It is, therefore, recommended to use a soluble powder, such as Orthene 75-S, to mix your own spray. Half a teaspoon to one quart of water should be strong enough to treat Caterpillars. Neem is a non-toxic, biodegradable substance which has natural insecticidal properties. When sprayed on African Violets, it discourages Caterpillars by making the plant unpalatable. Though Neem does have some systemic effect in plants, spray it as you would other contact insecticides, being sure to cover those areas where Caterpillars tend to attack.
Prevention When working outside, always change clothes before working with indoor plants.
Caterpillars may get trapped in clothing and remain there until they get access to your Violets. Also, beware of moths which have become trapped indoors. They may be carrying eggs. Inc. Nashville, Tennessee. Inc. Optimara and the Optimara logo are trademarks of International Plant Breeding, A.G., Switzerland.