Temperature Effects on the Transmission of Bursaphelenchus xylophilus(Nemata: Aphelenchoididae) by Monochamus alternatus (Coleoptera: Cerambycidae)
AbstractThe object of this research was to investigate the effects of ambient temperature on the transmission of the pinewood nematode, Bursaphelenchus xylophilus, by its vector, Monochamus alternatus. Ninety M. alternatus were reared individually at one of three constant temperatures (16, 20, and 25ºC). As the ambient temperature decreased from 25 to 16ºC, longevity of vectors decreased, nematode transmission efficiency decreased, and the peak period of nematode transmission was delayed and its peak height decreased. Low temperature may inhibit the transmission process, and this inhibition could be partially responsible for preventing pine wilt disease from devastating pine forests in cool regions.
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