Frequent use of one type of insecticides with overdose, mixing of more than one insecticide in tank, not following intercultural operations, provide free ground to flare up this pest. The insecticides which you are spraying do not control this pest; try with fipronil 7% + hexythiazox 2% SC @ 20 ml per 10 lit of water. In addition, it can also control mites, if persist on the crop.