Sirhornsalot
**The Official Horn Sports Landscaper and Landscap
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- Nov 6, 2013
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Don't abandon Fall and Winter irrigation!
Cold, windy weather without much precipitation spells hard times for the landscape
Welcome to November! This month, we’re going to address a hodgepodge of items that are pertinent to the month of November. Yes, Fall is in the air. But there is a multitude of things we should take care of this month.
Last week, I had a conversation with a nice couple about their watering habits as I was concerned about some new plantings in the landscape.
He said “well I just shut the system off once November arrives.”
This would be a mistake. And there are several reasons for having a minimal sprinkler usage during the Fall and Winter.

My Dad was a grower, like me. But he grew crops while I am into landscapes. When I was a kid, he once said to me “I hope we don’t have a hard winter.” At first, I thought I knew what he was talking about. A winter with a bunch of snow and ice and cold temperatures, right? But with a little doubt, I turned to him and asked “what do you mean when you talk about a hard winter?”
“A hard winter is a winter where we get the cold and the wind, but not the precipitation. So things dry out and plants and trees die. Dry soil freezes much easier than wet soil,” he said to me.
Keep in mind, November is the one-year anniversary of the current drought we’re in. Add to that, we’re only two months away from the driest month (January) of the year in Texas. So we could indeed be in for a hard winter. The precipitation in November and December will tell the tale.
So with those things in mind, keep your sprinkler system running once a week during the Fall and Winter, and run for a minimal time such as five minutes (sprays) and 10 minutes (rotors). You can skip this during any week where we receive good rainfall.
This will keep things moist in the turf and landscape but it also helps protect your home’s foundation. If things go dry, your foundation can shift.
If you see a winter storm in the forecast, run your sprinklers the day before it hits. Doing this will help protect the roots of your shrubs and trees. Doing this the day before helps prevent any type of ice that would form on surfaces around the property if you had run your system on the day the cold weather hits. Once it has run, turn the system off until the winter weather is over.
November issues to watch for
We’ve seen it all it seems this year so far. We had a drought, which led to a Chinch bug epidemic, watering restrictions, much lower lake levels, 58 days of 100-degree heat and this happened to plants and trees and shrubs that were still recovering from Snowmageaddon 2021.
So what else are we going to have to deal with?
In November, the Sod Web Worms are still active. You can know they are present by walking through your turf you will see little white moths fly up as you walk. They lay the larvae that becomes the Sod Wed Worm. He feeds on your lawn at night. When we get a hard frost, they will no longer be a problem. But don’t wait on that, treat it now to reduce the damage you’ll have to repair. Watch for the white moths I spoke of, and you will notice small holes in the turf as you walk, looking like someone stuck their index finger into the turf over and over. Those are the locations of the thatch web the worm makes. He’s at the bottom of that web.
It is best to treat these with a granular product with Bifenythryn. Apply, water in. Repeat in one week. Since the worms are protected beneath the turf during the day, you cannot kill them very well using a liquid spray. The granular dissolves in the turf and reaches beneath where the worms hide.
What else?
Last month’s column was focused on lawn fungus. Lawn fungus will continue to be a concern until your lawn goes dormant (brown) from freezing temperatures. What you’re looking for is yellowing blades and turf, sometimes in a circular shape in the lawn. This can be treated fairly easy with a fungicide, liquid or granular. The more widespread your fungus is, the more product you should use. If you have a lawn fungus, check your watering and make sure your cycles start in the mornings, so it has the day to dry out some before nightfall.
Pre-Emergent
November is when we put our last pre-emergent application down for the season. We want to have this done in the first or second week of the month. Water in for two days to get the product into the soil where it can work.

Above, note the large gap between the turf and the stone. Fill these gaps now so your turf can reclaim this space in spring.

Now that the mowing season is coming to an end, this is a great time to repair some of the residual effects of a summer of lawn care. For instance, the gaps between the concrete and the grass where edgers and weed eaters have passed through time and again over the season. Simply fill those gaps now with good soil. When your turf begins to grow again in Spring, it will close the gap . . . until this time next year
Lawn services
Lawn services continue to operate despite the change in weather. Like the weather, the scope of the work is changing. In November, we don’t mow a lot yet other things are becoming factors in the landscape, such as the dropping leaves. There’s shrub trimming and tree trimming that are ideal to do this month. Mulching is also a common task. Do not allow leaves to accumulate next to your home, in beds, etc. Leaves trap moisture and can cause issues with the home. Dry leaves are a fire hazard. Lawn crews remove the leaves, clearing out the concrete areas, beds, foundation lines, etc.
Sprinkler Inspection
Now that the summer season of heat is behind us, it is a great time to check your sprinkler system for proper operation and functionality. After the growing season, shrubs, plants and trees have grown and might have affected the spray heads and their coverage. Some of the heads/nozzles may need to be replaced and even valves can have slow leaks that can become nightmare in freezing weather. Best to address it now instead of when it’s cold.
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