I have used cut out cardboard disc in the top of pots/bags for weed control. You need to check under them frequently for signs of pest, but they work great. Also, used the felt like clumps of shed hair/wool from my meat type, hair sheep, for weed mulch and for composting, with great results, a...
I once had a license in my state for horticultural chemical applications. After, many years, I walked away from that well paying career. The chemical industry is ran mostly by fools, liars, criminals, cheats, frauds, people without morals, greedy and self serving corporate scumbags! They...