I am totally grass free also and couldn't be happier. I have my paths, arbors and pergolas and a paved courtyard. I do have big flower beds and lots of containers -- all guaranteed to keep me as busy as I want and not having to worry about weed killer, fungicide or insecticide. Sometimes I do use a good home remedy, recommended by the University of Florida.
Home made soap and oil spray for insect control (this can also help keep mealy bug under control).
Mix: 2-1/2 Tbsp cooking oil + 2- ½ Tbsp baby shampoo. Mix well in 1 gallon of water.
Note: Shake well before and during application. Water the plant well the day before you spray. Do not spray during the heat of the day in full sun. Reduce potential injury by rinsing the plant with fresh water a few hours after the soap spray application. Thorough coverage of the pest is necessary so spray both sides of the foliage thoroughly until it drips form the leaves.
Spray every 5-7 days as needed.
If a fungus is also present then add to the above formula: 2 Tbsp baking soda
Note: Shake well before and during application. If the weather is humid or the threat of disease is high, spray every five to seven days. Spray both sides of the leaves thoroughly. Always test any spray on a small area of the plant.
The use of soap or oil for insect control will control the insects but will do nothing to correct the condition that is making the plant susceptible to the insects. Using foliar applications of fish emulsion and seaweed may help weak plants do better. (I use Max Crop - no smell.)
