This is a bad year for fireblight which is a bacterial disease which affects mostly apple, pear, crabapple, hawthorn and Mt. Ash. It is spread in the presence of moisture and enters the trees through wounds and open blossoms. Colorado is the worst state in the US for fireblight.
Because of our moist spring and extra wounding caused by hail, there is a lot of infection. Symptoms include black, hooked twig ends, brown or blackened leaves, dried up fruits and sunken cankers that can be a dull orange or black. Fireblight is a difficult disease to manage because there is no cure. Spraying chemicals is not recommended by CSU because they are not very effective, timing is critical and spraying must be repeated.[Read More]


Boulder Valley Rose Society
Got a fence or a pergola waiting for a fast-growing vine? Grow your own table grapes or wine grapes! The grape vines we sell, both table and wine varieties, are the most cold-hardy you will find anywhere. Most of them come from the northern Wisconsin breeding program of the late Elmer Swenson. Remarkably, three of his selections are seedless! All of them have good flavor, all are proven successful in Colorado in Zone 4 and above, and also succeed in high summer heat.












