Entomophaga (1996) 41, 125-132

M. Schöller, S.A. Hassan and Ch. Reichmuth (1996)
Efficacy assessment of Trichogramma evanescens and T. embryophagum (Hym.: Trichogrammatidae), for control of stored products moth pests in bulk wheat
Entomophaga 41 (1), 125-132
Abstract: The potential of Trichogramma evanescens Westwood and T. embryophagum Quednau to control Ephestia kuehniella and E. elutella was evaluated under laboratory conditions. Both Trichogramma species parasitised eggs of the two Ephestia spp. in bulk wheat at 1, 2 and 5 cm depth. The release of T. evanescens was more effective than that of T. embryophagum resulting in higher rates of parasitism, predation and parasitoid induced mortality. At 17°C and 26°C, the mortality of Ephestia due to the release of T. evanescens was 67, 78% and of T. embryophagum 27 and 38%, respectively. The difference in host finding efficiency between the two species was large, at 5 cm depth and 26°C, T. evanescens parasitised about four times more host eggs compared to T. embryophagum.
(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): Sherif A. Hassan, Matthias Schöller

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Ephestia kuehniella	Stored grain
Trichogramma embryophagum (parasitoid)	Ephestia kuehniella	Stored grain
Trichogramma evanescens (parasitoid)	Ephestia kuehniella	Stored grain