Response of female Cydia molesta (Lepidoptera: Tortricidae) to plant derived volatiles
Response of female Cydia molesta (Lepidoptera: Tortricidae) to plant derived volatiles
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DOI：
10.1079/ber2003250
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发表时间：
2003-07-01
影响因子：
1.9
通讯作者：
Dorn, S
中科院分区：
文献类型：
--
作者：
Natale, D;Mattiacci, L;Dorn, S
在双重选择竞技场中，桃梢挥发物对交配后的东方梨小食心虫Cydia molesta（Busck）具有引诱作用。没有偏好之间观察到叶气味的主要寄主植物，桃，和次要寄主植物，苹果。采用气相色谱-质谱联用技术从桃叶顶空挥发物中鉴定出22种化合物。绿色叶挥发物占挥发物总量的50%以上。使用不同的吸附剂聚合物的生物测定辅助分馏表明具有6-8个碳原子的链长的化合物的引诱剂效应。单独或组合测试该馏分的主要化合物对雌性动物的行为反应。发现（Z）-3-己烯-1-基乙酸酯、（Z）-3-己烯-1-醇和苯甲醛以4：1：1比例的三组分混合物具有显著的生物活性。这种合成混合物引起了类似的引诱剂的效果，从桃树以及生物活性级分的完全天然共混物。
Peach shoot volatiles were attractive to mated female oriental fruit moth, Cydia molesta (Busck), in a dual choice arena. No preference was observed between leaf odours from the principle host plant, peach, and the secondary host plant, apple. Twenty-two compounds were identified in headspace volatiles of peach shoots using gas chromatography-mass spectrometry. Green leaf volatiles accounted for more than 50% of the total emitted volatiles. A bioassay-assisted fractionation using different sorbent polymers indicated an attractant effect of compounds with a chain length of 6-8 carbon atoms. The major compounds of this fraction were tested either singly or in combinations for behavioural response of females. Significant bioactivity was found for a three-component mixture of (Z)-3-hexen-1-yl acetate, (Z)-3-hexen-1-ol and benzaldehyde in a 4:1:1 ratio. This synthetic mixture elicited a similar attractant effect as the full natural blend from peach shoots as well as the bioactive fraction.