论文部分内容阅读
云南垦区,特别是西双版纳,1978年以来流行季风性落叶病,其病原与条溃疡病痫菌相同。由于落叶病普遍发生,田间菌量大,加上气候影响,原有的防病措施不能完全控制条溃疡病的流行,因此1978—1980年又出现大批病树;这三年西双版纳垦区就停割了23.9万株中、重病树,占开割树的8.1％,年损失干胶800吨以上,
Yunnan reclamation area, especially in Xishuangbanna since 1978, the prevalence of monsoon deciduous disease, the pathogen and ulcer disease is the same. Due to the prevalence of deciduous diseases, the large amount of bacteria in the field and the climatic impact, the original disease control measures can not completely control the prevalence of ulcer disease. Therefore, a large number of diseased trees appeared again in 1978-1980. In the past three years, the Xishuangbanna reclamation area was stopped A total of 239,000 strains of moderately and severely diseased trees accounted for 8.1% of the open cut trees, with an annual loss of more than 800 tons of dried rubber.