Once a hornworm has been injected with braconid wasp eggs, its life cycle starts to deteriorate. If you find a hornworm in your tomato patch covered with wasp cocoons, leave it alone. Allow the ...

Tomato branches with missing leaves will be evident ... vary in color from yellow/light green to white. Crush eggs if found. Handpick caterpillars and drown them in a container of soapy water.