What causes an outbreak?

Normally Douglas-Fir Tussock Moth (DFTM) is kept in check by pathogens and predators. When those organisms’ populations decline a larger number of DFTM are able to survive.

A normal healthy forest is made up of different types of trees and trees of different ages. Our forests are largely dense, single species, of similar age which makes them more susceptible to invasion by forest pests.

Show All Answers

1. How do we prevent an outbreak?
2. How long will this outbreak last?
3. How often will I need to treat my trees?
4. Is the government going to treat for Douglas Fir Tussock Moth (DFTM)?
5. What causes an outbreak?
6. What is Douglas Fir Tussock Moth (DFTM)?