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1959—1989年,通过对花生根结线虫生活史及温、湿度的研究证明:该线虫在山东省烟台地区每年发生三代,以卵或幼虫在土壤内越冬。幼虫侵入根组织田间土壤最低温度为12.5℃,发育完成一个世代所需天数的长短,随土壤温湿度的变化而异,在一定温度范围内,完成一代所需时间随温度的提高而缩短。5月中旬至6月下旬,土温于16.33—25.64℃。土壤含水量于6.94—12.58%为该线虫的侵染盛期。
From 1959 to 1989, the study on life history, temperature and humidity of root knot nematode in peanut showed that the nematode occurred three generations a year in Yantai, Shandong Province, and overwinter in the soil with eggs or larvae. Larvae invade the root tissue field soil minimum temperature of 12.5 ℃, the development of a generation to complete the number of days required length, with the soil temperature and humidity changes in a certain temperature range, the completion of the first generation of the required time decreases with increasing temperature. From mid-May to late June, soil temperature at 16.33-25.64 ℃. Soil water content of 6.94-12.58% for the nematode infection period.