I thought it would be a good topic for this week. Leaf spot seems to be a
big problem this growing season. It seems to be on mostly older more
established trees.
What is leaf spot? It is a disease caused by a fungus or bacteria that forms
spots on the foliage. Color and size of the spots will vary and holes can
develop. Often leaves will turn yellow and drop before fall.
How is leaf spot prevented? You will want to avoid crowding your plants
(trees and shrubs). When an area is heavily populated with trees and shrubs,
thin out the branches to create better air flow. Plant an assortment of
plant varieties. In fall, rake up the leaves to compost or burn. Fertilize
in spring with a complete timed release fertilizer. Water deeply during dry
periods.
How to control leaf spot - If leaf spot continues for several years, then it
is time for fungicide use. However, you will need to identify the particular
leaf spot disease that is attacking your trees. Take several leaf samples to
your local agricultural extension agent for identification. Timing is
everything with the fungicide applications. Follow the directions on the
fungicide label.
Here is a link to the University of Missouri Extension site with an article
on leaf spot which includes pictures and detailed information on this
problem.
http://agebb.missouri.edu/pdc/diagnosticreports/leafspot01.htm
Don't forget to visit our Falltacular Sale Page and our Landscaping Ideas
Slideshow. We have some great items featured on our Homepage and New
Additions Page so be sure to check them out, too.
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Until next time...Cheryl
