Journal of Applied Entomology - Zeitschrift für angewandte Entomologie (1995) 119, 79-82

From Pestinfo-Wiki
Jump to: navigation, search

Pala Ram, W.B. Tshernyshev, V.M. Afonina and Sh. M. Greenberg (1995)
Studies on the strains of Trichogramma evanescens Westwood (Hym., Trichogrammatidae) collected from different hosts in Northern Maldova
Journal of Applied Entomology - Zeitschrift für angewandte Entomologie 119 (1), 79-82
Abstract: Biological and morphological characteristics together with electrophoretic patterns were compared for five strains of Trichogramma evanescens W., collected from the eggs of Mamestra brassicae L., Ostrinia nubilalis Hb. and Agrotis segetum Schiff. in northern Maldova. Significant differences were observed in the biological characteristics including the proportion of female progeny, developmental period, longevity and fecundity. The strains also differed in the ratio of antennal hair length to the maximum width of flagellum in males. Patterns of esterase systems indicated that the strains differed in the mobility and intensity of esterase bands. All the strains had a strong preference for the host from which they were collected in the field. Crossing of the strains indicated that one strain was reproductively isolated. The results have application in selecting the strategy for establishing initial colony in mass rearing of parasitoids and for research on Trichogramma ecology and evolution.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Shoil M. Greenberg

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Mamestra brassicae Cabbage (Brassica oleracea) Moldova
Ostrinia nubilalis Maize/corn (Zea mays) Moldova
Agrotis segetum Beet/sugarbeet (Beta vulgaris) Moldova
Trichogramma evanescens (parasitoid) Mamestra brassicae Cabbage (Brassica oleracea) Moldova
Trichogramma evanescens (parasitoid) Ostrinia nubilalis Maize/corn (Zea mays) Moldova
Trichogramma evanescens (parasitoid) Agrotis segetum Beet/sugarbeet (Beta vulgaris) Moldova