Probably a discussion that has been here many times, but I'm newish to gardening so your help would be appreciated.
I have adult vine weevils eating a good few of my plants, mainly my laurel hedging which is infested ! Ive done my research and I've now got nematodes waiting to be used . When I put the nematodes into my open ground and pots can I also use a chemical solution, like Provado, to spray the foliage to deter the adults? Or will the chemical harm the nematodes ?