| A systemic may be in order for your plant. Bayer Advanced Rose and Flower ready mix (Imidacloprid), or Bayer Advanced Lawn Complete Insect Killer for Soil and Turf spray. The second one hooks up to your hose, is inexpensive, has a second ingrediant (Active ingredients: Imidacloprid and Beta-Cyfluthrin...... which is Tempo and Merit), and was used recently on a friends entire large greenhouse of species orchids with no ill effects. This individual used the lawn product to eliminate sow/pill bugs and it did the job completely. It has the same ingredient, Imidacloprid, that other orchid growers have found successful in eliminating scale. The lawn product also comes in a granule form, tho there has been no reports yet of effectiveness and safty. Cynthia |