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SUMMARY Hatched second stage juveniles of Globodera rostochiensis were found to be more sensitive than either unhatched juveniles or adult males to low concentrations of oxamyl (EC50 value for activity 0.5 μg oxamyl ml‐1). Development of juveniles in roots was significantly inhibited by 2.0 μg oxamyl ml‐1 probably due to impairment of normal feeding activity. The behavioural events necessary for orientation of juveniles towards roots for invasion and orientation of males towards females for fertilisation were found to be impaired by 0.5 and 1.0 μg oxamyl ml‐1 respectively. A comparison with previous work on Meloidogyne incognita showed G. rostochiensis juveniles to be more sensitive to oxamyl.
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Evans et al. (1982) studied this question.
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