Q.Disease on wormwood
White nodules on wormwood, stems, leaves.

Downtoearthdigs
Answered on August 13, 2015
It could be Mealy Bug or scale.
Treat with neem oil.
Here are links for you.
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/edible/herbs/wormwood/wormwood-plant-growing-sweet-annie.htm
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