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日本网纹甜瓜属高档果品,对环境条件要求高,易发生多种病虫害,防治难度大,现将大棚栽培中遇到的各种病虫害及其诊断防治技术,介绍如下: 一、非侵染性病害 1.缺硼症:易出现在网纹甜瓜旺盛营养生长期。其症状是,顶部生长点附近的茎节缩短,新叶变小,藤蔓生长慢,当仔细观察上位叶叶脉时,有萎缩现象。防治方法:(1)应急对策用0.2％硼砂水溶液喷洒叶面;(2)用滴灌的办法施人硼砂1—1.5千克/667平方米,1—2次。
Japanese muskmelon is a high-grade fruit, high requirements on environmental conditions, prone to a variety of pests and diseases, prevention and control is difficult, are now encountered in greenhouse cultivation of various pests and diseases and its diagnosis and prevention technology, described as follows: First, non-invasive Diseases 1 boron deficiency: prone to the strong growth of textured melon nutrition. The symptom is that the top of the node near the growth of shortened, new leaves smaller, slower vine growth, when the upper lobe veins observed carefully, there is atrophy. Prevention and treatment methods: (1) emergency measures with 0.2% borax solution sprayed foliage; (2) the method of drip irrigation borax 1-1.5 kg / 667 square meters, 1-2 times.