i had them bitches in my outside box's ,finally gave up and just watered in the azamax,got rid them and everything else showed up,,it never ending bro,i always called them death worms,always find on or around carcuses,,im not completly sure,but think eco said the todes wouldnt effect the worms,so not sure about the grubs,,tell ya what i do ,do,home depot has a bag of spectricide granules,i dont put on my plants ,i put it out like chicken feed around my boxes and all my grass,,when my neighbors do mow there grass the fleas are storm troopers if you dig,,stuff controls all sorts bugs grubs and works really well,,only down fall when it gets wet it disolves and you have to reapply,throw it all around the area and around your bags,,tell the bomb girl said hi