Scale On Yew

Question

I am confused about the type of scale this is. It seems that the white fluff occurs in different spots than the brown shelly things. The images with the swab are – taking some of the cottony stuff off – then alcohol dipped – then smushed.

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Answer 1

You may have mealybugs as well as armored scale.

https://www.gardeningknowhow.com/plant-problems/pests/insects/control-plant-scale.htm

https://www.gardeningknowhow.com/plant-problems/pests/insects/what-is-armored-scale.htm

https://www.gardeningknowhow.com/plant-problems/pests/insects/what-is-soft-scale.htm