Apple tree problems

Asked December 7, 2012, 12:44 PM EST

My apple trees( about 12 semi-dwarf varieties) are heavily loaded with moss.The fruit are very scabby.I suspect spraying and pruning are in order.How, how much,when?Do I prune then spray or does it matter?

Yamhill County Oregon trees and shrubs pruning apples horticulture

2 Responses

Thanks for the question, I took a look at the OSU site and they suggest that you wait and prune in early spring: "Prune when all danger from fall or early winter freeze has passed, but before full bloom in spring. Sweet cherry trees may be pruned in August when there’s less danger of bacterial infection." Here is the source: http://extension.oregonstate.edu/catalog/pdf/pnw/pnw400.pdf Here is info on when to spray: http://extension.oregonstate.edu/umatilla/sites/default/files/master_gardener/backyard_fruit_trees.pdf

Thanks for the question, I took a look at the OSU site and they suggest that you wait and prune in early spring: "Prune when all danger from fall or early winter freeze has passed, but before full bloom in spring. Correction made." Here is the source: http://extension.oregonstate.edu/catalog/pdf/pnw/pnw400.pdf Here is info on when to spray: http://extension.oregonstate.edu/umatilla/sites/default/files/master_gardener/backyard_fruit_trees.pdf