What is white flaky stuff on the stalk of echinacea plants?

I don’t know whether it is mealy bugs, but appears like there is confectioner’s sugar type of powder (bugs) on the stems of my plants? I can wash it off with water hose, but it returns.

How do I kill whatever this growth is please? I’m sure it is bugs. Does Neem oil work?

Many thanks,

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1 Comment To "What is white flaky stuff on the stalk of echinacea plants?"

#1 Comment By GKH_Susan On 06/11/2020 @ 7:09 pm

Mealy bugs can be a bit of a nuisance, can't they… There are a few things that you can do.

This article will help: https://www.gardeningknowhow.com/plant-problems/pests/insects/mealybugs-control.htm ^[1]

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