Effects of Fungi Coexisting with Ceratocystis sp.on Propagation of Bursaphelenchus xylophilus(Nematoda:Aphelenchoididae)

Abstract

Effects of fungi coexisting with Ceratocystis sp., a suitable food source for the pine wood nematode (PWN), Bursaphelenchus xylophilus, were investigated at 20°C on potato dextrose agar (PDA) plates. When Ceratocystis sp. and one of 5 fungal isolates of 4 genera (Trichoderma spp., Penicillium sp., Arthrobotrys sp. and Verticillium sp.) were inoculated simultaneously, PWN propagation was inhibited by all tested fungi, especially by Trichoderma sp. and Arthrobotrys sp. When Ceratocystis sp. was inoculated 1 week before the other fungi, the nematode propagation was somewhat promoted by 2 isolates of Trichoderma spp. and severely inhibited by Arthrobotrys sp.