Brugmansia

Question

Can you please tell me how to prevent bugs from attacking the above plants? Last year all the leaves on our plants seem to have developed rust-like spots that attacked most of the plants.  They did flower, but we’re not sure what was attacking the leaves.

Answer 1

I would treat the plants with neem oil. It will kill both any bugs or fungus that attack the plant and it is safe for people, pets and beneficial bugs. Here is more information:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm