摘要
2000—2001年对马尾松不同龄级枝条及混合枝条饲养松褐天牛成虫的存活期及取食情况进行了研究。结果表明,不同龄级枝条对松褐天牛成虫存活期产生显著影响,混合枝条饲养平均存活期显著长于2年生枝条及3年生枝条饲养,而与当年生枝条饲养无显著差异。存活期的差异与取食密切相关,当年生枝条饲养具有最大的日均取食量,并极显著地大于2年生枝条饲养和3年生枝条饲养的相应值。混合枝条与单龄级枝条饲养日均取食量均无显著差异。混合枝条饲养处理当年生枝条被食面积占取食总面积的55%以上,3年生枝所占比例不足20%。研究显示松褐天牛自然状态下从不同龄级枝条中获取所需物质,以当年生枝条为主;无选择单龄枝饲养时通过增加取食来尽可能满足物质需要。
To investigate the impacts of feeding materials on the adult life span of Monochamus alternatus, major vector of the fatal disease PWN, adult pine sawyers were reared with four kinds of feeding materials, namely mixed twigs, current year twig, two year old twig and three year old twig in Xiangshan, Zhejiang Province in 2001 Results showed that the Japanese pine sawyer fed with mixed twigs got the longest average life span When reared with nonselective twigs, the average life span shortened sharply with age of feeding twigs The changes of life span were highly related with the feeding behaviors Calculated as per beetle, current year twig got the largest feeding volume, which was remarkably bigger than those of two year twig and three year twig Calculated as per beetle per day, current year twig also got the biggest figure and remarkably larger than those of two year twig and three year twig However, feeding volume of mixed twigs was not remarkably different with any of the single year old twigs, which meant that when fed with single year old twig, the pine sawyer increased its feeding volume Feeding volumes of different year old twigs in the mixed twigs rearing showed that current year twig was the dominant feeding materials, more than 55% of the total volume, while the pine sawyer feeding on each year old twig simultaneously
出处
《林业科学研究》
CSCD
北大核心
2003年第1期69-74,共6页
Forest Research
基金
国家"九五"科技攻关子课题"松褐天牛综合防治技术研究"(96 005 04 03 01)部分内容
关键词
松褐天牛
成虫存活期
补充营养材料
Monochamus alternaus
adult life span
feeding materials
