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Soil Testing
and Plant Diagnostic Services
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Other alliances
Plant Diagnostic Clinic
573-882-3019
The Plant Diagnostic Clinic identifies and provides management solutions for:
Samples can be sent directly to the clinic or submitted through your local extension office.
And now it can be done online.
Clinic update, PDF
Heavy rains in July across many areas of Missouri have resulted in a lot of sample submissions with bacterial and fungal diseases.
White pines damaged by late spring freeze
Several samples of white pine have been submitted to the clinic this spring and summer with needles on the new branch tips having died back while the stem itself remains green.
Asian soybean rust
Collect and submit samples
Recent answers by the clinic coordinator
Last spring and summer, light webs covered all of my tomato plants.
They all died. This condition also affected the blackberries and that part
of the vines died off. My bell peppers were not affected. Any idea what the
problem is and how I can avoid it this spring?
Read
the answer by Simeon Wright.
There are ants, at least I think they are ants, in my
house. I got stung by one in my bed. I have seen them outside a lot, in dirt
mostly, but the baby ones are coming inside. The adults are about an inch
long, they are black with red stripes on the rear, and the adult stingers
are about a quarter inch long. They have a shell that almost makes them
impossible to kill. What are they, how are they getting in my house and
how do I get rid of them? I have a couple of dead ones if
you need one.
Read
the answer by Simeon Wright.
I have an unusual tree I suspect is a cross between a red oak and a white oak. This would be an atypical cross from what I understand. The tree was labeled Quercus palustris, but exhibits traits more like Quercus
macrocarpa. How can I get a positive identification?
Read
the answer by Simeon Wright.
I am having problems with a weed my mother calls rattlesnake weed,
but it is not the same as photos I find online. I'd like to know how to get
rid of it and where it came from. Is there a reource with pictures to identify
Missouri weeds?
Read
the answer by Simeon Wright.
There are some really scary bugs around my house. They look like spiders,
but jump like crickets. They are brown and have six or eight legs, two eyes
and bodies are about the size of a nickel or dime. They live in dead grass
by the edge of my house. Sometimes, I find them inside and in clothes. What
are they?
Read
the answer by Simeon Wright.
I
have about 300 square feet of raspberries in my garden. I've had excellent yields,
20 to 30 pounds, for about 10 years. This year I had very small berries and
wilted plants, maybe one pound of berries. Should I tear out the plants and
all the roots and plant new ones? Is it worth it to send digital photos?
Read
the answer by Simeon Wright.
I planted millet hay this year and have had several people caution me about
the possibility of a high level of nitrates that could poison cattle. How much
is too much? What precautions can I take to make sure this doesn't happen.
How should I collect a hay sample? Where should I send it to have it tested?
How much does the test cost?
Read
the answer by Simeon Wright.
More questions answered by MU Extension
Updated 8/6/08
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