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我们在1972年《柑桔溃疡病综合防治试验总结》中讨论了以清除菌源为目标的综合防治技术消灭柑桔溃疡病的可能性(《四川果树》1973年第一期)。为进一步确定这一技术的效用和提高这一技术,使大面积防病灭病工作达到多、快、好、省的目的,1973年,我们在富顺县怀德镇果园继续进行柑桔溃疡病综合防治试验。材料与方法用8年生实生甜橙带病树共210株,设以下5个处理:(1)试树53株,于1972年冬季及1973年7月中旬2次剪除病枝叶以清除菌源,并于6月8日、6月21日和7月3日、7月18日4次喷施1500单位青鲜素(除6月8日外其余3次均与25％敌枯双可湿性
We in 1972, “the comprehensive prevention and treatment of citrus canker disease,” discusses the elimination of bacterial sources as a comprehensive prevention and control technology to eliminate the possibility of citrus canker disease (“Sichuan fruit” 1973 the first period). In order to further determine the effectiveness of this technology and improve this technology, we will achieve the goal of large-scale prevention and treatment of disease-ridden diseases in a large area. In 1973, we continued to carry out citrus canker disease in Orchard, Fushun County Comprehensive prevention and control test. MATERIALS AND METHODS: A total of 210 trees with 8-year-old sweet orange-banded trees were established. The following 5 treatments were set up: (1) 53 test trees were cut off twice in the winter of 1972 and in mid- And on June 8, June 21 and July 3, July 18, 4 times spraying 1500 units of fresh green (except June 8, the remaining three were 25% with the enemy double dry wet