apples - Knowledgebase Question

Wanatah, In
Question by dec361
April 14, 2010
when too spray & with what? they are blooming now

Answer from NGA
April 14, 2010


If your apple trees are already blooming, you've missed the opportunity to spray them. 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. 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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