Abstract: Three-dimensional spatial pattern of hawthorn spider mite adults and its aggregation and dispersion types are observed, and time series dynamics of its aggregation intensity are studied using patchiness index. The results show that all of the spatial pattern of adult mites an apple tree are aggregatively distributed as individuals or small colonies, and the aggregation intensity in lower crown is the highest. Based on spatial pattern of population, data transformation formulae about upper, middle and lower crowns are given.

Key words: Hawthorn spider mite, Three-dimensional pattern, Data transformation, Time-series dynamics, soil fumigation, Fusarium wilt disease control., continuous cropped soil, Fusarium oxysproum, biofertilizer