Horticultural oil is an organic solution for the mealybugs. Since it is so hot this month, try an ultra fine horticultural oil and spray (following label directions) only in the cool of the evening. If you don't want the caterpillars, then a spray of bt (Bacillis Thurengenesis - sp?) will control them. Look for this labeled as Thuricide or Dipel. Your lantana may have spider mites. Repeated sprays with a strong blast of water on the tops and undersides of the leaves will help get rid of them. You could also order the predatory mite which will eat the spider mites. Order these from an insectary - you can find mail order sources online or possibly from a nursery or feed store that sells organics or they may be able to recommend a source. You might have to place more than one order for the predatory mites since if they run out of food they will die and if the spider mites return, you'll need more.

Check out Lantana Lace Bug, Teleonemia scrupulosa Stal. a program by J.A. Reinert, W.A. Mackay, S.W. George, E. Smith and T.D. Davis presented at Texas A&M University, Dallas in May 2002. Or call your county agrilite office for more information.