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Linda from Mccall, Id writes

I have scale & adelgids and Rhizosphaera needle cast on several spruce trees

What is the active ingredient(s) that work best as a topical spray and systemic drench to control the following: Fungus: needle cast Insects: scale & adelgids I'm not sure fertilome triple action will help as needle cast is not listed. Any advice is welcomed, so frustrated.


Ferti-lome Liquid Systemic Fungicide II would not be a good option for either adelgids or scale on the spruce trees. The only systemic product we have the is labeled for Rhizosperea needle cast is the Clearys Spectro 90 WDG Fungicide. Keep in mind that many products may still bleach the blue spruce, which is very common among fungicides for these trees. Dominion 2L is labeled for soft scale and armored scale (suppression) as a systemic drench application and will also help with the adelgids.

Answer last updated on: 05/05/2021

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