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Richard from Darien, Ct writes

Can Bonide INFUSE Systemic Disease Control be used on Colorado blue spruce without damage to color to control needle rust?


While the Bonide INFUSE Systemic Disease Control is labeled for some conifer diseases, it is not labeled for needle rust on blue spruce – only on Douglas Fir and Shasta Fir.  We would instead recommend Clearys 3336F for various rusts. Be sure that you have the correct disease identification so that you can use the best treatment.

Answer last updated on: 03/23/2020

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