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2007-2009年对黑龙江大豆蚜田间种群动态的调查结果表明,6月中旬大豆蚜Aphis glycines Matsumura开始在田间出现,3～5周后田间有蚜株率达到100%。7月未至8月初蚜量达到高峰期,9月中下旬在田间逐渐消失。大豆蚜有翅蚜与无翅蚜的发生动态基本一致,有翅蚜高峰期有时会稍有提前。2007年大豆蚜发生时期早、基数大、增长周期长导致高峰期蚜量显著高于2008年和2009年。大豆蚜田间分布聚集度指标I﹥0、m*/m﹥1、Ca﹥0、C﹥1,整个生长季种群都表现为聚集分布。建立的Iwao回归关系方程(m*=7.14758+1.11200m)表明种群分布的基本成分为个体群,个体之间表现为相互吸引。
The results of field population dynamics of soybean aphid in Heilongjiang from 2007 to 2009 showed that the soybean aphid Aphis glycines Matsumura began to appear in the field in mid-June. After 3 to 5 weeks, the population of aphids reached 100%. The amount of aphids reached a peak in July before the beginning of August and gradually disappeared in the middle and late September in the field. Soybean aphid winged aphid and wingless aphid basically the same dynamics, sometimes aphid peak season will be slightly advanced. In 2007, soybean aphid occurred early, the base number was large, and the long period of growth led to aphid quantity significantly higher than in 2008 and 2009. Soybean aphid field concentration distribution indicators I> 0, m * / m> 1, Ca> 0, C> 1, the population throughout the growing season showed aggregated distribution. The established Iwao regression equation (m * = 7.14758 + 1.11200m) indicates that the basic components of population distribution are individual groups, and the individuals are mutually attractive.