Studies on the spacial distribution pattern of Lygus lucortum Mey er-Dur''s over winter eggs in jujube trees
绿盲蝽越冬卵在枣树上的空间分布型研究

By using the index of 6 kinds of aggregation indices on spacial distribution pattern,Taylor's power principle,and Iwao's regression analysis method,the spacial distribution pattern of Lygus lucortumMeyer-Dur's over winter eggs was studied.The results show that these eggs are aggregation distribution on the jujube trees,which accords with minus (binomial) distribution.This distribution pattern results from the worm's habit and the circumstances.The theoretical sampling number of Lygus lucortumMeyerDur's over winter eggs is ascertained by the distribution indices.