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星天牛成虫的取食节律及对两种苦楝粗提物行为趋性

彭瀚,刘亚宁,耿显胜,方林鑫,张守科,张威,舒金平*,王浩杰   

  1. (中国林业科学研究院亚热带林业研究所, 杭州 311400)
  • 发布日期:2020-04-10

Feeding rhythm of Anoplophora chinensis (Coleoptera: Cerambycidae) adults and their behavioral responses to two kinds of crude extracts from Melia azedarach.

PENG Han, LIU Ya-lin, GENG Xian-sheng, FANG Lin-xin, ZHANG Shou-ke, ZHANG Wei, SHU Jin-ping*, WANG Hao-jie   

  1. (Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China).
  • Published:2020-04-10

摘要: 星天牛(Anoplophora chinensis Forster)是林业上危害性极大的一种蛀干害虫,行为调控是控制星天牛的重要手段。为了研发星天牛成虫植物源诱杀剂,观测了星天牛的取食行为节律,通过Y型嗅觉仪行为生测、笼养法选择趋性试验及林间诱捕试验测定了不同苦楝粗提物对星天牛成虫的引诱效果。结果表明:星天牛成虫在光照及黑暗条件下(光周期15L∶9D)均存在取食行为,且两种条件下的取食量差异不显著(P>0.05);在光照条件下,雌成虫取食高峰出现在13:00—14:30,雄成虫无明显的取食高峰期。在室内,索式抽提法所得粗提物对星天牛成虫引诱效果较好,星天牛在经索式抽提法所得粗提物处理的滤纸上的平均停留时间(15.19±2.09 min)显著长于水蒸气蒸馏法所得粗提物(8.94±1.26 min, P<0.05);两种粗提物在林间均诱捕到星天牛成虫,其中索式抽提法所得粗提物平均每个诱捕器诱到2.0±0.58头,水蒸蒸馏气法所得粗提物平均每个诱捕器诱到3.0±1.15头,二者差异不显著(P>0.05)。

关键词: 景观格局, 驱动力, 厦门市, 不透水面, 坡度梯度

Abstract: Anoplophora chinensis Forster is one of the most serious wood-boring pests. Behavioral manipulation is an important way to control the beetle. Aiming to develop an effective “attract and kill” strategy with plant-derived attractant against the beetle, feeding behaviors ofA. chinensis adultswere observed and the alluring effects of different kinds of extracts of Melia azedarach L. were examined. The results showed that feeding behavior ofA. chinensis existed both in the light and dark (15L∶9D), with no significant difference in feeding consumption between light and dark (P>0.05). In the light, peak feeding period of female adult A. chinensis was from 13:00 to 14:30, but there was no feeding peak of the male. In the laboratory, crude oil by Soxhlet extraction was more attractive to adult A. chinensis than that by steam distillation. Adult A. chinensis settled significantly more time on the filter paper treated with crude oil by Soxhlet extraction (15.19±2.09 min) than that treated with crude extract by steam distillation (8.94±1.26 min, P<0.05). Adult A. chinensis could be trapped by both extracts in forests. There was no significant difference between the number of beetles trapped by the two kinds of extracts (P>0.05), with 3.0±1.15 beetles being captured with the crude oil by Soxhlet extraction per trap and 2.0±0.58 adults being captured with the crude extract by steam distillation per trap.

Key words: landscape pattern, driving force, Xiamen City, impervious surface, slope gradient