My sorrel managed to survive the overwatering I gave it (thank you Sacha
for your advice about watering in general) but now it is suffering from
an insect infestation. The insects are small (about twice the size of
spider mites), brown with a reddish tinge, don't have wings, mainly
cling to the stems and are slightly sticky when you wipe them off.

Can anyone tell me what they are and how I can get rid of them? I'm
afraid I can't post a photo as I don't have a digital camera.

Thank you in advance.

Deborah