4种化合物对荔枝蒂蛀虫的调控作用  

Toxicity and Behavioral Effect of the Main Components of the Plant Volatile Oil on Conopomorpha sinensis

作　　者：王少山[1,2] 梁广文[1] 曾玲[1] 黄寿山[1] 

机构地区：[1]华南农业大学昆虫生态研究室,广州510642 [2]石河子大学农学院植物保护系,新疆石河子832003

出　　处：《中国农学通报》2011年第31期269-273,共5页Chinese Agricultural Science Bulletin

基　　金：国家自然科学基金资助项目"荔枝害虫生态控制系统的结构与功能"(30471169)

摘　　要：在室内进行芳樟醇、薄荷酮、丁香酚和印楝素对荔枝蒂蛀虫成虫产卵驱避试验,同时研究化合物对荔枝蒂蛀虫卵的孵化和蛹的羽化过程的影响。在同一浓度下,对荔枝蒂蛀虫成虫产卵的驱避效果依次是丁香酚〉芳樟醇〉薄荷酮〉印楝素。对荔枝蒂蛀虫卵的调控试验表明：0.3%印楝素对荔枝蒂蛀虫卵不具有熏杀作用,而其触杀作用最好;其他化合物对荔枝蒂蛀虫卵均具一定的熏杀和毒杀作用;随着化合物浓度的增加,熏杀和毒杀作用增强。对荔枝蒂蛀虫蛹的毒杀作用试验表明：用纯化合物处理蛹时,蛹茧立刻胀起,边缘皱缩,2天后观察蛹体发黑,干缩死亡;稀释后的化合物处理蛹,蛹死亡率较低,仅为20.00%~26.70%。结果表明：芳樟醇、薄荷酮、丁香酚和印楝素对荔枝蒂蛀虫的不同虫态的发生均具有一定的抑制作用。Linalool,menthone,eugenol and azadirachtin were tested on the oviposition repellency effect on Conopomorpha sinensis indoor.The effect of the chemicals on the borer adult,egg hatching and pupa emergence were also studied.In the same concentration,the repellency effect sequence （from high to low） was eugenollinaloolmintazadirachtin.Experiments on the impact of the chemical on C.sinensis eggs showed that 0.3% azadirachtin did not have suffocating effect on litchi fruit borer eggs,but had best contact toxicity.The other 3 compounds had both suffocating effect and contact toxicity effect.The egg mortality increased when the chemical concentration increased.Experiments on the pupae of C.sinensis showed that pure compounds had significant effected on the pupa.After being treated with the pure compounds,the pupae cocoons immediately bulged,with the edge shrinking.Two days after treatment,the pupa became black,shrunk and died.But the diluted compounds had less effected on the pupae.The mortalities were only 20.00% to 26.70% after being treated with the diluted compounds.The results showed that linalool,menthol,eugenol and azadirachtin had certain inhibitory on the occurrence of different instars of C.sinensis had to some extent.

关 键 词：荔枝蒂蛀虫 芳樟醇 薄荷酮 丁香酚 印楝素 调控作用 

分 类 号：Q96[生物学—昆虫学] S4[农业科学—植物保护]