Your tree had a fungus called Black Knot. You need to prune out any infected areas, preferably before bud break.
Prune 2 to 4 inches below each knot. If pruning is not possible because knots are present on major scaffold limbs or the trunk, they can be removed by cutting away the diseased tissue down to healthy wood and out at least 1/2 inch beyond the edge of the knot. Burn or bury the prunings in early spring.
Fungicides are necessary and will provide the greatest benefit if applied before rainy periods, particularly when temperatures are greater than 55 degrees F. You need to maintain pruning, too.
Free Email Newsletters
Almanac Weekly Companion:Editors handpick timely topics: weather, gardening, the Moon, folklore, and more.
The Almanac.com General Store: Great savings, exclusive offers!
Almanac Recipe Box: Our best recipes delivered twice a month.
Great Almanac Giveaway: A monthly chance to WIN a fabulous prize.
Check out this month's prize: from Almanac.com
Enter to win!
Visit the Almanac Live!
See where we live.
Look through the Almanac webcams.
Visit our sister Web site: www.YankeeMagazine.com
Custom programming and server maintenance by Reinvented Inc.
©2014, Yankee Publishing, Inc., P.O. Box 520, Dublin, NH 03444, (603) 563-81112014-07-25 00:18:54