茶树根的癌病内容摘要:
2、上越冬,借灌溉水或雨水传播,也可由地下害虫及带菌工具传播。 随病土和病苗还可进行远距离传播。 病菌从伤口或切口处侵入皮层组织后生长繁殖。 伤口周围细胞因受病菌刺激而加速分裂,形成大量增生的肿瘤。 生产上苗木有无伤口及切口是该病能否大发生的重要条件。 地势低洼、土壤湿度大、土壤粘重的苗圃易发病。 防治方法(1)严格检疫,严禁从病区调运苗木。 (2)选择背风向阳、排水良好、土质疏松的未种过茶树的地块建立扦插苗圃。 (3)加强茶园管理,及时防治地下害虫,千方百计减少根部伤口。 (4)发现病株及时挖除后病穴用 1的 96硫酸铜液或 1:1:100 倍式波尔多液消毒,也可浇灌 80抗菌剂 402 乳剂 1000 倍液。 专利查询。茶树根的癌病
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