Waarom sterven de winterbijen?

Autor: de Hilster, Y., Gerritsen, L.J.M.

Publikováno v: Resource: weekblad voor Wageningen UR 1 (2007) 25

Imkers over de hele wereld verliezen wel eens bijenvolken gedurende de winter. Om meer zicht te krijgen op dit mysterieuze verschijnsel gaat PPO Bijen van Wageningen UR samen met collega’s uit Europa en Noord-Amerika de Europese wintersterfte in ka

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______9405::a6273f78debd02f78facc5f9a1dfd443
https://research.wur.nl/en/publications/waarom-sterven-de-winterbijen

Op tijd bestrijden van varroa destructor helpt bijen de winter door

Autor: Gerritsen, L.J.M., Blacquière, T., Cornelissen, B., Donders, J.N.L.C., van der Steen, J.J.M.

Publikováno v: Bijen : maandblad voor imkers 1 (2007) 7/8

PPO-Bijen deed vanaf 2005 onderzoek naar het effect van de Varroa destructor mijt op winterbijen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______9405::2f5a99bf5474f9c6c01e5fd8585b1fed
https://research.wur.nl/en/publications/op-tijd-bestrijden-van-varroa-destructor-helpt-bijen-de-winter-do

Biological control of Varroa destructor by fungi

Autor: Gerritsen, L.J.M., Cornelissen, B.

Publikováno v: Proceedings of the section Experimental and Applied Entomology of the Netherlands Entomological Society (NEV)
Proceedings of the section Experimental and Applied Entomology of the Netherlands Entomological Society (NEV). Amsterdam: Nederlandse Entomologische Vereniging (NEV)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::b4b4ddba4670405f0c3ae77697785ab2
https://research.wur.nl/en/publications/biological-control-of-varroa-destructor-by-fungi

Swarm prevention and spring treatment against Varroa destructor in honey bee colonies (Apis mellifera)

Autor: Cornelissen, B., Gerritsen, L.J.M.

Publikováno v: Proceedings of the Netherlands Entomological Society meeting, 17, 133-139
Proceedings of the Netherlands Entomological Society meeting 17 (2006)

In 2004 and 2005 experiments were carried out to test the efficacy and efficiency of Varroa control combined with swarm prevention methods in spring. Honey bee colonies were split in an artificial swarm and a brood carrier. Hereafter the swarms were

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::4a62cd1455181514c33ea62af19cfdac
https://research.wur.nl/en/publications/swarm-prevention-and-spring-treatment-against-varroa-destructor-i

Oral toxicity of bacterial toxins against thrips species

Autor: Gerritsen, L.J.M., Visser, J.H., Jongsma, M.A.

Publikováno v: Proceedings of the section Experimental and Applied Entomology of the Netherlands Entomological Society (NEV), 15th annual meeting of entomologists in The Netherlands, Amsterdam, The Netherlands, 19-12-2003
Proceedings of the section Experimental and Applied Entomology of the Netherlands Entomological Society (NEV), 15th annual meeting of entomologists in The Netherlands, Amsterdam, The Netherlands, 19-12-2003. Amsterdam: Nederlandse Entomologische Vereniging (NEV)

The oral toxicity of excretion products of several Photorhabdus and Xenorhabdus strains was tested on two thrips species: Frankliniella occidentalis and Thrips tabaci. Out of 46 Photorhabdus isolates and 6 Xenorhabdus isolates only 6 North American P

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a0f2843c08ee99b88ac63a2132f44cae
https://research.wur.nl/en/publications/oral-toxicity-of-bacterial-toxins-against-thrips-species