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Use of radioisotope P32 to evaluate the parasitization of Adoxophyes orana (Lep.: Tortricidae) by mass released Trichogramma dendrolimi (Hym.: Trichogrammatidae) in an apple orchard



Use of radioisotope P32 to evaluate the parasitization of Adoxophyes orana (Lep.: Tortricidae) by mass released Trichogramma dendrolimi (Hym.: Trichogrammatidae) in an apple orchard



Chinese Journal of Biological Control 4(4): 152-154



Mass-reared individuals of Trichogramma dendrolimi were labelled with P32 at a dose of 25 uci/ml. The intensity of radioactivity was detected in the laboratory as 466-642 c.p.m. for 50 adults and 109-117 c.p.m. for 20 parasitized eggs of oak silkworm The radioisotope label had no adverse effect on the longevity, reproduction or sex ratio of the parasitoid.

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Accession: 001997226

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