I've done a thorough spray inside and out of Top Buxus last Saturday, but spotted big caterpillars happily munching away on Tuesday. Been out there just now with the provanto ultimate, but I'm pretty much just using up my second bottle as it seems to do nothing. 😔 I had sprayed with it multiple times since first noticed the munch marks in April. I've seen worse Buxus hedges locally, but I'd say mine is 25 a% eaten now. They started early this year and my hedges are the worst ever.
I think I used Bug clear ultra last year and that sorted it, but couldn't find it in the stores. I've heard there is pesticide resistance already in the Buxus, it's the third year for us 🐛 I'll have to order it online.
I also have a moth trap in action and not caught a single moth, typically so great waste of £35.
Anyone else battling the caterpillars? Oh I will spray again with TopBuxud but it said leave two weeks.