Emergence Ecology of Japanese Pine Sawyer, Monochamus alternatus (Coleoptera:Cerambycidae), a Vector of Pinewood Nematode, Bursaphelenchus xylophilus
2003
Kim, D.S | Lee, S.M. | Moon, I.S (Korea Forest Research Institute, jinju, Republic of Korea) | Chung, Y.J. | Choi, K.S. (Korea Forest Research Institute, Seoul, Republic of Korea) | Park, J.G. (Gyeongsang National University, Jinju, Republic of Korea)
Japanese pine sawyer, Monochamus alternatus, is a primary vector of pinewood nematode, Bursaphelenchus xylophilus in Korea. Emergence characteristics of the adults were studied in Jinju, Korea using dead pine logs in which the larvae of the sawyer overwintered from 1999 to 2002. Emergence data showed that the adults began to emerge out of the logs in sunny place from May the 15th in average of the four years. Cumulative emergence ratio (CER) reached at 50% at mid-June, and the emergence terminated by early or late July depending on years. In shady place, however, 50% CER was reached 17 days later than in sunny place. The 50% CER of males reached 1 to 4 days earlier than that of females depending on years. Of the adults emerged from the logs collected from Febrary to April in 2001, 97.6% was univoltine, and the rest was biennial which emerged from May to July of the nest year.
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