How to Identify Spider Mites

[@Dishner-ws5lg]

What type of fertilizer would you use for Spruce in the fall?

[@VanZeelandNurseryLandscape]

This depends upon your objective is (are you trying to remedy a specific problem or are you trying to boost the plants growth) and what your current soil's condition is (ideally, you would test your soil before determining what fertilizer rates to apply). Without any additional knowledge, a multi-purpose fertilizer, such as 10-10-10, would generally be beneficial. Having said that, wait until spring to fertilize your spruce, before the new growth occurs, rather than fertilize in the fall.

[@Dishner-ws5lg]

@@VanZeelandNurseryLandscape the original owners had placed the Norwegian Spruce here went they built the home. They are roughly 30-40ft tall now. They stated they have never fertilized or trimmed them any since planting. So, I just assumed that they could use some type of fertilizer product to keep them healthy. I will order a soil test kit in the spring an apply a fertilizer based on what the test says is lacking! Last question, the Hemlocks on another part of the property have a spider mite problem, could I spray the Spruce with some Neems Oil as a preventative? I was not sure if neems oil was safe for spruce or not. Thank you!

[@VanZeelandNurseryLandscape]

@@Dishner-ws5lg Since you aren't trying to treat a specific condition, your spruce may not need any fertilization. Having said that, a multi-purpose fertilizer (like the 10-10-10) or something more specific (like Evergreen-tone) would give them a little boost. It is a little unclear what you want to put the neem oil on - spruce or hemlock. As you may be alluding to though, neem oil can be phytotoxic to certain plants and/or plants that are exposed to full sun at the time of spraying. Having said that, if your plant is in full sun, you may want to use an insecticidal/miticidal soap instead.