Development of Trichogramma australicum Giralt (Hymenoptera: Trichogrammatidae) in fertile and infertile Helicoverpa armigera (Huebner) (Lepidoptera: Noctuidae) eggs
Dahlan, A.N.; Gordh, G.
Australian Journal of Entomology 37(2): 180-182
1998
ISSN/ISBN: 1326-6756 DOI: 10.1111/j.1440-6055.1998.tb01568.x
Accession: 008451553
Trichogramma australicum wasps were reared in fertile and infertile Helicoverpa armigera eggs. In one experiment, all parasitised and unparasitised infertile moth eggs collapsed 48-60 h after they were laid and no wasps emerged. In a second experiment, 20% of parasitised infertile eggs (< 12 h old) produced adult wasps but their number was significantly lower (P < 0.05) than those from fertile eggs.
