Husker Hort

A Nebraska View of Horticulture


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Frosty’s Revenge

beech-leaves-700x212

Frost on turf is not just pretty. Photo from: http://acreage.unl.edu

Winter can be a beautiful time of the year.  The gracefully falling snow or frost on the plants in the morning sun can be an attractive sight to some.  To others, it just means more work outside.  Regardless of how you feel, these winter conditions should remind everyone to think about their turf.  That’s right, I said turf.  While the frost and snow are pretty, there are some steps that you can take now to ensure a beautiful looking lawn come spring. Continue reading


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Leaves, Weeds, & Turfgrass Needs

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Leaves covering turfgrass. Photo courtesy http://lancaster.unl.edu.

Fall is good for more than just raking leaves and cooler nights.  Fall is actually one of the better times of the year to improve your turf.  Take advantage of these cooler temperatures and prepare your lawn for the coming spring. Continue reading


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Grubs

grub

Different species of grubs.

Happy Summer!  June 20th marked the start of the summer season.  Summer means a good time for cookouts, picnics, swimming, and grub control.  Not exactly what you had in mind for summer fun?  Knowing the pest and its habits can help keep you from spending all of your summer fun time dealing with grubs.

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The War on Turf Weeds

The saying, “Timing is everything,” could never be more true. Proper timing of herbicide applications can not only save you the frustration of having a lawn full of weeds, but it can also lead to better control of those pesky plants. Properly identifying the weed and knowing its growth habit is helpful in knowing if or when is the best time to apply herbicides for the best results. Continue reading


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Got Yellow Grass Instead of Bluegrass?

Off-colored Kentucky Bluegrass

Off-colored Kentucky Bluegrass

Timely rains this year may have kept many from running their irrigation systems, but they could have also done much more than that. Moisture has kept many lawns from going dormant and heavy rains are most likely the reason for many the weeds in the turf and in some cases, its yellow appearance. Continue reading


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Grubs- Turf’s Summer Problem

Different grubs side-by-side

Different grubs side-by-side

Happy Summer! June 21st marked the start of the summer season. Summer means a good time for cookouts, picnics, swimming, and grub control. Not exactly what you had in mind for summer fun? Knowing the pest and its habits can help keep you from spending all of your summer fun time dealing with grubs. Continue reading


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The War on Weeds

Dandelions

Dandelions

Spring has officially sprung. The crabapples and flowering pears are in full bloom. Tulips and daffodils are starting their flower show. Henbit and dandelions are looking gorgeous. Are the last two not quite the kinds of spring flowers you want in your landscape? If so, there are some things you can do. The key to knowing what to do when depends on the weed, but it all comes down to proper identification of the enemy and its life cycle. Continue reading


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Fall Turf Care

*This post was written BEFORE a majority of the state received snow 😉

Fall is good for more than just raking leaves and cooler nights. Fall is actually one of the better times of the year to improve your turf. Take advantage of these cooler temperatures and prepare your lawn for the coming spring.

The first question to ask yourself this fall is; can you see your turfgrass in the lawn? Heavy layers of leaves can do a few things to your lawn. If they are thick enough, leaves can smother the lawn and also create conditions that can be favorable to snow mold. Raking or mowing the leaves on a regular basis can help to prevent this heavy layer of leaves from forming and matting down on the turf before winter. If the leaves aren’t utilized in the compost pile or worked into the garden soil, they can simply be mowed over. Using the mulching blade on the lawn mower will chop up the leaves into smaller pieces that are able to filter down between the grass blades. This helps keep you from having to haul the leaves away and it also helps to add organic matter back into the soil. By removing or mulching the leaves on the lawn, you can ensure that your high quality winterizer fertilizer will be able to filter down to the soil where it can be used by the turfgrass, rather than sitting up on top of the leaf litter.

Good news. There is still time to control pesky perennial weeds. The ideal season to control perennial weeds like ground ivy, also known as Creeping Charlie, was between September 15th and the first frost, but there is still time. Research out of Purdue shows that herbicides that contain triclopyr, like Turflon, were effective on ground ivy and retained their effectiveness when applied later in the season regardless of the first frost. The study showed that broadleaf applications should be effective when made into the first week or two of November, but control might be not be seen until spring.

