Abstract
A novel system for spider mite control was developed with a slow-release sachet containing Neoseiulus californicus (McGregor) (Acari: Phytoseiidae) protected by a waterproof shelter. Monitoring the efficacy of the predator release system for spider mite control at a Japanese pear greenhouse requires discrimination of N. californicus from other indigenous phytoseiid mite species inhabiting the study site and subsequent identification of the released N. californicus. The report of our earlier study described a PCR-based method for discrimination of N. californicus species. For the present study, we first examined phytoseiid mite species composition in the greenhouse. Subsequently, we developed microsatellite markers to identify the released N. californicus. Finally, we installed the predator release system in the greenhouse and conducted a population survey of phytoseiid and spider mites. Results demonstrated that approximately 1 month is necessary for distribution of the released N. californicus on the leaves.
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Acknowledgements
This work was financially supported by the Ministry of Agriculture, Forestry and Fisheries, Japan through the Science and Technology Research Promotion Program for the Agriculture, Forestry, Fisheries and Food Industry (28022C). The authors thank ISK Biosciences for providing the predator release system.
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Mikawa, Y., Aizawa, M., Uesugi, R. et al. Molecular monitoring of Neoseiulus californicus released from sheltered slow-release sachets for spider mite control in a Japanese pear greenhouse. Exp Appl Acarol 80, 203–214 (2020). https://doi.org/10.1007/s10493-019-00463-4
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DOI: https://doi.org/10.1007/s10493-019-00463-4