Needle cast

Asked June 22, 2019, 4:29 AM EDT

Typically how many years does it take needlecast to be detrimental to the spruce tree?

Mackinac County Michigan trees and shrubs disease issues evergreens conifers

1 Response

Hello. It is not possible to predict how quickly needle cast will kill a tree. Weather plays a large part and also other factors such as how many trees are close together and how much air movement there is around the trees. Pruning the lower branches off could possibly help to increase air flow and help the needles stay drier.