Effect of the cassava green mite, Mononychellus progresivus, on the development and reproduction of the introduced predatory mite, Phytoseiulus longipes (Acari: Tetranychidae; Phytoseiidae), at different temperatures
2012
Mutisya, D.L. | El-Banhawy, E.M. | Kariuki, C.W. | Khamala, C.P. M. | Fiaboe, K.K.M. | Kungu, M.M.
The cassava green mite (CGM), Mononychellus progresivus Doresta allowed for a limited development of the predatory mite, Phytoseiulus longipes Evans at three experimented temperatures. When the predators were confined with the motile stages of CGM, at 10°C, only 10% of the larvae reached maturity after 16 days. At 24 and 32°C the development on the same prey was improved, however less than 50% that reached maturity, were not able to produce eggs. At the same temperatures, on the tomato spider mite (TSM), Tetranychus evansi Baker & Pritchard, the developmental periods of P. longipes were shorter and mortality lower. P. longipes consumed less number of CGM when compared to TSM and about double the number of TSM prey when compared to CGM. Feeding only on CGM produced insignificant number of eggs with high rate of female mortality. Combination of both CGM and TSM at different ratios substantially improved reproduction and lowered mortality of P. longipes females.
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