The Test Of Components Which Trap Helicoverpa Armigera And The Design Of Constitute

It is an important way to control Helicoverpa armigera that witheredblack poplar branch trapping Helicoverpa armigera. The volatiles from the withered leavesof black poplar,the scents of male Helicoverpa armigera and the compounds from flowerwere were tested in the field. And the constitute were designed. The main results are asfollows. The effects of volatiles from the withered leaves of black poplar were checked in thefield. The withered leaves of black poplar bundle could attract moths because of thevolatiles. The 2-hydroxy-benzaldehyde and the eugenol could repulse the moths. Theattracting effect of the benzaldehyde and the benzyl alcohol were weak. The hyacmthinand the phenylethyl alcohol attracted more moths. The amount of moth caught by theconstitute not containing the 2-hydroxy-benzaldehyde and the eugenol was larger thanthe constitute containing the 2-hydroxy-benzaldehyde and the eugenol and is two timeslarger than the amount of moths trapped by the withered leaves of black poplar bundle.The mechanism of attracting insects of the withered leaves of black poplar bundle wasknew more. The scent of Helicoverpa armigera in the field was assayed through two ways. Somecompounds are similar to the scent of other moths. The mixture of the methylparaben andcoumarin can attract the Helicoverpa armigera in olfactory but the mixture almost could nottrap moth in the field. 3,4-dimethyl benzaldehyde elicit the strong EGA response. Benzoicacid 4-ethoxy ethy ester elicit the weak EGA response. Botha lmost could not trapped moths. The compounds from perfume of the flower were tested. The sample containingacetic acid benzyl ester could trap more moths. The constitute AB trapped the most moths and the amount of moths trapped was 706.The constitute AB contained the compounds which attracting effect were strong.