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由于长年喷施农药、烟蚜的抗药性增强,且喷施农药影响人体健康,不少专业户多年探索,喷醋是治烟蚜的好办法。其方法如下: 醋可在四个时期喷施:缓苗期,即叶片不凋萎、有新叶发生期,喷施第1次;团棵期,即株高40厘米左右的时期,喷施第2次;旺长期,喷施第3次;现蕾期,喷施第4次。喷洒的醋即普通食醋。各次喷施的醋液浓度分别为:第1次为4％-6％,第2次为5％-7％;第三次、第四次为7％-9％。每667平方米一般需醋0.5公斤。喷醋具体时间,一天中以15时-17时为宜。如遇大雨,雨停后应
Due to the long-term spraying of pesticides, the resistance of the tobacco aphids increased, and spray pesticides affect human health, many professional households to explore for many years, spraying vinegar is a good way to cure aphids. The method is as follows: vinegar can be sprayed in four periods: Huanmiaobu, that leaves do not wilt, there is a new leaf period, the first spray; Mission period, that plant height of about 40 cm period, spraying The second; Wang long period, spraying the third; budding period, spraying the fourth. Sprinkled vinegar that is ordinary vinegar. The concentration of the vinegar solution sprayed was 4% -6% for the first time, 5% -7% for the second time, and 7% -9% for the third time and the fourth time. Every 667 square meters generally need to vinegar 0.5 kg. Vinegar specific time, a day to 15:00 -17 o’clock is appropriate. In case of heavy rain, the rain should stop