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为探求防治柑桔溃疡病有效农药品种,作者于1984年至1985年在高桥乡凉棚岙村,院桥镇河头村、唐家岙村,鼓屿乡药山村百果园等地进行多种试验比较,供试的柑桔品种有“四三九”、无核桔、槾桔、早桔、碰柑等苗木和“四三九”结果树。除小面积液药试验和初步药效观察外,小区面积30平方米以上并重复三次的试验。分别在各期春、夏、秋梢抽发盛期和新叶生长不同阶段进行喷药,观察药害,考察药效。以新叶发病率、病指和病斑状况,综合评价效果。 通过二年多点试验结果表明剪除病枝
In order to explore effective varieties of pesticides for preventing and curing citrus canker, the author conducted various kinds of experiments in 1984 between 1984 and 1985 in Liangchuang Village of Takahashi Township, Heitou Village of Yuanqiao Town, Tangjiao Village, Compared with the test, citrus varieties tested included “439” seedlings, seedless trees such as nuclear orange, tangerine orange, early orange and citrus fruit and “439” fruit trees. In addition to a small area of liquid medicine test and preliminary efficacy observation, the plot area of more than 30 square meters and repeated three times. Respectively, in the spring, summer, autumn shoots pumping period and new leaf growth at different stages of spraying, observation of drug damage, study efficacy. The incidence of new leaves, disease and disease spots, comprehensive evaluation of the results. After more than two years of test results showed that cut off diseased branches