摘要
辣椒疫病是疫霉属真菌寄生所引起的一种病害。在苗期和成株期均可发生。主要危害根茎部,病株最后青枯而死。1989年塘沽区菜农因此病经济损失达300多万元。根据对发病原因分析和药剂试验结果,提出以下综合防治措施:①深挖沟渠,降低地下水位;②实行灌排分开,提高灌溉水质;③适期播种,培育无病壮苗,加强田间管理;④选用瑞毒霉,甲霜灵铜等药剂及时防治,苗期用600倍液喷根;定植前对土壤进行药剂处理;成株期用药液灌根。
Pepper blight is a disease caused by a fungus of Phytophthora.It can occur at seedling and grown-up stage of pepper.The disease damage mostly the basal part of the stem. Infected plants at last die of wilt.Because of this disease farmer lost over three million yuan in Tang-gu district 1989.According to analysis of pathogeny and experiment results following measures of integrated control have been suggestel:(1) picking deep canal to low water-table (2) separating irrigation from drainage to improve water quality (3) sowing seeds in optimum matalaxyl、matalaxyl-copper period and culturing health seedlings.Paying attention to field management (4)adopting fungicide to control the disease in time spraying and drenching roots at seedling and grown-up stage with 600 time solution,treating soil with above fungicide before transplanting
出处
《天津农林科技》
1992年第3期8-10,共3页
Science and Technology of Tianjin Agriculture and Forestry
关键词
辣椒
疫病
综合防治
Pepper (Capsicum frutescens L)
blight disease
integraled control
