caa a22 4500 469060646 CHVBK 20180323132856.0 cr unu---uuuuu 170328e19920201xx s 000 0 eng 10.1007/BF01194939 doi (NATIONALLICENCE)springer-10.1007/BF01194939 Morewood W. Department of Biology, University of Victoria, V8W 2Y2, Victoria, B.C., Canada aut Cold storage of Phytoseiulus persimilis (Phytoseiidae) [Elektronische Daten] [W. Morewood] Phytoseiulus persimilis is commerelally mass-reared for use as a biological control agent for spider mites, primarilyTetranychus urticae, and cold storage is a potentially valuable aspect of mass-production. Cold storage ofP. persimilis in empty containers was found to be unsatisfactory, but provision of moisture during cold storage greatly increased survival. Provision of food further increased survival even though the mites were stored at temperatures below their threshold for development of 11°C. When food was provided, survival at 7.5°C was 97% after 4 weeks and 80% after 6 weeks. Subsequent longevity and fecundity of mites that survived 8 weeks at 7.5°C was comparable to mites taken directly from mass-rearing cultures. Survival of mites packaged in bran or vermiculite and held at 6°C for 10 days ranged from 75% to 85% and was not decreased by agitating the containers to simulate shipping. However, survival of mites held in bran or vermiculite at 5°C or 8°C for 4 weeks was poor, ranging from 0-19%, due to growth of mould in the media.Phytoseiulus persimilis can be successfully stored for 4 to 6 weeks in containers provisioned only with food and moisture; granular media used for distribution of the mites should be added just prior to shipping. Elsevier Science Publishers B.V., 1992 Experimental & Applied Acarology Kluwer Academic Publishers 13/3(1992-02-01), 231-236 0168-8162 13:3<231 1992 13 10493 https://doi.org/10.1007/BF01194939 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01194939 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Morewood W. Department of Biology, University of Victoria, V8W 2Y2, Victoria, B.C., Canada aut NATIONALLICENCE 773 0- Experimental & Applied Acarology Kluwer Academic Publishers 13/3(1992-02-01), 231-236 0168-8162 13:3<231 1992 13 10493 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer