Q.holly bush
Our holly bush has a white grainy coating on the stems and branches. Could this be a type of fungus? It’s not on the entire bush. Thank you for your reply.
Downtoearthdigs
Answered on September 23, 2015
It is possible that it is scale or mealybugs. I like to treat both with neem oil. It is very effective and safe. These articles will help: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm
https://www.gardeningknowhow.com/plant-problems/pests/scale-bug-how-to-control-plant-scale.htm
https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm
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