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Biology of a strain of Neoseiulus idaeus (Acari: Phytoseiidae) from Southwest Brazil

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Abstract

The biology of a strain of Neoseiulus idaeus Denmark & Muma from Carapó, State of Mato Grosso do Sul, was studied on two tetranychid prey, Mononychellus tanajoa (Bondar) and Tetranychus urticae Koch, at 25±1°C and 80±10% RH. The intrinsic rate of increase (rm) was considerably higher on T. urticae than on M. tanajoa (0.214 and 0.139, respectively). N. idaeus had lower total fecundity and net reproductive rate and higher mean generation time and sex ratio when the prey was M. tanajoa. Eggs of N. idaeus from Carapó were considerably more susceptible to low humidity levels than eggs of populations of N. idaeus originating from drier areas in northeastern Brazil.

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Authors and Affiliations

  1. CNPMA/EMBRAPA, 13820, Jaguariúna, SP, Brazil

    G. J. De Moraes

  2. EMBRAPA/IITA Agreement, CPATSA/EMBRAPA, 56.300, Petrolina, PE, Brazil

    C. A. D. da Silva & A. N. Moreira

Authors
  1. G. J. De Moraes
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  2. C. A. D. da Silva
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  3. A. N. Moreira
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De Moraes, G.J., da Silva, C.A.D. & Moreira, A.N. Biology of a strain of Neoseiulus idaeus (Acari: Phytoseiidae) from Southwest Brazil. Exp Appl Acarol 18, 213–220 (1994). https://doi.org/10.1007/BF00114168

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