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河南省信阳市农科院近期在信阳茶园假眼小绿叶蝉发生特点及危害损失研究方面取得新进展。科研人员通过系统调查研究信阳茶园假眼小绿叶蝉的发生规律,并利用网罩法测定了不同虫口密度对茶叶产量损失的影响。结果表明:假眼小绿叶蝉在信阳地区每年出现2个发生高峰,第1个出现在6月下旬至7月上中旬,第2个出现在9月上中旬。研究人员还建立了假眼小绿叶蝉不同虫口密度与茶叶产量损失的关系式为Y=0.2303X-0.5026和Y=0.2854X-0.8795(Y-产量损失;X-百叶虫数)。
Recently, Xinyang Academy of Agricultural Sciences in Henan Province made new progress in the research on the occurrence characteristics and harm loss of false green leafhoppers in Xinyang Tea Garden. Researchers through the systematic investigation of Xinyang tea plantain green leafhopper occurrence law and the use of net cover method to determine the impact of different insect population density on tea yield loss. The results showed that there were 2 peaks in Xinyang area every year. The first appeared in the middle of June and the middle of July and the second appeared in the middle of September. The researchers also established the relationship between the population density of different green leafhoppers and the loss of tea yield as Y = 0.2303X-0.5026 and Y = 0.2854X-0.8795 (Y-yield loss; X-trilobite numbers).