Arborist b 480-969-8808 Warner has been treating sick trees for over 50 years. If you look to the left there are links to our websites on Citrus Trees - Palo Verde Trees – Pine Trees – Queen Palms and the Warners Tree Surgery Website. There is also a link to our YouTube channel.


Tree service for Ash tree diseases

Bagworm in sick ash trees



Bagworms eat leaves of many trees and shrubs. Larvae hatch in May or June and immediately begin feeding. Each larva constructs a bag that covers its entire body. Larvae pupate in the bags. When adult males emerge from pupal cases, they fly to find females and mate. After mating, the female lays eggs in the bag and it overwinters on a tree or shrub. Larvae emerge in spring to continue the cycle.

Leaves are chewed and branches or entire plants may be defoliated. Brown, 1- to 3-inch-long "bags" hang from the branches.

Spray with Bacillus thuringiensis (Bt) between late May and mid-June to kill young worms. Handpick and destroy bags in winter to reduce the number of eggs and young the following year.

I hope you found this page about Ash Tree Diease useful. If you have any questions about Ash Tree Disease please contact our Tree Service to schedule an appointment. We have been treating sick ash trees for over 50 years. We currently serve, Mesa, Gilbert, Chandler, Scottsdale, Phoenix and all of Maricopa County.

We currently serve - MesaGilbert - Tempe - Chandler - Queen Creek - ScottsdaleParadise Valley - East Phoenix Arizona.