Results 31 to 40 of about 2,850 (199)

Oviposition, flight and walking capacity at low temperatures of four aphid parasitoid species (Hymenoptera: Aphidiinae)

open access: yesEuropean Journal of Entomology, 2004
Precocious activity of parasitoids is a key factor for cereal aphid control. We investigated the oviposition, flight and walking capacities at low temperature of four aphid parasitoids (Aphidius rhopalosiphi, A. ervi, Praon volucre, P.
Alain LANGER, Guy BOIVIN, Thierry HANCE
doaj   +1 more source

Parasitism, Adult Emergence, Sex Ratio, and Size of \u3ci\u3eAphidius Colemani\u3c/i\u3e (Hymenoptera: Aphidiidae) on Several Aphid Species [PDF]

open access: yes, 2017
Aphidius colemani Viereck parasitizes several economically important aphid pests of small grain crops including the greenbug, Schizaphis graminum and the Russian wheat aphid, Diuraphis noxia. The ability of A. colemani to switch from S.
Burd, J. D   +4 more
core   +2 more sources

Enemigos naturales de áfidos (Hemíptera: Aphididae) presentes en zonas productoras de trigo en Paraguay

open access: yesInvestigación Agraria, 2018
En los agroecosistemas, existen enemigos naturales controladores de áfidos de cereales, regulando la población de los mismos. El estudio de la identificación y cuantificación es importante para el manejo integrado de plagas del trigo.
Rebeca González Torres   +3 more
doaj   +1 more source

Effects of Aluminum Foil Mulch on Parasitism and Fecundity of Apterous \u3ci\u3eMyzus Persicae\u3c/i\u3e (Homoptera: Aphididae) [PDF]

open access: yes, 2017
Chinese cabbage plants grown in flats containing either aluminum foil mulch or no mulch cover were uniformly infested with a single apterous adult Myzus persicae (Sulzer) and exposed in a greenhouse to a free-flying population of the parasite Aphidius ...
Cranshaw, Whitney S, Zalmon, Frank G
core   +2 more sources

First records of Charipinae (Hymenoptera, Cynipoidea, Figitidae) aphid hyperparasitoids from Malta [PDF]

open access: yes, 2015
Charipinae material has been collected from different localities in Malta. Three species have been identified: Alloxysta citripes, Alloxysta pilipennis and Phaenoglyphis villosa in association with two aphids and one parasitoid species.
Ferrer-Suay, Mar   +4 more
core   +1 more source

Defensive insect symbiont leads to cascading extinctions and community collapse [PDF]

open access: yes, 2016
This is the final version of the article. Available from Wiley via the DOI in this record.Animals often engage in mutualistic associations with microorganisms that protect them from predation, parasitism or pathogen infection.
Dicke, M   +7 more
core   +1 more source

The success of a habitat specialist biological control agent in the face of disturbance

open access: yesEcosphere, 2022
Natural enemies that can use multiple habitats are thought to better withstand disturbances in agricultural systems than natural enemies that are habitat specialists.
Miriam Kishinevsky, Anthony R. Ives
doaj   +1 more source

The state of commercial augmentative biological control: plenty of natural enemies, but a frustrating lack of uptake [PDF]

open access: yes, 2011
Augmentative biological control concerns the periodical release of natural enemies. In com- mercial augmentative biological control, natural enemies are mass-reared in biofactories for release in large numbers to obtain an immediate control of pests. The
Lenteren, J.C., van
core   +5 more sources

Acceptance and suitability of Acyrthosiphon pisum and Sitobion avenae as hosts of the aphid parasitoid Aphidius ervi (Hymenoptera: Braconidae)

open access: yesEuropean Journal of Entomology, 2003
Aphidius ervi Haliday is a parasitoid of natural populations of both Acyrthosiphon pisum (Harris) on alfalfa and Sitobion avenae (Fabricius) on wheat in Chile.
Pauline DAZA-BUSTAMANTE   +2 more
doaj   +1 more source

Trichoderma atroviride P1 Colonization of Tomato Plants Enhances Both Direct and Indirect Defense Barriers Against Insects [PDF]

open access: yes, 2019
Numerous microbial root symbionts are known to induce different levels of enhanced plant protection against a variety of pathogens. However, more recent studies have demonstrated that beneficial microbes are able to induce plant systemic resistance that ...
CASCONE, PASQUALE   +8 more
core   +2 more sources

Home - About - Disclaimer - Privacy