Monochamus carolinensis (Olivier) and M. titillator (Fab.) have one to one and one-half generations per year in the Piedmont of North Carolina. Adults begin to emerge by the end of May and the flight period extends to early October. Both species go through a period of maturation feeding for about three weeks before they oviposit. The incubation period is about a week. In the field, pine logs remained attractive for ovipositing females for up to 42 days. Mortality from early-instar larvae to emerged adults averaged about 85%. None of 300 adults examined for the pine wood nematode Bursaphlenchus xylophilus (Steiner and Buhrer) were infected.
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Alya et al. (1985) studied this question.