What do you spray on dormant apple trees?
Spray sulfur in early January and then at least two weeks later make a spray with dormant oil. Then make another copper spray in mid-to late February. Don’t combine copper and sulfur or sulfur and oil in the same tank to minimize the risk of damage to tree bark.
What can you not spray with dormant oil?
Do not apply if a sulfur based pest control product has been applied within the previous 30 days as the oil and sulfur combination can be toxic to plants. Fruit trees should only be treated with dormant oil when dormant; which is prior to bud swell.
When should you spray dormant oil?
Dormant oils should be applied in late March or early April before the plants show signs of breaking dormancy (before “bud break”). Dormant oils applied in February or early March are not effective as insects are not actively respiring at this time and, therefore, are not vulnerable to the oil’s suffocating effects.
Do apple trees need dormant spray?
Apples, crabapples, plums, quince, and pears all benefit from dormant oil, as do gooseberry and currant bushes. Other fruit-bearing trees and bushes don’t have any need for spraying of dormant oils, as they don’t often harbor the same pests, but it won’t hurt to do so if desired.
When should you spray your apple trees?
Use general purpose fruit tree spray at 1- to 2-week intervals following key plant development observations. Apply the spray first at green tip, followed by pre-bloom, full pink, petal fall, first cover (1 week after petal fall), and second cover (2 weeks after petal fall).
When Should I spray my apple trees?
When should I spray my apple trees? Answer: The main objective in spraying apple trees is to prevent insect damage to the fruit. The most important period to spray apple trees is from petal drop until just prior to harvest.
How late can you spray dormant oil on trees?
Timing is everything. Dormant oils should not be applied until a tree has gone completely dormant, but also before new growth occurs. Applications in late fall or early spring are ideal when temperatures are above freezing (over 40 degrees F is ideal), but also below 70 degrees F.
When should I start spraying my apple trees?