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在大棚内使用植物抗病性诱导剂 BTH 75μg.m L-1用药 2次 ,对甜瓜白粉病和细菌角斑病防治效果可达 6 0 %左右。 BTH用药 50 μg.m L-1,或仅用药 1次 ,则效果较差。 BTH对采后病害也具有良好的防治作用 ,甜瓜采后处理可推迟发病 1~ 2周。抗病性诱导剂 BTH用量少 ,无环境污染 ,防治效果好 ,是一种具有广泛应用前景的新型植物病害防治剂。本文首次报道了 BTH对甜瓜白粉病、细菌角斑病和甜瓜采后病害的防治作用
In the greenhouse using plant disease resistance inducer BTH 75μg.m L-1 medication 2 times, the melon powdery mildew and bacterial angular leaf disease control effect of up to 60%. BTH medication 50 μg.m L-1, or only medication 1, the less effective. BTH on postharvest disease also has a good preventive effect, melon postharvest treatment can delay the onset of 1 to 2 weeks. Disease-resistant inducer BTH with less dosage, no environmental pollution, control effect is good, is a broad application prospects of new plant disease control agent. This article first reported the prevention and treatment of BTH on melon powdery mildew, bacterial angular leaf spot and melon postharvest diseases