Abstract
In a laboratory study the effect of three insecticides (pirimicarb, pymetrozine and spinosad) was evaluated on Aphelinus mali a parasitoid of woolly apple aphid. To investigate the contact effect, adults were caged for 16 hours in petri-dishes containing apple leaves sprayed with each insecticide. To determine the oral toxicity in the same period of time, other petri-dishes containing filter paper soaked in poisoned solution of 10% sugar were used. To determine the repellency effect of the insecticides in question, we used busvine Y shape tube and host choice experiment between treated and untreated leaf disks was carried out. The results revealed that the rate of mortality was 89.43 and 89.01% spinosad in contact and oral testes respectively. In the case of pymetrozine and in similar tests 78.85 and 62.72% mortality was observed. Moreover, spinosad and pirimicarb showed marked repellency effect on the adult stage of A.mali while pymetrozine didn’t show similar effect.
Sadeghi,G and .P,A . (2008). Study on the mortality and repellency effects of three insecticides on Aphelinus mali (Haldeman) (Hym.: Aphelinidae). (e26111). Journal of Iranian Plant Protection Research, 22(2), e26111 doi: 10.22067/jpp.v22i22.1056
MLA
Sadeghi,G , and .P,A . "Study on the mortality and repellency effects of three insecticides on Aphelinus mali (Haldeman) (Hym.: Aphelinidae)" .e26111 , Journal of Iranian Plant Protection Research, 22, 2, 2008, e26111. doi: 10.22067/jpp.v22i22.1056
HARVARD
Sadeghi G, .P A. (2008). 'Study on the mortality and repellency effects of three insecticides on Aphelinus mali (Haldeman) (Hym.: Aphelinidae)', Journal of Iranian Plant Protection Research, 22(2), e26111. doi: 10.22067/jpp.v22i22.1056
CHICAGO
G Sadeghi and A .P, "Study on the mortality and repellency effects of three insecticides on Aphelinus mali (Haldeman) (Hym.: Aphelinidae)," Journal of Iranian Plant Protection Research, 22 2 (2008): e26111, doi: 10.22067/jpp.v22i22.1056
VANCOUVER
Sadeghi G, .P A. Study on the mortality and repellency effects of three insecticides on Aphelinus mali (Haldeman) (Hym.: Aphelinidae). Journal of Iranian Plant Protection Research. 2008;22(2):e26111 (In Persian). doi: 10.22067/jpp.v22i22.1056
