Last year my apple tree produced a lot of small, wormy apples. What do I need to do to get larger apples without worms? If you want apples without worm holes, regular biweekly spraying is necessary.

In Fielding Questions, readers also asked about whether wood ash helps soil and if apple trees should be sprayed annually with insecticide.

If insecticide sprays are applied too late, the pests enter and eat inside the fruit where they are protected from sprays. If applied too early, the spray will dissipate and be ineffective when the ...

Q: Should I be spraying my apple trees now? They have had good apples but we have had more problems in the last couple of years with apple maggots. A: No, this is not the time to spray. You are in ...