News Articles

A pest of apples, including ornamental malus species, the apple leafcurling midge larvae feed in the growing shoots, causing gall-like thickening and rolling the leaves. The…

Are you interested in seeing natural enemy and psylla/mite levels in WA and OR pear orchards? Scouting data for 16 WA and OR locations is…

WSDA is offering on-farm technical assistance to train growers on proper calibration techniques that can reduce drift from airblast sprayer applications. Properly calibrated equipment is…

Without any intervention, codling moth numbers increase about four-fold from generation to generation. Therefore, targeting the first generation is important to reset the population size…

The following questions arrose during the discussion at the end of the presentation by Dr. Matthew Whiting on Flowering, fruit set, and pollination biology hosted…

New research results confirm resistance to Group 11 fungicides. More than half of the powdery mildew isolates had developed various levels of DMI (Group 3)…

Written by Tianna DuPont, WSU Extension. February 5, 2020. Update April 15, 2020. Fig. 1. X Phytoplasma symptoms in Rainier cherries (left) versus healthy cherries…

In the face of relentlessly increasing labor costs and frequently disappointing returns, many pear growers are looking for ways to reduce their input costs and…

The purpose of this report is to show the fruit size distribution of two maturing orchards between the years 2010 to 2016 (years 2-8 of…

Apple decline, an emerging problem for apple production in both the U.S. and Canada, is characterized by the rapid dieback of young trees. Many potential…