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根据当年棉花害虫调查,观察数据,气象要素及棉花生育状况,结合历史资料进行棉花害虫预报,是棉花害虫测报的主要方法。但是由于实际工作中存在以下问题,影响测报的准确性。一、诱测工具测报灯由黑光灯替代以往的白炽灯、日光灯,由于诱虫效果的不同,年度间诱虫量可比性差。有的测报站黑光灯设在城郊、村镇附近,受照明用电、工业用电和高层建筑的影响,诱虫效果差,不能反映田间实际发生情况。在黑光灯使用时间上,过去没有统
According to the survey of cotton pests, observation data, meteorological factors and cotton reproductive status in the current year, combined with historical data for cotton pest forecasting is the main method of cotton pests. However, due to the following problems in actual work, the accuracy of the report is affected. First, the detection of measuring instrument warning light replaced by black light incandescent lamps, fluorescent lamps, due to the different effects of the trapping insects, the annual comparable rate of trap insects. Some measuring stations black light located in the suburbs, near villages and towns, by lighting electricity, industrial electricity and high-rise buildings, the effect of the trap is poor, can not reflect the actual situation in the field. Black light in the use of time, the past did not control