Integrated control practice of citrus target spot disease in Wanzhou,Chongqing
Citrus target spot disease was introduced into Wanzhou,Chongqing in 2018,causing significant damage to the local Eureka lemon,resulting in heavy losses to the local lemon industry.To better control cit-rus target spot disease and promote the healthy development of the citrus industry,the occurrence history and harm,epidemic causes,and symptom identification of citrus target spot disease were summarized.A set of comprehensive control plans was summed up based on field monitoring and indoor pesticide screening experi-ments,which was demonstrated in Eureka lemon production area in Wanzhou District from 2022 to 2023.Af-ter the comprehensive prevention and control plan was adopted in the demonstration area,the incidence rate of citrus target spot disease dropped from 100％in 2019-2021 to 25.60％-41.23％,and the disease index dropped from 50-60 to 5.31-10.86.There was no defoliation or fruit drop in the large area of production,en-suring that the yield and fruit quality of the lemon production were not affected,with obvious control effects.
citrus target spot diseasebactericidecontrol practice
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