Leaf Curl Problem on Viburnum

Question

For two seasons, when the leaves develop, leaf curl sets in and has damaged a viburnum shrub. It looks like grey aphids (?) may be causing this. Can I prevent it? How do I treat it?

Answer 1

We have seen a lot of success with using neem oil on aphids. We would recommend that you try that. Here is more information that will help you:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/plant-problems/pests/homemade-aphid-control-a-natural-way-to-kill-aphids.htm