Apple Scab Venturia inaequalis Apple scab is a fungus that is of major economic importance all over the world. This disease will occur every year, as the fungal spores travel with wind and rain. It can reduce the size and quality of the fruit, and cause defoliation of the entire tree. Apple scab can attack [...]
The secret life of soil CORVALLIS, Ore.—Soil is alive. Much more than a prop to hold up your plants, healthy soil is a jungle of voracious creatures eating and pooping and reproducing their way toward glorious soil fertility. A single teaspoon (1 gram) of rich garden soil can hold up to one billion bacteria, several [...]
Shot hole disease (Coryneum byerinkii or Wilsononyces carpophilusan) can be a problem in both flowering and fruiting trees in the home landscape. This disease thrives with our typical long periods of wet spring weather in the Pacific Northwest.
Fruit Production Regular insect and disease treatments generally have no affect on a tree’s ability to bear fruit, except to help increase the size and quality of each yield. The following are a few factors that can influence fruit production. Chill Factor: Most deciduous fruit trees need a minimum amount of “chill” in winter to [...]
