FEEDBACK

WSU Decision Aid System

Search Results for "apple"

Which Type of Apple Sunburn is in Your Orchard?

Monday May 23, 2016 1:30pm
Sunburn browning is the most prevalent type of sunburn, and is caused by high fruit surface temperatures (FST) and ultraviolet radiation. The FST required to induce sunburn browning varies by cultivar, but is in the range of 113 to 120 °F (45 to 49 °C).

Spider Mite Control During the Summer

Monday May 16, 2016 1:30pm
There are currently lots of options to control spider mites in orchards. However, preventing outbreaks by avoiding pesticides toxic to predatory mites and their alternative prey is always first choice. If uncontrolled, spider mites can go through a single generation in 7-10 days during summer and increase their numbers exponentially. Monitoring helps to follow spider mite population growth and to intervene when necessary.

Stinkbugs Seek Orchard When Shrubs Dry

Monday May 16, 2016 1:30pm
Adult stinkbugs puncture fruit with their beaks to feed on the fruit flesh. Stinkbug damage in apples can occur beginning in mid-summer and accumulate through the harvest period when new adults move into the orchard from outside habitats.

Woolly Apple Aphid

Friday February 19, 2016 2:38pm
Woolly apple aphid (WAA) has become more common over the past few years and is a quarantine threat for export to certain countries. WAA can be found feeding on the roots as well as occurring in the tree canopy where it can appear as a white cottony mass on pruning scars or shoots.
Decision Aid System v. 6.3.35.2 (DAS) - Tree Fruit Research & Extension Center
1100 N Western Ave, Washington State University, Wenatchee WA 98801, 509-663-8181
Copyright © 2017 Board of Regents
Washington State University | Accessibility | Policies | Copyright