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Fruit Trees       Bookmark and Share

Several types of fruit trees are suitable to grow in Minnesota. Most notably are apple trees; however, cherries, pears, and plums also perform well in our landscape. Several fruit trees are not only used for fruit production but also work well for focal points in a garden. Many fruit trees require planting two varieties for cross-pollination.

Tips for Growing Fruit Trees
Light
events & seminars Full sun is best.
events & seminars Will grow in part shade but will produce less fruit.
Soil
events & seminars Prefers fertile, well drained, light soil.
events & seminars Mix existing soil with organic matter, such as compost.
Planting
events & seminars Dig the hole wider and deeper than the existing root ball.
events & seminars Plant at the same depth as in the container.
Mulch
events & seminars Provide 2-4 inches of mulch.
events & seminars Mulching cools the soil, conserves water and helps with weeds.
Watering
events & seminars After planting, water well.
events & seminars To ensure strong root growth, apply Plant Starter.
events & seminars Once established, trees require an average 1” of moisture per week.
Fertilizer
events & seminars Fertilize with a balanced fertilizer such as 10–10–10 each spring
Spray
events & seminars A regular spray program helps ensure a disease-free harvest.
Pruning
events & seminars The best time to prune all fruit trees is in March.
events & seminars Use a looping shear or pruning saw.
events & seminars Remove dead branches and suckers.
events & seminars Prune any branches that cross each other.
events & seminars Prune branches that are growing up from the center of the plant.
events & seminars Prune branches that are growing down.
Winter Care
events & seminars Wrap trunks with tree wrap and remove in the spring.

Troubleshooting Problems with Fruit Trees
Apple Maggot
Apple Maggot
events & seminars Apple maggots cause two types of injury.
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The first injury damages the area around the site where the eggs are laid. The flesh stops growing, resulting in a sunken, misshapen and dimpled area.
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The second injury occurs as the maggots tunnel through the flesh. As a result, the pulp breaks down, discolors and starts to rot. (Pictured)
events & seminars Control by discarding any apples that have fallen to the ground.
events & seminars If the problem is extreme, apply an insecticide two days after any rainfall, irrigation or sprinkling of 1/2 inch or more beginning July 1.
Apple Scab
Apple Scab
events & seminars Scab infections on leaves start as olive green to brown spots with an irregular or feathered edge.
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As leaf infections grow, they may merge together and assume a dark brown velvety appearance.
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Severely infected leaves may turn yellow and drop prematurely.
events & seminars Scab infections on young fruit start out as olive green to brown spots.
events & seminars The best way to deal with apple scab is to avoid it altogether by planting disease-resistant varieties.
events & seminars Sprays should start when the leaf buds have swollen and begun to open so that about half an inch of leaf tissue is visible.
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Check fungicide labels for the recommended spray interval.
Cedar Apple Rust
Cedar Apple Rust
events & seminars Cedar-apple rust causes leaf spots on apple and crabapple trees.
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Leaf spots are first yellow, then bright orange-red.
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Very infrequently, fruit may exhibit a similar infection.
events & seminars The best way to deal with apple scab is to avoid it altogether by planting disease-resistant varieties.
events & seminars Sprays should start when the leaf buds have swollen and begun to open so that about half an inch of leaf tissue is visible.
events & seminars
Check fungicide labels for the recommended spray interval.
Coddling Moths
Coddling Moths
events & seminars Coddling moth larvae often tunnel towards the apple cores and feed on the seeds before exiting the fruit.
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Crumbly golden-brown excrement is sometimes found at the hole where the larva exited the apple.
events & seminars Control by discarding any apples that have fallen to the ground.
events & seminars The best timing is to spray at petal fall, i.e. when most or all of the petals have fallen from the apple blossoms.
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Do not treat before this occurs; sprays will be ineffective and will also kill pollinating bees.
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Make a second spray, 7-10 days later (check the label for the exact interval).
Curculios
Curculios
events & seminars Plum curculio adults are mottled brownish, blackish, and grayish weevils or "snout beetles.”
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The slit cut in the apple’s skin by the female becomes a tan patch of apple skin with a distinctive shape.
events & seminars The best timing is to spray at petal fall, i.e. when most or all of the petals have fallen from the apple blossoms.
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Do not treat before this occurs; sprays will be ineffective and will also kill pollinating bees.
events & seminars Make a second spray, 7-10 days later (check the label for the exact interval).
Asian Lady Beetle
Asian Lady Beetle
events & seminars If beetles are found feeding in apples, they are multicolored Asian Lady Beetles.
events & seminars They only infest fruit that is already damaged. Picking up fallen apples and removing damaged apples still on the tree will help reduce the number of Lady Beetles in your apple planting.
events & seminars Insecticides are not a practical option.
Leaf Spot
Leaf Spot
events & seminars This disease is caused by a fungus.
events & seminars Control measures for leaf spot should include raking leaves in the fall and pruning dead or dying branches to reduce the number of new infections the following year.
events & seminars The disease seldom causes serious damage and no chemical control is necessary. However, severe defoliation can cause reductions in fruit quality, yield and plant vigor. Therefore fungicides may be necessary on edible fruit trees.

Related Bachman's Information

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Currants & Gooseberries
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Raspberries
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Grapes
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Blueberries


Bachman's Floral, Gift & Garden Centers
Your local garden expert since 1885.
bachmans.com | ©Bachman's 2012

Select source information provided by the University of Minnesota Extension, www.extension.umn.edu.

Last Updated: March 2012 

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