Survey on the occurrence regulation of citrus sooty mold disease under protected cultivation and its control
To deal with the issue of winter freezing injuries,the protected cultivation of citrus has been widely promoted and applied in Hubei.However,the occurrence of citrus sooty mold disease is becoming more and more severe.Through three years of continuous observation and experiment,it was found that the occurrence and development of citrus sooty mold disease was closely related to cultivation management,ventilation,lighting conditions,indoor temperature and humidity,and the incidence of pests such as aphids,mealybugs,and black scale insects.The control efficiency could reach over 80%by spraying a mixture of insecticides and fungicides targeting aphids,mealybugs,and black scale insects at the initial stage of citrus sooty mold disease occurrence.High-pressure water gun could be employed to clean the tree canopy with'immediate control effects',but the efficiency was very limited because of easy recurrence of disease.A comprehensive control measure involving agricultural control,biological control,and timely use of targeted insecticides mixed with broad-spectrum fungicides was proposed.The promotion and application of this measure in production achieved effective control of citrus sooty mold disease.
protected cultivationcitrus sooty moldcause of occurrencecontrol
万方数据
维普
