Question
I live in South Ga. and have several pear trees that need fertilizer. When, how much and what kind do I use?

Answer
Vigorous shoots are more vulnerable to fire blight, so if blight is a problem, use little or no fertilizer. As a general rule for newly planted trees when growth begins, apply 1/2 cup of balanced fertilizer (13-13-13 or equivalent) in a 2 foot circle around the tree. Keep fertilizer at least 6 inches from the tree trunk to avoid fertilizer burn. Each spring after growth starts, apply 1/2 cup of 13-13-13 (or equivalent) per year of age through the fourth year. Continue to apply about 2 cups per tree each spring. If fire blight is a problem, discontinue fertilizer applications. If new growth is less than 6 inches per year, increase the amount of fertilizer. Mature trees growing in well-fertilized lawns generally receive adequate nutrition through lawn fertilization.