What is on these Euro Plum Leaves

[Girly]

I am seeing this on all 6 of my Euro Plums… The Japanese plums right next to it seem unaffected! Any idea what it is?

Thank you!

[Bradybb]

Is it webby at all?Kind of look like Spider mites.Using about a 5 power or greater magnifier,they should be able to be seen.bb

[Girly]

Thank you @Bradybb - Yes I see plenty of webs and tiny white spiders

When I had sprinklers in the same area spider mites were not a problem. Now that I have switched to drip, looks like the spider mites are thriving in a nice dry & hot environment!

Its too hot to spray anything now. I hope if I spray horticulture oil a couple of times during dormant season, it will take care of the mites. For now, I’ll try to hose it down and try using a blower to see if that will blow off some of it.

Thank you!

[Bradybb]

Yes,blasting the leaves with a stiff spray of water,especially the undersides,every day for about a week,should help.
I’ve had some success using Lavender.Here is something,posted earlier.bb

Using Lavender as a Miticide

I’ve been looking for ways of controlling Spider mites in a greenhouse. In the past couple of years,they have killed about four trees.I’ve found some recipes and expensive chemicals in my search and just came across this information on a Marijuana growing forum.I guess they battle the little critters also. Found this on another site by Graywolf and he gave me permission to post over here. Hopefully this will help some with the battle of the borg. Lavender Extract: Organic Miticide jaykush, t…

[Stan]

There are a lot of insects that prey on spider mites and keep them at bay. Spider mite infestation (outside of a green house) is usually a sign that their natural predators have been eliminated by insecticides.

[Girly]

Thank you @Stan! I think you are right. I don’t see any lace wigs or beneficials this year.