摘要
选取2块松材线虫病发生较为严重的松林,伐除枯死松树,选取具虫蛀为害特征的疫木伐桩,每地各10个,将其整个伐桩挖出,携回实验室解剖,收集害虫,并鉴定和统计虫种和数量。调查显示,为害疫木伐桩的蛀干害虫有松天牛[松墨天牛(Monochamus alternatus Hope)和松幽天牛(Asemum amurense Kraatz)]、马尾松角胫象[Shirahoshizopatruelis(Voss)]和松瘤象(Hyposipalus gigas Linnaeus)等多种害虫幼虫,其比率分别占96.0%、3.0%和0.7%,其它害虫占0.3%;伐桩地上部有松天牛、马尾松角胫象和松瘤象等多种蛀干害虫,占蛀干害虫总数的9.5%;地下根部仅有松天牛,占总数的90.5%。伐桩根部松天牛幼虫种群数量分布随深度增加逐渐递减,集中分布在0～60 cm之间。
Two heavy damaged pine forests by Pine Wilting Nematode （PWN） were selected, dead pine trees were lopped, 10 infested stumps with borer symptoms for each forest were digged out and dissected, borer pests inside were collected, identified and counted in the laboratory. The results showed that the borers in stumps were Monochamus altematus, Asemum amurense, Shirahoshizo patruelis, Hyposipcdus gigas, etc. with ratio 96.0%, 3.0% and 0.7%, other pests 0.3%, respectively. Monochamus alterncaus, Shirahoshizo patruelis and Hyposipalus gigas which consist of 9.5% of total pests were in the stumps above ground, only Monochamas alternatus that consists of 90.5% of total pests was found in the stumps underground. The number of larvae of Monochamus alternatus that gathered in the stumps of 0-60cm underground reduced with the increasing depth.
出处
《江西林业科技》
2009年第3期38-40,共3页
Jiangxi Forestry Science and Technology
基金
浙江省林业厅:罹病松木及残余物除害处理关键技术的研究
上虞市科技局:松材线虫病疫木伐桩除害处理药剂筛试验
关键词
松材线虫病
疫木伐桩
蛀干害虫
种类调查
Pine Wood Nematode
Diseased stumps
Borer pest
Species investigation
