My oleanders have recently gotten small white spots on them. They do not look like an insect. Spots are not clustered together. They have spread out everywhere. Any idea what they are and if a problem? I live in Houston.
Check the link below and determine if what is on your Oleander resembles this problem:
If so, then the problem is Oleander Scale and can be controlled by applications of horticultural oil sprays. It will probably require multiple sprayings and you'll need to cover all leaf and stem surfaces. Once the scales are dead, the actual white scale will not fall off until that leaf drops in another season or two. But I'd recommend that if this is the problem that you plan to apply the oil sprays every year on a schedule until all of the new growth comes out clean and stays clean.
If you think that you've got something else other than Oleander Scale, please e-mail us a photo at Email Kara so that we might more accurately identify the problem.