The Occurrence and Control of Leaf Spot Disease on Major Economic Tree Species in Guangde City
From 2020 to 2023,significant leaf spot disease has occurred on the main economic tree species of bamboo and tea(Camellia L.),in Guangde City.After microscopic examination,Alternaria Nees was found.This paper investigates the prevalence patterns of this disease,through comparative investigation,it was found that camellia flowers planted in urban green spaces have obvious disease spots and serious harm,while tea trees planted in mixed forests or under forests have no typical disease spots and are less harmful.The diseased bamboo forest has gradually recovered its health by adopting measures such as suitable stand density and retaining local tree species.Improper cultivation management methods and lack of biodiversity are the main reasons for the occurrence and prevalence of this type of disease.
万方数据
维普
