questions: asking about control of pest infestation

spray malathion 50 ec @2gm/l water , 3 spray at 3 days interval.
also spray borax @5gm/l water as foliar spray 
 
 answers: spray malathion 50 ec @2gm/l water , 3 spray at 3 days interval.
also spray borax @5gm/l water as foliar spray