If your normal DIY spray uses a different horticultural oil, the baking soda should still work as expected. With just this ...

Horticultural oil is a category, and neem is a type ... The most common method for both is to spray them on plants to prevent ...

Dormant spray is a combination of lime sulphur (a mild fungicide) and organic horticultural oil. This mixture is excellent to clear up both moss and lichen on the branches and trunks of trees and to ...