I have an Apple Maggot pr... - Ask Extension
I have an Apple Maggot problem. It is mainly on my Harold Red tree. My Mackintosh tree isn't affected to any great extent. I do pick up fallen apples,...
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I have an Apple Maggot pr... #289531
Asked November 09, 2015, 2:56 PM EST
I have an Apple Maggot problem. It is mainly on my Harold Red tree. My Mackintosh tree isn't affected to any great extent. I do pick up fallen apples, but I was composting them rather than putting into the trash. I do spray with Seven and Bonide Fruit Spray. How effective is kaolin clay and where can I buy it? I saw another trap method using molasses, water and yeast but I didn't fully understand how to use it.
I have a second question, the leaves are yellow and have black spots on them. This is mainly on the lower limbs.
Thanks
Ramsey County Minnesota
Expert Response
Removing fallen apples is recommended to help control apple maggots. However, do not compost the apples. Dispose of them as household waste.
Kaolin clay is somewhat effective to control maggots but it must be reapplied after rain. "Surround" is the most commonly used and readily available kaolin clay on the market. It's sold by many Internet sources.
Both Sevin and Bonide Fruit Spray are labeled to control apple maggots. For best results be sure to apply these products strictly according to label instructions.
The milk jug and molasses trap is used primarily to control coddling moths, not apple maggots.
Go here to learn more about apple maggots and how to control them.
http://wimastergardener.org/?q=node/306
You might want to try bagging the fruit to defeat the maggots.
Kaolin clay is somewhat effective to control maggots but it must be reapplied after rain. "Surround" is the most commonly used and readily available kaolin clay on the market. It's sold by many Internet sources.
Both Sevin and Bonide Fruit Spray are labeled to control apple maggots. For best results be sure to apply these products strictly according to label instructions.
The milk jug and molasses trap is used primarily to control coddling moths, not apple maggots.
Go here to learn more about apple maggots and how to control them.
http://wimastergardener.org/?q=node/306
You might want to try bagging the fruit to defeat the maggots.
Thank you Bob. I guess you didn't see my second question about yellow leaves with black spots. I have a couple of pics
Thank you Bob. I guess you didn't see my second question about yellow leaves with black spots. I have a couple of pics
This appears to be apple scab, one of the most common apple diseases. Here is an Extension publication: http://www.extension.umn.edu/garden/yard-garden/fruit/apple-pest-management/apple-scab/
Apple scab is especially bad during wet humid summers. Note aside from selecting resistant plant cultivars, sanitation. Cleaning up fallen leaves and fruit will lessen the spread of this fungal disease. Pruning to open up the tree canopy, improving air circulation, and mulching the tree to to protect roots and overall health of the tree are important as well.
There are some fungicides that can help reduce scab. They are noted in the publication above. Be sure to read and follow all instructions. The label is the law.
Apple scab is especially bad during wet humid summers. Note aside from selecting resistant plant cultivars, sanitation. Cleaning up fallen leaves and fruit will lessen the spread of this fungal disease. Pruning to open up the tree canopy, improving air circulation, and mulching the tree to to protect roots and overall health of the tree are important as well.
There are some fungicides that can help reduce scab. They are noted in the publication above. Be sure to read and follow all instructions. The label is the law.
