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Twobiotype2populationsofbrownplanthopper(BPH),Nilaparvatalugensstal,wereusedinthisexperiment.Onewaspurifiedbydeterminingtheweig
Twobiotype 2 patternsulations of brown planthopper (BPH), Nilaparvatalugens stal, wereusedinthisexperiment. Onewaspurifiedbydeterminingtheweig