Spatial construction and relationship between Haltica chalybea and its predatory natural enemy, Erigonidium graminicola STUDIES ON THE DEVELOPMENT,REPRODUCTION AND PREDATION OF THE EXPERIMENTAL POPULATION OF ERIGONIDIUM Geostatistical analysis on spatial patterns of Erythroneura sudra and Erigonidium graminicola ON THE FUNCTIONAL RESPONSE AND PREFERENCE OF TWO PADDYFIELD SPIDERS TO A SPRINGTAIL Spatial distribution pattern and space dependence of Contarinia spand Erigonidium graminicola in jujube orchard Geostatistics analysis on spatial patterns of Myzus persicae and Erigonidium graminicola in plum orchard Geostatistic analysis on spatial patterns of Aphis gossypii and Erigonidium graminicola Spatial structure of populations Myzus persicae and its predatory natural enemy Erigonidium graminicola