are they small white dots, with larger yellow/red colored "ticks"? thats spider mites, i found them in my garden yesterday, there DEAD right now.
i make my own organic pesticidal spray, using easy access, yet powerful compounds.
BOIL:
2 cups water.
4 large cloves of garlic.
1 TBSP(7.5ml) chilly pepper/hot peppers
1/2 cup of PIPE tobbacco. (DO NOT USE CIGGARETTE TOBBACCO. natural pipe tobbaco is NATURAL, NOT generic cigarette tobbaco containg chemical elements and radiaded fertalizers that can kill your plants. just use pipe tobbacco, and the $30 you spend to get it will save you $100's because of the plants.....)
let that mixture cool, then add:
1/2 cup of lemon juice
3 TSP 70-99% rubbing alchohol. (isopropyl alcohol).
spray this mixture on all plants in the effected area, SOAK the exterier of the plant, both sides of the leaf so the entire plant is coated in the mixture. mites will dry up and die, no harm will be caused to the plants. spray 2-3 times over one day, all mites WILL be dead.
a week after you sprayed your pesticede you will want to spray them down with pure water, just to clear out the residue from the stoma in the leaves.
be careful not to inhale to mixture when spraying plants, incase of toxicity.
