Steve Nagy: Hi! I am Steve Nagy from the Davey Tree Expert Company on behalf of the Tree Care Industry Association. And today, I am going to be talking about the proper techniques for tree fertilization.
At some point in a tree's lifespan it will need to be fertilized. Primarily because trees that exist in the forest scenario are receiving their nutrients through continued recycling of leaf litter and plant material; when you place a tree in the landscape situation, you often find that trees are void of those nutrients.
So something you can do to fix this problem is to re-create the tree's natural environment by establishing mulch rings. This can be a problem for most people because then you would have to mulch your entire yard. Although, fertilizer alone may not improve the overall health of the tree stressed by certain environmental conditions, it is a step in the right direction.
To know if your tree is suffering from certain nutrient deficiencies, look out for these symptoms; a slow rate and low amount of annual growth on twigs and trunk, smaller than normal foliage, off-color foliage, increased number of dead branches, tip dieback in branches, and increased rates of disease and insect problems. Tress that have these signs or symptoms, will respond to a fertilization treatment. If you suspect your tree is lacking nutrients, call a professional arborist. They will be able to come out, and tell you what's wrong with the tree, and then also come up with a solution.
Nutrient deficiencies can be devastating on a tree's lifespan. But, with proper fertilization treatments done by a professional arborist, you can greatly improve your tree's health.