I use Stans in the inner tubes on Mrs Davesport’s and my own bikes. We live in an area with a lot of hedgerows that the farmers cut with a flail & at times the roads are covered in the little pests. Same as you, rides at certain times of year were plagued with flat tyres.
One of two things then happen when you get a thorn, it seals & goes unnoticed or it’s attached to a little twig that gets pulled out again. It’s been great…no more punctures 😀 The only downside is that when the tyre eventually has to be removed there’s usually at least a dozen or so thorns through the tyre into the tube.
Don’t ask me about tubeless. I’m not a fan.
D.