Acta Entomologica Sinica (1997) 40, S61-S65

Zhongning Zhang, Xiuzhen Li, Yuling Fang, Jingong Xiangyu and Wenjun Geng (1997)
[Effect of volatiles of wheat secondary metabolites on the behaviour and electroantennogram of Helicoverpa armigera (Hubner)]
Acta Entomologica Sinica 40 (Supp.), S61-S65
Abstract: In this paper, the extracts of wheat flowers and wheat leaves (1000 g and 3200 g respectively) were drawn forth both by ethyl ether and steam distillation. The four samples were concentrated to two milliliters each by nitrogen. Activity of the extracts attracting cotton bollworm moths was tested by wind-tunnel and electroantennographic responses. In wind tunnel, the result showed that: (1) the volatile secondary metabolites from wheat flowers and wheat leaves possess attractive effect on cotton bollworm moths. The orientation rate were 45% to 72%, much higher than 22.2% of control, with significent difference by t test; (2) the orientation rates of females were higher than those of males; and (3) there were no significant difference between flowers and leaves.
On EAG test, the result showed that antenna of cotton bollworm strongly responsed to the extracts of wheat flowers and leaves with significent difference to the control. EAG response of male was slightly higher than that of female, and the EAG response of cotton bollworm to wheat flower extract was slightly higher than to leave extract.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Chinese)
Database assignments for author(s): Zhong-Ning Zhang

Research topic(s) for pests/diseases/weeds:
pheromones/attractants/traps

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Helicoverpa armigera	Wheat (Triticum)