行对比,结果表明:当年设置纱网12个苗床,经调查,防治后的虫口密度由75头/m^(2)下降至2.7头/m^(2),防治有效率达96%。Scarab is one of the main underground pests in nursery. It mainly bites the main and lateral roots ofseedlings by larvae(grubs), resulting in the death of the whole seedling. In serious cases, the seedling can be out of production. Many control methods(poisonous soil, trapping and killing, hole pricking and drug injection in seedbed) have been used for many years,but they have failed to effectively curb the harm of grubs. In view of this situation, a comparative experiment of gauze control with other control methods was carried out in the experimental nursery on the seedbed seriously damaged by grubs in the previous year. In that year, 12 gauze seedbeds were set up. After investigation, the population density decreased from 75 heads/m^(2) to 2.7 heads/m^(2),and the control effective rate was 96%. It can be described as “catching all at once” and has received good control results.

关 键 词：金龟子 蛴螬 扎孔注药 毒饵诱杀 防治效率 

分 类 号：S763[农业科学—森林保护学]