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Einsatz und Etablierung von Raubmilben zur nachhaltigen Spinnmilbenkontrolle in der Sonderkultur Hopfen


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Jereb, Marina and Weihrauch, Florian (2017) Einsatz und Etablierung von Raubmilben zur nachhaltigen Spinnmilbenkontrolle in der Sonderkultur Hopfen. Paper at: 14. Wissenschaftstagung Ökologischer Landbau, Campus Weihenstephan, Freising-Weihenstephan, 07.-10. März 2017.

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From 2013 2015, the release and establishment of predatory mites for the control of two-spotted spider mites, Tetranychus urticae, was conducted in five hop gardens of
The species compared were the autochthonous mites Typhlodromus pyri, Amblyseius andersoni and a mix of the two
allochthonous species Neoseiulus californicus and phytoseiulus persimilis. Main objective was the establishment of a permanent population of T. pyri in a hop garden by providing the predators with structures for their hibernation by undersown crops. We chose seeding of tall fescue Festuca arundinacea, a grassland seed mixture and
strawberries as an intercrop in the wheel lanes. During the three project years, 15 trials were conducted of which however only two yielded meaningful results. We found
that the cheapest and most effective way to release T. pyri in hops is the transfer of vine cuttings gathered during the pruning of vines in late winter. Besides, the mixture
of P. persimilis and N. californicus proved to be very effective. During samplings of the undersown crop of tall fescue in spring, predatory mites were recorded in low
numbers. This is evidence that tall fescue can serve as a hibernation quarter for predatory mites. More studies are however needed to give more detailed answers to
this thematic constellation.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:hop, two-spotted spider mite, predatory mites, hibernation, biocontrol, Hopfen, Raubmilben, Spinnmilben
Subjects: Crop husbandry
Crop husbandry > Crop health, quality, protection
Research affiliation: Germany > Federal States > Bavaria > State research centre agriculture
International Conferences > 2017: Scientific Conference German Speaking Countries > Special crops
Deposited By: Hasreiter, Anna
ID Code:31869
Deposited On:04 Jul 2017 17:22
Last Modified:04 Jul 2017 17:22
Document Language:German/Deutsch
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 14. Wissenschaftstagung erschienen.
S. Wolfrum, H. Heuwinkel, H.J. Reents, u.a. (Hrsg.) (2017): Ökologischen Landbau weiterdenken - Verantwortung übernehmen - Vertrauen stärken. Beiträge der 14. Wissenschaftstagung Ökologischer Landbau, Freising-Weihenstephan, 7.-10. März 2017
Verlag Dr. Köster, Berlin

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