1 Tablespoon Canola Oil
1 Tablespoon Baking Soda
3 Tablespoons Tabasco Sauce
6 Drops of non-detergent dishwashing Soap
Add enough Water to make 1 quart of spray

Mix it thoroughly and agitate it often during application.
Spray it on all foliage surfaces once a week or as necessary.

Of course it depends on where and what you are exterminating smile