Entomological Review (2005) 85, 347-351

N.Z. Klyueva, D.B. Ryzhov, S.G. Karpova and S.Ya. Reznik (2005)
Influence of phenybut on regulation of daily rhythm of adult eclosion in Trichogramma embryophagum Htg. (Hymenoptera, Trichogrammatidae)
Entomological Review 85 (4), 347-351
Abstract: Phenybut is an agonist of GABAb receptors. Adults of Trichogramma embryophagum Htg. were fed with 0.5-20% solution of phenybut in 50% sugar solution. The experiments demonstrated that adult mortality during 48 h increased significantly with phenybut concentration. Thus, a dose-dependent response was revealed by enteral application of a GABAb receptor agonist. When T. embryophagum females were fed with 1% solution of phenybut in 50% sugar solution, significant changes in the daily eclosion pattern in their progeny were revealed. In particular, more intensive eclosion was observed under development at the photoperiod L : D = 12 : 12 and anticipatory (after a 2-h long scotophase) light-on in the day when eclosion was recorded. The increased sensitivity to light may be due to the phenybut effect on the serotonergic system, which controls daily rhythms.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Sergey Ya. Reznik, Svetlana G. Karpova

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
resistance to pesticides

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Trichogramma embryophagum (parasitoid)