摘要
连续2年对松褐天牛成虫进行饲养试验，对松材线虫病树侧枝的成虫进行取食痕调查，结果表明，成虫的平均取食量162mm2·头-1·d-1,♀♂性别间无显著性差异；取食量自初始取食至性成熟逐日增加，至产卵期达最大食量，并保持这一水平上下波动；成虫取食对树种和枝龄都有明显的选择性；对本试验供试树种的选择性顺序是火炬松＞马尾松＞雪松＞黑松＞湿地松＞金钱松；对枝龄的农食选择性表现为在5月下旬前当年新枝不是主要的取食枝，至5月底才明显主要取食当年生枝。在松材线虫病树上成虫的取食痕数和面积的枝龄分布很分散，自当年新枝至13年生枝都能被取食。
2- years feeding test on Monochamus alternatus adult and investigations on feedingtrace of adult in diseased lateral branch by Bursaphenchus xylophilus resulted that the averagecapacity of eating of adult was 162mmw/adult/day, there was no diffErence between male andfemale. The capacity of eating increased from the begining of eating to sex maturation, toppedat spawning time and stabled. Adult feeding hod evident preference of tree species and branceage. Tested tree species preference was: Pinus taeda> P. massoniana>Cedrus deodara>P. thunbergii> P. elliottii> Psecdolarix amabilis. Preference of branch was current year's by theend of May. Diseased branch by Bur. xylophlius varied in trace and area.
出处
《浙江林业科技》
北大核心
1998年第2期44-48,共5页
Journal of Zhejiang Forestry Science and Technology
关键词
松褐天牛
取食选择性
松材线虫病
松树
害虫
Monochamus alternatus adult
preference of feeding
Bursaphenchus xylophilus
