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, 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 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.
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.
- Systemic Insecticide for Aphids
- Installing Gazebo Support Beams
- Reproductive System of Lady Bugs
- Dangers of Insecticide Chemicals
- Know When to Plant Sunflowers
- Malathion Plus on Apple Trees
- Where Can You Find Milky Spore for Grub and Beetle Control?
- Get Rid of Stink Bugs
- What Is Bt Cotton?
- Use Peppermint to Get Rid of Fleas
- Oak Trees & Caterpillars
- Ant Control