Peach Tree Spray When To Spray Peach Trees For Bugs
When and What to Spray on Peach Trees Before bud swell: Apply horticultural dormant oil or a bordeaux mixture (a mixture of water, copper sulfate, and lime) in February or March, or just before the buds swell and daytime temperatures have reached 40 to 45 F. (4-7 C.). Spraying peach trees at this time is critical in order to get the jump on fungal diseases and overwintering pests such as aphids, scale, mites, or mealybugs....