College of Agriculture, Yangtze University, Jingzhou, Hubei, P.R. China.
Forewarning and Management of Agricultural and Forestry Pests, Hubei Engineering Technology Center, Yangtze University, Jingzhou, Hubei, P.R. China.
J Econ Entomol. 2020 Aug 13;113(4):1927-1932. doi: 10.1093/jee/toaa116.
The production of Chinese chives is reduced throughout China due to a root-feeding dipteran pest Bradysia odoriphaga Yang et Zhang (Diptera: Sciaridae), therefore deciphering the conditions influencing its growth and development are important in developing ecological control strategies. A study was conducted from 2014 to 2017 to determine the relationship between the abundance of B. odoriphaga and temperature (atmospheric and soil), soil water content, and atmospheric humidity in a Chinese chive field in Beijing City, China. Numbers of adults peaked in March and October to November and were lowest in July to August and December to next February; numbers of larvae were highest in December to next February and lowest in July to August. From 2014 to 2017, the numbers of adults and larvae were significantly correlated with monthly mean atmospheric temperatures and soil temperatures, but were not significantly correlated with monthly mean atmospheric relative humidity and soil water content. However, for both adults and larvae, numbers were significantly greater with high soil water contents compared with drought treatment. The results of this study suggest that the very low soil water contents, high atmospheric temperatures, and high soil temperatures were critical for regulating field populations of B. odoriphaga.
由于根食性双翅目害虫黄曲条跳甲 Bradysia odoriphaga Yang et Zhang（双翅目：眼蕈蚊科）的侵害，中国的大葱产量降低，因此解析影响其生长发育的条件对于制定生态控制策略非常重要。本研究于 2014 年至 2017 年期间在中国北京市的大葱田中进行，旨在确定黄曲条跳甲的丰度与温度（大气和土壤）、土壤含水量和大气湿度之间的关系。成虫数量在 3 月和 10 月至 11 月达到峰值，在 7 月至 8 月和 12 月至次年 2 月达到最低；幼虫数量在 12 月至次年 2 月最高，在 7 月至 8 月最低。2014 年至 2017 年期间，成虫和幼虫的数量与月平均大气温度和土壤温度显著相关，但与月平均大气相对湿度和土壤含水量不显著相关。然而，对于成虫和幼虫来说，与干旱处理相比，高土壤含水量时的数量显著增加。本研究结果表明，极低的土壤含水量、高大气温度和高土壤温度是调节黄曲条跳甲田间种群的关键因素。
