bag worms

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  1. T

    Natural treatment for Rhizosphaera?

    Hello: I'm searching for a natural treatment for Rhizosphaera on Colorado Blue Spruce trees. Yes, I'm aware of chlorothalonil, copper hydroxide or mancozeb, but I'm looking for something less toxic. Would Neem Oil be a possibility? I'm also trying to control bagworms on those trees. I found a...
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