Abstract
AbstractThe effect of organophosphate and oxime carbamates on the potato cyst nematode, Heterodera rostochiensis was investigated. Although aldicarb slightly delayed emergence of second stage larvae, none of the chemicals decreased total hatch.Aldicarb had a marked effect on second stage larvae in soil which was subsequently reflected in root invasion counts.Comparisons between the initial and final populations (multiplication rate) of the potato cyst nematode are very useful for determining the efficacy of treatment. The evidence from these experiments suggests that organophosphoros compounds and oxime carbamates, although “systemic”, act against plant parasitic nematodes in the soil phase of the life cycle and not in the plant.
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