 RESULTS : Three gradient spore concentrations of oil-formulated Metarhizium anisopliae ( Metschnikoff ) Sorokin ( Ma000 ) were sprayed onto third-instar nymphs in five bioassays comprising the low buprofezin rates of 0 , 00 , 00 , 00 and 00 microg mL ( -0 ) respectively . Fungal LC ( 00 ) after 0 week at 00 degrees C and 00 : 00 h light : dark photoperiod decreased from 000 conidia mm ( -0 ) in the buprofezin-free bioassay to 00 at the highest chemical rate . Buprofezin ( LC ( 00 ) : 0000 , 000 and 000 microg mL ( -0 ) on days 0 to 0 ) had no significant effect on the fungal outgrowths of mycosis-killed cadavers at the low application rates . The fungal infection was found to cause 00% reduction in reproductive potential of BPH adults . In two 00 day field trials , significant planthopper ( mainly BPH ) control ( 00-00% ) was achieved by biweekly sprays of two fungal candidates ( Ma000 and Ma000 ) at 0 . 0 x 00 ( 00 ) conidia ha ( -0 ) and elevated to 00-00% by incorporating 00 . 0 g buprofezin ha ( -0 ) into the fungal sprays . 