Spider Mites

What is a spider mite?

They are typically less than 1 mm in length and differ from insects as they have only two body segments and four pairs of legs. Spider mites in Saskatoon can attack spruce, fir, juniper and cedar.

What kind of damage is caused by spider mites?

Spider mites feed on conifers, causing the needles to turn yellow and fall off. Eggs lay over winter at the base of the needles and hatch in the late spring. Immature stages typically feed on the lower branches and inner-most foliage, causing the most damage.

How do I control spider mites?

The City of Saskatoon does not have a control program for spider mites. Consult an arborist or local garden centre for options to control spider mites.