apple trees - Knowledgebase Question

osborn, Ma
Question by suzypostal
March 25, 2010
what type of fertilizerand spray should i use i have six apple trees 2 years oldalso live in maine willfertilizing once a season be enough or more often

Answer from NGA
March 25, 2010


Apple trees can be fed in the spring if growth is poor or leaf color is pale. Use a general purpose 10-10-10. It's a fact of nature that in order to grow tree fruits, you need to commit to the time and energy required to protect them from insects and diseases. To avoid diseases, your apple trees can be sprayed with Bordeaux (lime-sulfur). This fungicide must be applied early and thoroughly to protect new growth. Apply according to label directions; as the buds break until the leaves are fully expanded. Do this at prepink, pink, calyx, and first cover. Since the fungus overwinters in fallen leaves and fruit, be sure to thoroughly clean up and dispose of plant debris in the fall months. The horticultural oil is effective against overwintering scale insects and insect eggs and should be applied in the winter. It is sold as dormant spray. Hope this answers all your questions.

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