Q.Are The Nodules On Mandevilla Harmful To The Plant.
Can these be trimmed off. It was overwintered indoors, very small plant not very robust

GKH_Susan
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on June 7, 2021
Without a photo, I suspect it is some type of scale pest. Here is how to get rid of them.
https://www.gardeningknowhow.com/plant-problems/pests/insects/control-plant-scale.htm
https://www.gardeningknowhow.com/ornamental/vines/mandevilla/mandevilla-pest-problems.htm
https://www.gardeningknowhow.com/ornamental/vines/mandevilla/mandevilla-plant.htm
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