Carol from Wa writes
I'd like to spray my semi dwarf apple trees to prevent apple maggots. One of my trees is just getting ready to bud out.
According the manufacturer, this product has been EPA regulated to only use 2 times a year. The best time to apply to see best results is after the petal fall, then your 2nd application can be 3-4 weeks later. After you apply the Bonide Fruit Tree Spray Concentrate it will kill for up to 1 week. If insects or disease is still present, you can apply a 2nd time.
Answer last updated on: 04/07/2021