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西花蓟马对不同处理菜豆及其挥发物的行为反应

张骏,郅军锐**,杨广明   

  1. (贵州大学昆虫研究所, 贵州山地农业病虫害重点实验室, 贵阳 550025)
  • 出版日期:2015-02-07 发布日期:2015-02-07

Behavioral responses of Frankliniella occidentalis to kidney bean plants and their volatiles under different treatments.

ZHANG Jun, ZHI Jun-rui**, YANG Guang-ming   

  1. (Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Institute of Entomology, Guizhou University, Guiyang 550025, China)
  • Online:2015-02-07 Published:2015-02-07

摘要: 利用Y型嗅觉仪比较了西花蓟马雌成虫对健康、机械损伤、西花蓟马若虫为害、西花蓟马成虫为害、外源茉莉酸和水杨酸甲酯诱导的6种不同处理菜豆的行为反应差异,并测定了西花蓟马对8种挥发物标样在不同浓度下的行为反应。结果表明:西花蓟马对不同处理菜豆的反应不同,与干净空气相比,外源茉莉酸与水杨酸甲酯诱导的菜豆对西花蓟马有明显的驱避作用,而其他处理的菜豆与空气之间没有明显的差异;健康菜豆和机械损伤菜豆对西花蓟马的吸引作用明显高于其他处理的菜豆;在健康菜豆和机械损伤菜豆的组合中,西花蓟马并未表现出明显的偏好性;外源茉莉酸和水杨酸甲酯诱导处理的菜豆与其他处理的菜豆相比对西花蓟马均具有显著的驱避作用,但前者对西花蓟马的驱避作用明显弱于后者;8种挥发物单体(10-1~10-5 μL·μL-1,浓度以10倍递减)对西花蓟马的行为反应显示,叶醇不论在何种浓度下始终对西花蓟马有明显的引诱作用,α蒎烯、1-辛烯-3-醇、乙酸叶醇酯和异戊醇则是分别在10-2~10-5、10-4~10-5、10-4~10-5、10-3 μL·μL-1时,才具有显著的引诱作用,叶醛、环戊醇和异戊醛分别在10-1~10-3、10-1~10-4、10-4 μL·μL-1浓度下对西花蓟马具有强烈的排斥作用。

关键词: 棉花, 时空分布, 纤维品质, 趋势分析

Abstract: By using the Ytube olfactometer in the laboratory, the behavioral responses of Frankliniella occidentalis female adults were studied to kidney bean plants and 8 typical volatile chemicals induced by healthy plants (CK), mechanical damage (MD), thrip nymph feeding (DFNF), thrip adult feeding (DFAF), exogenous jasmonic acid (JA) and methyl salicylate (MeSA). The results showed that F. occidentalis had different responses to kidney bean plants with different treatments. Compared to clean air (A), the kidney bean plant induced by JA and MeSA had stronger repellency to F. occidentalis, while F. occidentalis didn’〖KG-*9〗t show significant response to other treatments. F. occidentalis responded more significantlyto healthy plants (CK) and MD than to other treated plants, but the preference of F. occidentalis had no significant difference between CK and MD. Kidney bean plants induced by JA and MeSA had stronger repellency to F. occidentalis than other treated plants, and the effect of JA was less than MeSA. Among 8 standard chemical samples tested, (Z)3-Hexenol always showed a strong attraction to F. occidentalis at 5 concentration levels. α-Tetpinolene, 1-Octen-3-ol, (Z)-3-Hexenyl acetate and Isopentanol showed strong attractions to F. occidentalis just at certain concentrations. However, (Z)-3-Hexenal, Cyclopentanol and 3-methylButanal displayed repellency to F. occidentalis at 10-1-10-3, 10-1-10-4, 10-4 μL·μL-1 concentrations, respectively.

Key words: cotton, spatial and temporal distribution, trend analysis, fiber quality