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Hot Springs, Ark. – Wet weather and cool temperature, two things needed to promote fungal growth, have
been abundant in Arkansas this year. Vegetable gardens, lawns, and landscape are
affected by fungal infections. Here are a few common ones to look for around your
Powdery Mildew – When it comes to prevalence, powdery mildew is No. 1. It occurs
on several ornamentals, most commonly on crapemyrtles, dogwoods, euonymus and roses.
Powdery mildew is considered mostly a cosmetic problem and can be very persistent.
It is recommended that you grow resistant varieties when available. Where powdery
mildew has occurred, the fallen leaves of the infected plants should be raked up and
destroyed in the late fall and winter to minimize the disease for the following season.
There are fungicide sprays that can be used, but gardeners need to be willing to make
frequent, precise applications. For more information, see extension fact sheet FSA
Photinia Leaf Spot – This purple-colored spot on red tip photinia is caused by a fungus.
It’s so detrimental that it is no longer recommended in the landscape. The fungus
is spread easily by splashing water and by wind. If the infection is very severe,
plant removal may be necessary. There are chemical controls, but they may require
frequent spraying over a long period of time. The fungus can also affect Indian Hawthorne,
but to a much lesser extent. The fungus usually kills the plant by repeated defoliation.
(See fact sheet FSA 6112)
Branch Canker in Leyland Cypress – Leyland Cypress is a common ornamental tree often
grown as a privacy screen or as an accent ornamental in home or commercial landscapes.
It has become increasingly popular as a Christmas tree. The cypress is very susceptible
to a fungus that causes the branches to die from the tips inward. The infection occurs
randomly on a plant and if something is not done about it, the tree may die. Drought
stressed trees tend to be more susceptible to the disease. For information about
branch canker, see fact sheet FSA 7536.
Dollar Spot of Lawn Grasses – Dollar Spot is a fungus disease usually seen on Bermudagrass,
but will also attack Zoysia and Centipede. This disease can be seen on poorly maintained
lawns, ones that aren’t irrigated or fertilized properly. In late summer or early
fall, homeowners will see small, straw-colored patches 2-3 inches in diameter. They
may go unnoticed until you have a lot of them together. The disease can be spotted
in the early morning, while there is still dew on the grass you can see the fungus
growing on the leaves, which looks like spider webs. It’s very helpful for diagnosis.
See fact sheet FSA 7541 for more information.
Zoysia Patch – Another fungal pest is Zoysia Patch and the fungus is a close relative
of one that causes brown patch in Bermudagrass. This fungus may cause large areas
of turf to die and is usually visible either in the fall or in the spring. This may
come back every year in the same spot and a lot of times it is associated with an
overdose of nitrogen fertilizer and poor soil drainage. Excessive thatch buildup
can also contribute. The fungus can be controlled by chemical applications and by
correcting drainage, fertilization and thatch issues. (See fact sheet FSA 7527 for
For more information on common landscape fungal diseases, please call Allen Bates, County Extension Agent – Agriculture, at 501-623-6841, or
email him at firstname.lastname@example.org.
If you’re interested in becoming a Master Gardener and would like more information,
you’re welcome to attend their monthly meeting on the 3rd Thursday of each month at 1pm at the Elks Lodge. You may also call the Extension
office on 623-6841 or 922-4703 or email email@example.com.
Are you interested in joining an existing Extension Homemakers Club? EHC is the largest
volunteer organization in the state. For information on EHC call 623-6841 or 922-4703
or email firstname.lastname@example.org.
We have several 4-H clubs for our Garland county youth who are 5 to 19 years old.
For more information on all the fun 4-H activities there are, call the Extension Office
at 623-6841 or 922-4703 or email Linda Bates at email@example.com.
The Arkansas Cooperative Extension Service is an equal opportunity/equal access/affirmative
By Allen Bates County Extension Agent - AgricultureThe Cooperative Extension ServiceU of A System Division of Agriculture
Media Contact: Allen Bates County Extension Agent - Agriculture
U of A Division of Agriculture
Cooperative Extension Service
236 Woodbine Hot Springs AR 71901
The Arkansas Cooperative Extension Service is an equal opportunity/equal
access/affirmative action institution. If you require a reasonable accommodation to
participate or need materials in another format, please contact your County Extension
office (or other appropriate office) as soon as possible. Dial 711 for Arkansas Relay.
The Arkansas Cooperative Extension Service offers its programs to all eligible
persons regardless of race, color, sex, gender identity, sexual orientation, national
origin, religion, age, disability, marital or veteran status, genetic information,
or any other legally protected status, and is an Affirmative Action/Equal Opportunity