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油橄榄干腐病的症状是树干的韧皮部发生局部变褐坏死。该病最初症状是树皮产生凸起的小水泡(见图1),继之呈块状坏死、开裂(见图2),并逐渐扩大蔓延,至环绕树干(或枝)一周时,整株(或枝)死亡。干腐病在我省引种油橄榄地区均有不同程度的发生,有些引种点发病率达50-85%。为弄清发病原因,找出防治方法,我们自1977年开始对该病进行观察试验。试验地设在油橄榄干腐病发生比较严重的
The symptoms of dry rot of the olive tree are localized browning and necrosis of the phloem of the trunk. The first symptom of the disease is the emergence of small blisters bark (see Figure 1), followed by massive necrosis, cracking (see Figure 2), and gradually expand the spread to the trunk (or branch) around a week, the whole plant (Or branch) died. Dry rot in the introduction of olive oil in our province have varying degrees of occurrence, some of the incidence of introduction point of 50-85%. To find out the cause of the disease, to find out the prevention and treatment methods, we have been observing the disease since 1977. Experimentally located in olive dry rot occurred more serious