墨西哥白松等国外松林间自然感染松材线虫病及枯死情况的调查

Pinus strobus var.chiapensis and Other Exotic Pines:Investigation and Analysis on Natural Nematode Infections and Death.

１９９２～１９９６年连续５ａ对引进造林的墨西哥白松等１１种国外松在松材线虫疫区内的枯死情况作了调查，并对枯死植株（除展松外）进行采样分离松材线虫。结果表明，除展松、火炬松、加勒比松、假果松和刚火松外。

Death investigation was made in 1992～1996 for 11 species of exotic pines such as  Pinus strobus var.chiapensis that had been introduced and planted in the nematode diseased area in Zhoushan City of Zhejiang Province.And sampling and parting Bursaphelenchus xylophilus from the dead pines(excepting Pinus patula) were done.The results showed that there were 6 species of exotic pines to be infected natually with nematode disease in the diseased area,and Pinus patula,P.teada,P.caribaea,P.pseudostrobus and  P.rigida×P.teada had a strong resistance to the disease.