Spatial Distribution Pattern of Parasaissetianigra Nietner and Two Parasitoids

The spatial distribution pattern of P.nigraadults and nymphs,Metaphycus parasaissetiae and Coccophagus ceroplastae was analyzed by aggregation index method and Taylor's power law to study the spatial distribution pattern of P.nigra and two parasitoids in rubber plantation.The spatial distribution pattern of P.nigraadults and nymphs,M.parasaissetiae and C.ceroplastaeis an aggregated distribution pattern.The spatial distribution pattern of P.nigraadults and M.parasaissetiaeis identical,but the spatial distribution pattern of P.nigra nymphs and C.ceroplastaeis identical.