Rosemary Plants
Q.

Rosemary

Anonymous added on June 1, 2011 | Answered

I have a white mucus that is coming out of the branches. What is it, and is it harmful?

    A.
    A.Answers to this queston: Add Answer
    Nikki
    Certified GKH Gardening Expert
    Answered on June 2, 2011

    If the substance were powdery in nature, I would say powdery mildew. However, in this case, it sounds more like you have a pest of some kind, perhaps scale, spider mites, or even whiteflies. They can sometimes be hard to see., so check the plant carefully for pests. Spraying it daily for a week or so will help to reduce their numbers and treating the plant with an organic pesticide should finish them. These recipes will help with that: https://www.gardeningknowhow.com/special/organic/natural-home-pesticides-organic-garden-pest-control.htm

    In addition, you could try treating the plant with neem oil. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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