Q.My Snowball Tree Had Damaged Leaves Last Year. It Looked Like Insects Had Eaten Holes In The Leaves And The Whole Thing Looked Unh
ealthy. What preventive measures could I take now to prevent this from happening this year? I don’t have pictures.
Certified GKH Gardening Expert
Since there aren't any photos of the damage, we will have to look at a few different things. You'll need to know if it is truly insect damage, or if there is a bacterial/fungal infection present. Sometimes, it can be both. There are fungicides, and insect treatments that work well. I use azadirachtin and pyrethrum for insects most often. They are natural substances and do a good job at insect control.
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/pyrethrum-in-gardens.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/azadirachtin-vs-neem-oil.htm
Sulphur compounds can be a good antifungal/bacterial. As can other natural remedies:
https://www.gardeningknowhow.com/garden-how-to/info/homemade-fungicide.htm
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
