Plan the perfect garden with our interactive tool →

The Best Insecticide for Caterpillars

...
caterpillar image by Yuri Davidov from Fotolia.com

A variety of caterpillar species can infest and damage ornamentals, trees and crops. Chemical insecticide control is most effective for reducing caterpillar larvae before maturation, according to the University of Kentucky.

Bacillus Thuringiensis

Bacillus thuringiensis, or Bt, is a natural insecticide derived from bacteria that causes disease among insects. Bt works by producing a protein, that when introduced into the infected caterpillar, causes it to stop eating, which eventually leads to starvation, according to Colorado State University. Because the bacteria are harmful only to some target insects, it is safe to use around humans and animals.

Esfenvalerate

Esfenvalerate is a synthetic insecticide effective on “Woolly bear” caterpillars, according to the "Pacific Northwest Insect Management Handbook." When ingested, the insecticide causes acute toxicity to insects and certain mammals, according to Oregon State University.

  • A variety of caterpillar species can infest and damage ornamentals, trees and crops.
  • When ingested, the insecticide causes acute toxicity to insects and certain mammals, according to Oregon State University.

Carbaryl

Carbaryl is a highly toxic, general-use insecticide common for caterpillar and other insect control. According to Cornell University, carbaryl is a highly effective insecticide that works by direct contact or inhalation; however, it is dangerous to humans and animals if improperly applied.

Related Articles

What Weed Killer Kills Buckthorn?
What Weed Killer Kills Buckthorn?
How to Get Rid of Caterpillars in Fruit Tree
How to Get Rid of Caterpillars in Fruit Tree
Insecticides for Apple Trees
Insecticides for Apple Trees
Insecticides for Oak Trees
Insecticides for Oak Trees
Which is the best insecticide to use: Malathion or Sevin?
Which is the best insecticide to use: Malathion or...
What Is Eating My Bougainvillea?
What Is Eating My Bougainvillea?
List of Organic Pesticides
List of Organic Pesticides
Caterpillar Insecticide for Roses
Caterpillar Insecticide for Roses
Insecticides for Tomato Plants
Insecticides for Tomato Plants
Components of Insecticide
Components of Insecticide
Caterpillars That Eat Tomato Plants
Caterpillars That Eat Tomato Plants
The Derris Insecticide
The Derris Insecticide
Edible Crab Apple Tree Varieties
Edible Crab Apple Tree Varieties
Garden Guides
×