My brugmansia leaves are being eaten by what looks like ants or very small, very black spiders. Any advice on how to deal with this please?
Certified GKH Gardening Expert
Spider mites and aphids are among the most common pests of this plant--both of which can be taken care of by treating the plant with neem oil. Here is more information: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm