If you notice any Tomato hornworms in your garden,
you should start with pest control as soon as possible. The most basic and remains one of the most effective in dealing with pests is to get down and handpick the caterpillars.
Another option would be to release in your garden natural predators and in the case of Tomato hornworms, lady beetles or lacewings are effective insects. These insects will attach the eggs of the hornworms destroying them from the source.
Gardening organic tomato can be very easy, all you need a simple guide, a sample pamphlet maybe or a brochure. Just remember that organic gardening will require special care and attention.