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Spider mites? Or something else?

Posted: Tue Sep 06, 2022 12:47 pm
by mmcavall
I have observed these lesions in some of my cacti .
It occurs only in Ferocactus and Matucana.
The increase of the lesions is very slow. If it is a fungus, it is not agressive. I believe that it is caused by spider mites but I cant find them.
Any help will be much appreciated
P.s. : I gave the plants a hot bath to kill any spider mites...
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Re: Spider mites? Or something else?

Posted: Tue Sep 06, 2022 5:43 pm
by keith
looks like something else to me . the raised bumps I don't think spider mites cause that I've never seen it just the orange scaring from spider mites.

I would try a fungicide plus look carefully for spider mites on other plants. they like turbinicarpus in my collection.

Re: Spider mites? Or something else?

Posted: Wed Sep 07, 2022 1:15 am
by mmcavall
Thanks Keith
I'll take a closer look. What kind of fungicide would you use? A systemic one?
Thansk a lot!

Re: Spider mites? Or something else?

Posted: Fri Sep 09, 2022 2:39 pm
by keith
fungicides I dont have too much advice a systemic one would be worth a try .

Re: Spider mites? Or something else?

Posted: Fri Sep 09, 2022 4:24 pm
by mmcavall
thank you Keith!