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Biology and life table parameters of the coccinellid predatory insect Stethorus gilvifrons (Mulsant) fed on immatures of Tetranychus urticae (Koch) [electronic resource].

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Nassar, O. A

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Language: English Summary language: Arabic Description: p.9705-9713Other title:

بيولوجى وجدول الحياة للمفترس الحشرى Stethorus gilvirons عند تربيته على الأطوار المتحركة العنكبوت الأحمر T.urticae [Added title page title]

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Mansoura University journal of agricultural sciences, 2009 v. 34 (9) [electronic resource].

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In: Mansoura University journal of agricultural sciences 2009.v.34 (9)Summary: Biological aspects of the predatory insect Stethorus gilvifrons (Mulsant) fed on nymphs of the two - spotted spider mite Tetranychus urticae Koch were studied in laboratory at 25 ± 1 °c and 70 ± 5 % RH., Egg incubation period of eggs lasted 3.87 and 4.07 days for male and female, respectively. The first female larval instar was active slage lived for about 2.93 days, during which it consumed and 7.73 T. urticae individuals with a daily rate of 2.64 preys I day.

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Biological aspects of the predatory insect Stethorus gilvifrons (Mulsant) fed on nymphs of the two - spotted spider mite Tetranychus urticae Koch were studied in laboratory at 25 ± 1 °c and 70 ± 5 % RH., Egg incubation period of eggs lasted 3.87 and 4.07 days for male and female, respectively. The first female larval instar was active slage lived for about 2.93 days, during which it consumed and 7.73 T. urticae individuals with a daily rate of 2.64 preys I day.

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