Parasitism of mayetiola destructor diptera cecidomyiidae by platygaster hiemalis hymenoptera platygasteridae on hessian fly resistant wheats

Chen, B. H.; Foster, J. E.; Araya, J. E.; Taylor, P. L.

Parasitism of mayetiola destructor diptera cecidomyiidae by platygaster hiemalis hymenoptera platygasteridae on hessian fly resistant wheats

Journal

Journal of Entomological Science

Journal Volume

26

Journal Issue

2

Pages

237-243

Date Issued

1991-04

Author(s)

Chen, B. H.

Foster, J. E.

Araya, J. E.

Taylor, P. L.

URI

https://scholars.tari.gov.tw/handle/123456789/20606

Abstract

Laboratory studies were conducted to determine the effect of three wheat cultivars, 'Knox 62', 'Caldwell', and 'Monon', on the Hessian fly; Mayetiola destructor (Say), and its parasitoid, Platygaster hiemalis Forbes. The number of Hessian flies that survived from the egg to the "flaxseed" stage, the number of Hessian flies parasitized by P. hiemalis and the average number of parasitoids produced within each parasizited puparium were used to determine the effect of the cultivar on the Hessian fly and indirectly on the parasitoid. The fewest surviving Hessian flies, and the least level of parasitism were found on Knox 62. Cultivars which had high antibiosis against the Hessian fly also reduced the effectiveness of this parasitoid. Furthermore, resistance and parasitism complemented each other in reducing the numbers of Hessian flies.

Publisher

Georgia Entomological Society

Type

journal article