Pests on my Oleander

Question

I found hard white dots on the stems of my Oleander and after much search online I haven’t been able to find out what they are.

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Answer 1

This is a scale. Using applications of Neem oil will prevent the critters from eating or laying eggs. Here's an article that will help: https://www.gardeningknowhow.com/ornamental/shrubs/oleander/common-oleander-pests.htm