white powdwe on leaf

i have a white powder on some leafs is it mold? mildew? what product works best to get rid of it

Do u folage feed (spray nutes on ur leaves)? If so then its probably just a residue from the nutes u use.. try useing just water, see if that works...

If it's not nute residue, check here: http://plantclinic.cornell.edu/FactSheets/powdery/powdery.htm