scale on my spruces and pines
My spruces and pines are being overwhelmed by scale. What is the best product to use on such an infestation? When and how should it be applied?
Custer County Idaho
There are different tactics for controlling scale insects depending on what they are. Pine needle scale is different than spruce bud scale. It would be best to have your insect identified at your local extension office.
That being said, we have a good fact sheet on scale insects of conifers available at http://extension.colostate.edu/topic-areas/insects/scale-insects-affecting-conifers-5-514/ There are good pictures on this publication which may help you identify which one you are controlling.
I hope this is helpful!