乙磷铝防病好

• 作 者: 吕佩珂 沈忠佑
• 出 处: 植物保护
• 发表日期: 1981年01期
• 关键词: 乙磷铝 什来特 番茄晚疫病 日喷 代森锌 病情指数 病叶 单株

近年来番茄晚疫病常常大流行,严重影响生产。曾用代森锌、什来特等防治,效果不明显。1980年试用上海农药厂生产的40％乙磷铝,配成3,000ppm浓度,以50％百菌清(1,250ppm)作对比药,另设清水对照,每处理两行架,于8月9日喷药,24日检查药效,从每株顶部往下取13层叶片,共166片,病叶114片,发病率68.57％,病情指数28.16,

In recent years, tomato late blight is often pandemic, seriously affecting production. Once with decency zinc, even to special prevention and treatment, the effect is not obvious. 1980 trial of Shanghai Pesticide Factory production of 40% aluminum phosphorus, dubbed 3,000ppm concentration, with 50% chlorothalonil (1,250ppm) as contrast drugs, set up another water control, each handling two lines, on August 9 Spray on the 24th to check the efficacy, from the top of each plant down to take 13 layers of leaves, a total of 166, sick leaves 114, the incidence rate of 68.57%, disease index 28.16,