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枣疯病又名枣丛枝病,是枣树的毁灭性病害。遍布于我国华北、西北、华东、华南等枣区。河北、山西、山东、河南等省发病较重。据河北农大枣研究中心调查,我省太行山枣区每年因枣疯病而死亡的成龄大树多达100万株以上,直接经济损失达数千万元。行唐县和赞皇县大枣产区,一般发病株率5%,重病枣园高达10%以上。 1、病状。枝叶丛生和叶片黄化为该病的主要特征,表现为:芽的不正常萌发。病树的主芽和副芽同时萌发形成发育枝,新枝上的芽又多次萌发,形成细弱、节间短、叶片小而黄的丛生状枝。疯枝上的叶冬
Jujube Bark, also known as jujube witches broom, is a devastating disease of jujube trees. All over China in North China, Northwest China, East China, South China and other areas. Hebei, Shanxi, Shandong, Henan and other provinces heavier. According to the survey of Hebei Agricultural University Jujube Research Center, Taihang Mountain Jujube District in our province each year as a result of Jujube Bacheng died of as many as 1 million trees, the direct economic loss of tens of millions of dollars. Zhaotang County and Zanhuang County jujube producing areas, the general incidence of 5% of the plant, seriously ill jujube up to 10%. 1, the condition. Branches and leaves yellowing of the main characteristics of the disease, manifested as: the germination of the bud. At the same time, the main buds and accessory buds of diseased trees germinate to form developmental branches, and the buds on the new branches germinate again and again to form clusters of small, yellow and yellow ones. Leaves on the crazy branches