Fact Sheets - Fruit Diseases
For more fruit disease information reference the Intermountain Commercial Tree Fruit Production Guide and Utah Home Orchard Pest Management Guide
Coryneum Blight or Shothole
Coryneum blight, also called shothole blight, is a fungal disease of stone fruit trees including peach, nectarine, apricot, cherry, and almond (ornamental as well as nut-bearing); however, the most commonly affected are apricot, peach, and nectarine.
Fire Blight of Pears and Apples
Fire blight is a bacterial disease of rosaceous plants. Economically, it is most serious on pears and apples. The bacterium that causes fire blight can be spread by insects, contaminated pruning or grafting tools, infected grafts, and any manner that carries the bacterial pathogen from an infected plant to one that is not.
Fire Blight Annual Management Guide for Utah
The popular Fuji, Gingergold, and Gala are more susceptible to fire blight. In addition, fire blight spreads more rapidly in high-density orchards.
Peach Leaf Curl
The disease is caused by the fungus Taphrina deformans. Disease is most severe during cool wet conditions. Foliage is susceptible until it is fully expanded. Infected leaves are distorted and discolored (yellow, red or sometimes purple).
Streptomycin Resistance of Fire Blight
Fire blight is an important disease of apple and pear in Utah. Antibiotic streptomycin frequently used to control fire blight. Resistance to streptomycin first detected in 2006.
The Backyard Orchard - Apple Pests
A short summary of the main diseases of apples and how they are managed by the backyard fruit grower.
The Backyard Orchard - Apricot Pests
A short summary of the main diseases of apricots and how they are managed by the backyard fruit grower.
The Backyard Orchard - Cherry Pests
A short summary of the main diseases of cherries and how they are managed by the backyard fruit grower.
The Backyard Orchard - Peach and Nectarine Pests
A short summary of the main diseases of peaches and nectarines and how they are managed by the backyard fruit grower.
The Backyard Orchard - Pear Pests
A short summary of the main diseases of pears and how they are managed by the backyard fruit grower.
The Backyard Orchard - Plum Pests
A short summary of the main diseases of plums and how they are managed by the backyard fruit grower.