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近年来,随着水稻种植格局的调整,防治药剂的改变,水稻纵卷叶螟发生频率增加,严重影响了水稻的稳产、高产,一般情况下减产2~3成,严重时可减产5成以上,所以全面认识稻纵卷叶螟,并采取科学有效的防治方法显得至关重要。根据调查了解到,有不少农民朋友对稻纵卷叶螟的防治认识存在以下几点误区,现归纳总结一下,供大家参考。误区一:见虫用药。经观察,不少农民往往要等到卷叶很严重,甚至白叶时才去防治,使得药液很难接触到虫体,加上虫龄偏大,耐药性增强,很难杀死害虫。合理的用药时间应该
In recent years, with the adjustment of the rice planting pattern and the change of the control agent, the occurrence frequency of the rice leaf roller has increased severely, which has seriously affected the stable yield and high yield of rice. In general, the yield is reduced by 2 to 3 percent, and in severe cases, the yield can be reduced by more than 50 percent Therefore, it is very important to fully understand the rice leaf roller and adopt a scientific and effective control method. According to the survey, many farmers friends know about the prevention and control of rice leafroller there are some errors, are summarized, for your reference. Myth: see insects medication. It has been observed that many peasants often have to wait until the leaf is very curly and even go against the white leaves. This makes it difficult for liquid chemicals to come into contact with the parasites. In addition, the pest is too large and the resistance is enhanced. It is very difficult to kill pests. Reasonable medication time should be