For the last few months my lemon tree has been losing its leaves. I recently discovered a lot of citrus scale on the tree. I cleaned them all off. Im wondering if the leaf drop is due to the scale bugs or something else. Here is a few pics of some of the leaves. Thanks.
Leaf burn has many different causes. One of which is sometimes pests as they could infect the plant.
It looks like it might be one of the list below.
Environmental leaf burn Too hot / too dry
Bacterial leaf burn Reaccuring every year
Nutrient burn/deficiency Too much/too little fertiliser usually iron or manganese