Hi, Ralph: Thanks for this great question, the answers to which in some part depend on your location, what types of apples you have, and whether there are known infestations on hand or nearby. The best thing to do is an online search for 鈥渨hen spray apple trees鈥 and then read up on the subject. But basically the thing to do is neem oil now to get at any overwintering pests, and then a fixed copper spray right before bloom for brown rot and fire blight. Then come the times throughout spring and summer when various organic pesticides and fungicides might be necessary. So, do an online search, but also contact (or go online to) your local state cooperative extension service—they will be your absolute best source of information on when to do what for apples. Thanks again, and good luck! P.S. We should add that the #1 mistake that people make in spraying apple trees is not in the timing or in what is being sprayed, but in not being thorough enough.
Hi, Ralph: Thanks for this great question, the answers to which in some part depend on your location, what types of apples you have, and whether there are known infestations on hand or nearby. The best thing to do is an online search for 鈥渨hen spray apple trees鈥 and then read up on the subject. But basically the thing to do is neem oil now to get at any overwintering pests, and then a fixed copper spray right before bloom for brown rot and fire blight. Then come the times throughout spring and summer when various organic pesticides and fungicides might be necessary. So, do an online search, but also contact (or go online to) your local state cooperative extension service—they will be your absolute best source of information on when to do what for apples. Thanks again, and good luck! P.S. We should add that the #1 mistake that people make in spraying apple trees is not in the timing or in what is being sprayed, but in not being thorough enough.