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板栗是极为重要的木本粮食植物,经济价值高,市场前景广阔,在全国乃至世界经济林占有重要一席之地 但板栗林易发生大面积病害,给农户带来重大损失。目前板栗病害已成为板栗生产中急待解决的问题 一、病害发生特点 1.病害种类繁多 经多年调查表明,我省板栗病害多达31种,占日前我国已报道病害的2/3,且90％以上是由真菌引起,其中危害叶、芽的病害有9种、危害果实有5种、危害枝干的病害有9种、根部病害有8种。此外,还有干早、日灼、冻害、缺素等生理性病害。
Chestnut is an extremely important woody food plant, with high economic value and broad market prospects. It occupies an important place in the national and even global economic forests. However, Chestnut Lin is susceptible to large-scale diseases and causes heavy losses to farmers. The current chestnut disease has become an urgent problem in the chestnut production A characteristic of the disease 1. A wide range of diseases After years of investigation showed that as many as 31 species of chestnut in our province, accounting for the disease has been reported in China 2/3, and 90 The above are caused by fungi, of which 9 are harmful to leaf and bud, 5 are harmful to fruit, 9 are harmful to branches and 8 are root diseases. In addition, dry early, sunburn, frost damage, lack of physical and other diseases.