Revised January 1982. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Subject:Apples -- Diseases and pests -- Control -- Oregon -- Willamette River Valley Pear -- Diseases and pests -- Control -- Oregon -- Willamette River Valley Spraying and dusting in agriculture -- Oregon -- Willamette River Valley
