Horticulture in Season

Expert and unbiased answers to frequently asked questions about lawns and gardens.

 

Tom Fowler - Horticulturist

University of Missouri Extension

Buchanan County, Missouri

 

Questions categorized by topic and month

LAWNS        INSECTS        ORNAMENTALS        TREES        FRUITS AND VEGETABLES

January        February        March        April        May        June        July

August        September        October        November        December
 


SEPTEMBER:  As the days grow shorter in September.....Drought can still be a problem, especially for shrubs and newly planted trees.  Be sure to water them regularly to sustain the growth. 
 

September's Frequently Asked Questions

The summer heat was hard on my lawn.  It looks like there are a lot of dead spots in it.  What can I do?

 

Answer: The month of September is an excellent time to re-seed the dead areas in your lawn.  If you have more than 50% desirable grass plants just work up the areas that are dead with a garden rake.  Remove any excess plant debris and seed.  Rake in the seed to get good seed/soil contact.  You can use some straw and mulch the spots.  To get the grass going fast, keep the seeded areas moist until the grass seed starts growing good.  Once it is up and growing it does not require as much watering.  If you have less than 50% desirable grass plants should probably do a total renovation of the lawn.  Kill out what is there; work up the soil and seed.  For more detailed information see the MU guide 6700.

Relevant Guide Sheets:  MU guide 6700; MU Guide 6705

 

We have a lot of worms with a lot of legs getting into our garage.  What are they and what can we do to control them?

 

Answer: More than likely are millipedes, they are also called thousand-legged worms.  Millipedes are worm-like and most often brownish-black in color, Their legs ripple as they move and they will curl up if they are touched.  Millipedes like damp locations (such as wooded areas) but will sometimes move in the house.  They are actually beneficial in nature because they help break down plant material.  They do not bite people or damage household furnishings directly, but they will leave a mess and give off an odor if crushed.  They require high moisture to survive and often will die in a day or two after entering the house.  Dead millipedes can be vacuumed up and disposed of.  Sealing and caulking around openings in the foundation and around doors will help keep them out.   Drying out moist areas inside will help with control.  If you still have problems, spraying a three-foot band around the outside of the house using resmethrin, cyfluthrin or proxopur will take care of them before they get inside.  See the MU guide 7362 for more details. More information about insects

Relevant Guide Sheets: MU guide 7362  

 

What is wrong with my pine tree?  The needles inside the tree branches are turning yellow!

 

Answer:  Some years this is more noticeable than others.  It is a natural process where the 2-4 year-old interior needles turn yellow, then brown and drop off.  Like deciduous trees that loose their leaves, pine trees lose their older needles every year. 
More information about pine trees

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University of Missouri Extension

 Horticulture for Northwest Missouri
University of Missouri Extension
Updated 08/17/07

Find a University of Missouri Extension Office

Tim Baker
Horticulture Specialist
102 N Main, Suite 1,
Gallatin, MO 64640
660-663-3232
BakerT@missouri.edu

Tom Fowler
Horticulture Specialist
4125 Mitchell  Ave.,
St. Joseph, MO 64507
816-279-1691
FowlerT@missouri.edu