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The resistance of codling moth to DDT.


, : The resistance of codling moth to DDT.. Zasc. Rast. Vred. Bolez, 6: 1, 25-7

Trials over 5 years to compare the effects of DDT and calcium arsenate showed that resistance to DDT did not develop within this period, and that more effective control was obtained with 4 applications of a 0.2% solution of DDT than with 7 applications of 0.3% calcium arsenate. Resistant species did develop, however, after 8 years of treatment with DDT.

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Rihet, S.; Lorenzato, M.; Clavel, C., 1996: Oncogenic human papillomaviruses and ploidy in cervical lesions. Aim sbd To compare ploidy measurements obtained on tissue sections of selected low and high grade squamous intraepithelial lesions containing oncogenic HPV (types 16, 18 or 33) detected by in situ hybridisation (ISH) or PCR. Methods sbd DNA ploidy...

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