Causes and Control Measures of Spruce Needle-drop Disease in Diebu of Gansu Province
The spruce in Diebu area of Gansu province is one of the important forest resources in this area.However,in recent years,the spruce needle-drop disease has occurred frequently,which poses a great threat to the health and growth of trees.Spruce needle-drop disease is a disease caused by fungi,which is characterized by yellowing,wilting and eventually falling off of spruce needles,seriously affecting the photosynthesis ability and growth and development of trees.The occurrence characteristics and causes of spruce needle-drop disease in Diebu area of Gansu province were comprehensively analyzed.On this basis,a series of scientific and effective control measures were put forward,including strengthening the management of cultivation environment,carrying out prevention work according to the characteristics of tree species,and applying chemical control technology,aiming to provide guidance and reference for the protection and restoration of spruce forest in this area.
Spruce needle-drop diseaseCausesPrevention measuresForest trees
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