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Journal Article

Journal article

Influence of temperature and host plants on the development and fecundity of the spider mite Tetranychus urticae (Acarina: Tetranychidae)

Praslicka, J.(Univerzita Konstantina Filozofa, Nitra (Slovak Republic). Katedra Zoologie a Antropologie)E-mail:jpraslicka@unitra.sk; Huszar, J.(Slovenska Polnohospodarska Univ., Nitra (Slovak Republic));

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Temperature plays a key role in the time needed for development of Tetranychus urticae. It developed fastest at 35 deg C (6.50 d) and 30 deg C (6.93 d), whereas at 15 deg C it took 16.23 d. The higher the temperature, the faster the development of the mite. As to host plants involved, T. urticae developed fastest on Phaseolus vulgaris (9.42 d), followed by Cucumis sativus (10.26 d) and Capsicum annuum (10.92 d). Fecundity was highest at 30 deg C (89.1 eggs) and lowest at 15 deg C (58.6 eggs). The fecundity of female mites increased with temperatures up to 30 deg C, but at 35 deg C it had decreased (71.08 eggs). The host plant influenced female fecundity to a limited extent; the average was 79.28 eggs on Phaseolus vulgaris, 71.48 on Capsicum annuum, and 71.22 on Cucumis sativus.

(Revue

Plant Protection Science - UZPI (Czech Republic)

ISSN : 1212-2580