Weigela Shrubs
Q.

Brown leaves on Weigela bush

Zone EX38 7DD | sueebaxter added on June 18, 2015 | Answered

My Weigela has suddenly developed brown leaves on one side of the bush. Do you know the reason for this?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on June 19, 2015

Weigela Shrubs can become infected with Mealybug or Gray Mold.
Environmental issues also could cause brown leaves. If it's a new planting Leaf Scorch could be a possibility.
Inspect the plant and I would recommend a Neem Oil treatment. It is both a fungicide and pesticide.

https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

https://www.gardeningknowhow.com/ornamental/shrubs/weigela/growing-weigela.htm

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