It may be time to rethink what you knew about winterizer fertilizer applications. Previously, recommendations were to apply nitrogen during early to mid-September and then make a heavy application of nitrogen fertilization at the end of the growing season (early to mid-November). Research has shown that nitrogen fertilizer uptake is not as efficiently used later into the fall. Fertilizer that isn’t taken up by the plant sits in the soil until the following spring or is leached out of the soil profile during winter. Avoid applying fertilizer too late into the fall. September fertilization is best to maximize recovery from summer stress and prepare for winter. For the last application of the season, apply it no later than the first week of November and aim to apply not more than 0.75 lb. of a fast release nitrogen source.

With a little time and effort now, your lawn can still look green and lush next spring and hopefully with a few less weeds too.

For more information contact Elizabeth Killinger at elizabeth.killinger@unl.edu, 308-385-5088, on Facebook, Twitter, her blog at https://huskerhort.wordpress.com/, or visit the University of Nebraska-Lincoln Extension website: hall.unl.edu.


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Preparing Turf for Winter

Fall is good for more than just raking leaves and cooler nights.  Fall is actually one of the better times of the year to improve your turf.  Take advantage of these cooler temperatures and prepare your lawn for the coming spring.

The last fertilizer application of the year is often referred to as winterizer fertilizer.  This fertilizer application is more than just a tongue twister, it is important to prepare cool season turfgrasses for the following year.  Winterizer fertilizers are normally applied at the time of the last mowing, which is usually late October to early November.  The lawn isn’t growing ‘up’ at this time of the year, which will relocate the fertilizer to other parts of the plants, mainly the root system.  The remainder of the fertilizer will be stored in the crown and rhizomes of the turf and will be utilized next spring.

The type of nitrogen and make-up of the fertilizer can make a difference.  When you look at the fertilizer bag, there will be three numbers present.  These numbers indicate the ratio of the nitrogen, phosphorus, and potassium in the bag.  Nitrogen, the first number, is usually the nutrient that is most needed especially in the winter.  Ideally you would like to have at least half of the product to be a slow release nitrogen source, like sulfur coated urea.  Nitrogen should be applied at a rate of 1 to 1.5 pounds per 1,000 square feet.  The ratios on the bag should be similar to a 1-0-1 or 1-0-5.5, or some examples of typical numbers for winterizer fertilizers could be 21-0-20 or 19-2-13.  These ratios will provide close to an equal amount of potassium, the third number, along with the nitrogen.  Studies have shown that potassium aids the turf in tolerating stress.

Before you apply the fertilizer; can you see your turfgrass in lawn?  Heavy layers of leaves can do a few things to your lawn.  If they are thick enough, leaves can smother the lawn and also create conditions that can be favorable to snow mold.  Raking or mowing the leaves on a regular basis can help to prevent this heavy layer of leaves from forming and matting down on the turf before winter.  If the leaves aren’t utilized in the compost pile or worked into the garden soil, they can simply be mowed over.  Using the mulching blade on the lawn mower will chop up the leaves into smaller pieces that are able to filter down between the grass blades.  This helps keep you from having to haul the leaves away and it also helps to add organic matter back into the soil.  By removing or mulching the leaves on the lawn, you can ensure that your high quality winterizer fertilizer will be able to filter down to the soil where it can be used by the turfgrass, rather than sitting up on top of the leaf litter.

Good news. There is still time to control pesky perennial weeds.  The ideal season to control perennial weeds like ground ivy, also known as Creeping Charlie, was between September 15th and the first frost, but there is still time.  Research out of Purdue shows that herbicides that contain triclopyr, like Turflon, were effective on ground ivy and retained their effectiveness when applied later in the season regardless of the first frost.  The study showed that broadleaf applications should be effective when made into the first week or two of November, but control might be not be seen until spring.

With a little time and effort now, your lawn can still look green and lush next spring and hopefully with a few less weeds too.

For more information contact Elizabeth Killinger at elizabeth.killinger@unl.edu, 308-385-5088, on Facebook, Twitter, her blog at https://huskerhort.wordpress.com/, or visit the University of Nebraska-Lincoln Extension website: hall.unl.edu.