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Effects of mating factors on reproduction and sex-ratio of the predacious miteamblyseius zaheri yous. & el-bor. (acari, phytoseiidae)

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Abstract

Three factors were examined to determine their effect on the reproduction and sex-ratio in the predacious miteAmblyseius zaheri Yousef & El-Borolossy in the laboratory. The factors studied included multiple matings, disturbed mating and age of mating females. Fecundity of females mated more than once was 3 times higher than in females mated only once. Artificial curtailment of copulation to 120, 60 and SO min resulted in reduction of fecundity and oviposition period. The Age of mated females has an influence also on fecundity, old females produce fewer eggs compared with young females under constant condition of abundant prey. All 3 factors studied have no influence on the sex-ratio of the progeny.

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Authors and Affiliations

  1. Pests and Plant Protection Department, National Research Center, Cairo, Dokki, Egypt

    S. A. Saber & F M. Momen

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  1. S. A. Saber
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  2. F M. Momen
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Saber, S.A., Momen, F.M. Effects of mating factors on reproduction and sex-ratio of the predacious miteamblyseius zaheri yous. & el-bor. (acari, phytoseiidae). J. Pest Science 73, 113–115 (2000). https://doi.org/10.1007/BF02956441

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