Tiny bulbous red growths on leaves?

[anemone]

Hello! Just wondering if anyone can identify what is wrong with this plant/causing these red growths?

 

[Chuck]

Hello! Just wondering if anyone can identify what is wrong with this plant/causing these red growths?

View attachment 37969 View attachment 37970

Do they rub off and smear on your fingers?

 

[Owdboggy]

Work of the Red blister mite. Redcurrant bushes here really suffer from them. They actually do less harm than you would think, but obviously they make the leaves rather unsightly. No cure, except to remove the affected leaves and hope the bush grows new ones.

 

[Chuck]

Work of the Red blister mite. Redcurrant bushes here really suffer from them. They actually do less harm than you would think, but obviously they make the leaves rather unsightly. No cure, except to remove the affected leaves and hope the bush grows new ones.

Is it a mite or an insect. Neem works well on mites over here. I've never seen this particular menace before.

 

[Owdboggy]

It is actually an aphid. So, control would be by spraying the underside of the leaves with whatever takes your fancy.
If you look very closely at the stems of that shrub you can see the discarded skins of the aphids.

 

[Marck]

Greetings welcome to the Forums.

The plant pictured is poison Ivy (Toxicodendron radicans). The red blisters are the work of thePoison Ivy Gall Mite
(Aculops rhois). It is not an aphid, but a 'true' Eriophyid mite (Eriophyidae, Acariformes) that parasitizes various species of Toxicodendron and Rhus, both in the Cashew Family (Anacardiaceae).