Predator mites

Controlling pests of bamboo

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Rai Hannover
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Location: Germany

Re: Predator mites

Post by Rai Hannover »

John - you may be interested in this French report (Schizotetranychus is mentioned in the abstract):
http://www.cabdirect.org/abstracts/2015 ... 4C3E89A98C
Unfortunately I have no access to the full text.

Rai
IslandBooGuy
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Location: Parksville, BC, Canada Zone8b

Re: Predator mites

Post by IslandBooGuy »

Any updates on this predator? Anyone?
Rick
Bamboo Grower Since 2014
Rai Hannover
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Location: Germany

Re: Predator mites

Post by Rai Hannover »

Let me quote from a new Hungarian research:

„In Hungary only two tetranychid mite species have been found on bamboo taxa: Stigmaeopsis nanjingensis and Schizotetranychus bambusae. Both species are non-native pests introduced by human transport from East Asia. Based on the biological control test both of the commercially available predatory mites (Phytoseiulus persimilis and Stratio- laelaps scimitus) were able to consume the spider mites without their webs in laboratory conditions. However, P. persimilis consumed twice as much spider mites than the other predator.
The web of S. bambusae did not inhibit the predator activity. On the other hand, the predatory mites were unable to break through or crawl under the tightly woven web of S. nanjingensis species. The only known natural enemy of S. nanjingensis is the predatory mite Typhlodromus bambusae which is able to crawl under their net and destroy the mites in it (Zhang et al., 1999).“

Reference:
E. KISS, Á. SZÉNÁSI, A. NEMÉNYI and J. KONTSCHÁN: Can We Use the Predatory Mites against the Invasive Bamboo Pest Spider Mites? Acta Phytopathologica et Entomologica Hungarica, 2017

Rai
johnw
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Bamboo Society Membership: EBS - Germany
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Re: Predator mites

Post by johnw »

Very good predator information Rai.

Viel Dank

johnw
johnw coastal Nova Scotia
Rai Hannover
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Re: Predator mites

Post by Rai Hannover »

John - please be aware that the experiments were carried out with two commercially available predatory mite species (Phytoseiulus persimilis and Hypoaspis miles). After the study of the Hypoaspis miles specimens it was proven to be an entirely different species, namely Stratiolaelaps scimitus. Hypoaspis miles and Stratiolaelaps scimitus are often confused with each other. We cannot be sure which species can be found in the commercially available products, because the identification of the two species requires experience. S. scimitus is a fast-moving predatory mite that lives on the surface of the ground, but they are able to climb up onto plants.

Gruß,
Rai
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