Results 1 to 10 of about 1,887 (135)

Performance Test and Parameter Optimization of Trichogramma Delivery System

open access: yesMicromachines, 2022
Trichogramma is a small wasp that is a natural enemy of many agricultural pests. Although Trichogramma can be used in sustainable crop production, conventional methods of delivering Trichogramma to fields are expensive and may cause pollution.
Jinliang Gong   +2 more
exaly   +3 more sources

Mass Release of Trichogramma evanescens and T. cacoeciae Can Reduce Damage by the Apple Codling Moth Cydia pomonella in Organic Orchards under Pheromone Disruption

open access: yesInsects, 2017
Cydia pomonella is a major pest in apples in Denmark. Trichogramma spp. are known biocontrol agents of C. pomonella eggs and two naturally occurring species in Denmark, which are also both commercially available, were chosen for mass-release trials ...
Lene Sigsgaard, Annette Herz
exaly   +3 more sources

Response of Trichogramma brassicae to increasing temperature using molecular and biological methods [PDF]

open access: yesنامه انجمن حشره‌شناسی ایران, 2023
The increase in the earth temperature is one of the latest problems threatening the earth ecosystem. Insects as poikilothermic organisms have a high dependence on their environment's temperature so increasing global temperature makes impressions on their
Pouria Abrun   +3 more
doaj   +1 more source

Evaluation of asexual Wolbachia-infected Trichogramma brassicae performance in greenhouse and field conditions [PDF]

open access: yesنامه انجمن حشره‌شناسی ایران, 2023
In some Trichogramma species, parthenogenesis is mostly induced by intracellular symbiotic Wolbachia bacteria. Populations of this egg parasitoid wasp that produce more female progeny can potentially have higher fitness.
Shahram Farrokhi   +3 more
doaj   +1 more source

COMPARATIVE EFFICACY OF Trichogramma evanescens WEST. AND THE BIOCIDE (AGERIN) WITH RECOMMENDED INSECTICIDES PROGRAM FOR CONTROLLING COTTON BOLLWORMS AND ITS EFFECT ON COTTON PRODUCTIVITY IN MIDDLE EGYPT REGION. [PDF]

open access: yesJournal of Plant Protection and Pathology, 2007
This study was carried out at Mallawi region ,  Minia, Governorate during three successive seasons of cotton  (2004, 2005 and 2006) to evaluate the efficiency of releasing distances , numbers of releasing times of the egg- parasitoid , Trichogramma ...
M. Kassem, T. Tohamy ,
doaj   +1 more source

The performance of Trichogramma (Hymenoptera: Trichogrammatidae) Parasitoids Feeding on Honey Sources

open access: yesJournal of Agricultural Sciences, 2021
The effectiveness of parasitoids as organism for biological control is at times limited by food sources. Most of parasitoids rely on carbohydrate foods to enhance their longevity and reproductive capacity.
Aydın Tunçbilek   +3 more
doaj   +1 more source

Interaction of exogenous factors (light and temperature) in their influence on the daily pattern of adult eclosion in Trichogramma embryophagum (Hymenoptera: Trichogrammatidae)

open access: yesEuropean Journal of Entomology, 2002
A comparative study of the direct influence of single, non-repetitive changes of light and/or temperature on the daily pattern of adult eclosion was conducted in laboratory conditions with the egg parasitoid, Trichogramma embryophagum (Hartig).
Svetlana G. KARPOVA, Sergey Ya. REZNIK
doaj   +1 more source

Maternal age and endogenous variation in maternal influence on photoperiodic response in the progeny diapause in Trichogramma embryophagum (Hymenoptera: Trichogrammatidae)

open access: yesEuropean Journal of Entomology, 2002
A laboratory study was carried out on photoperiodic control of prepupal diapause in the egg parasitoid Trichogramma embryophagum (Hartig). All experiments were conducted with an isofemale parthenogenetic strain. The maternal generation was reared at 20°C
Sergey Ya. REZNIK   +3 more
doaj   +1 more source

Effect of photoperiod on parasitization by Trichogramma principium (Hymenoptera: Trichogrammatidae)

open access: yesEuropean Journal of Entomology, 2007
The effect of photoperiod on parasitization of the eggs of the Angoumois grain moth, Sitotroga cerealella (Olivier, 1789) by Trichogramma principium Sugonyaev & Sorokina, 1976 was investigated under several photoperiodic regimes of L : D = 3 : 21, 6 : 18,
Sergey Ya. REZNIK, Nina P. VAGHINA
doaj   +1 more source

First discovery of the natural egg parasitoid of Cydalima perspectalis (Walker, 1859) in Turkey with molecular methods (Lepidoptera: Crambidae

open access: yesSHILAP, 2022
The genus Trichogramma Westwood, 1833 are important biological control agents of especially Lepidoptera pests in all around the world. These tiny wasps can’t be reliably identified owing to their small size and lack of definable morphological characters.
Feza Can, Fahriye Ercan, Basak Ulasli
doaj   +1 more source

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