Don’t Cut Corners with Perennial Forage Maintenance

By Jon Cooner


Whitetail Institute food plot products set the industry standard for performance, and the planting dates and instructions on the back of product bags make it easy for you to get the most out of them. If you’ve planted a Whitetail Institute perennial, you might have noticed a section at the bottom of the instructions that sets out recommended steps for forage maintenance. They’re extremely important, so don’t skip them. The instructions are also available at whitetailinstitute.com.


An Essential Understanding

The maintenance instructions for each Whitetail Institute perennial include recommendations for mowing, keeping soil pH and fertility levels optimum, and controlling weeds (including grass). Even though each of these topics is addressed separately, they are interdependent. They work together toward a common purpose: maximizing the quality and longevity of perennial forage stands. And that means skipping any of them can reduce the effect of the others. Keep that in mind as you read this article, because we’ll touch on it again.

Arrest Max, Slay and Sure-Fire Crop Oil Plus

No matter how good a job you did when you prepared your seedbed and planted, grass and weeds will often show up again at some point. It’s just the way Mother Nature works, and if you don’t take timely action to control weeds and grasses, the quality and the longevity of the stand will be compromised. The good news is that Whitetail Institute offers Arrest Max, Slay and Sure-Fire Crop Oil Plus to help food plotters control grasses and broadleaf weeds in perennial forage stands.

Arrest Max and Slay

Arrest Max and Slay are small-weed herbicides, meaning they deliver optimum results in controlling labeled grasses and weeds that are actively growing but still young. That’s why it’s important to spray in a timely manner — as soon as grasses and other weeds have emerged and are starting to actively grow, but before they mature if possible. Arrest Max is designed to control most kinds of grass, and it can be used in any Whitetail Institute perennial forage stand, in any other clover or alfalfa stand, and in the Whitetail Institute’s PowerPlant annual. Slay is designed to control a few types of grass and most kinds of broadleaf weeds, and it can be used in Imperial Whitetail Clover and any other clover or alfalfa stand. Arrest Max and Slay can also be used in other types of forage stands, but not all, so if you are planning to spray Arrest Max and/or Slay in a forage stand other than the types specified, check the herbicide labels to make sure the forage is listed as an approved crop. You can find the Arrest Max and Slay labels on the package. You can also find them, along with an easy-to-follow set of instructions for mixing the spray solutions, at whitetailinstitute.com.

Sure-Fire Crop Oil Plus

Sure-Fire is a type of adjuvant, meaning something designed to be added to a herbicide spray solution when it's mixed to maximize the effectiveness of the herbicide. Sure-Fire is designed to be tank-mixed with post-emergence herbicides such as Arrest Max and Slay, which enter grasses and weeds through their actively growing leaves. Specifically, Sure-Fire helps wet and spread the herbicide on the weed’s leaves, helps the herbicide stick to them and aids with penetration. The addition of an adjuvant such as Sure-Fire is required by the Slay label for Slay to work. Although it isn’t mandatory to add Sure-Fire to your Arrest Max spray solution, doing so is highly recommended, especially when you’re dealing with tougher perennial or mature grasses.

Maintenance Mowing

Another recommendation you’ll find in every perennial product’s maintenance recommendations concerns mowing. Generally, mow your Whitetail Institute perennial food plots a few times each spring and into summer any time you see anything growing in the plot (forage plants, weeds or grasses) starting to flower or make seeds. When you mow, don’t take more than a couple of inches off the tops of the forage plants, and don’t mow them lower than about 6 to 8 inches tall. Mowing more than a few inches off the forage plants at a time can stress them, and it can also speed up the rate at which moisture evaporates from the soil. And of course, don’t mow the forage plants when they’re stressed, such as during periods of excessively hot or dry weather. There are several reasons to mow Whitetail Institute perennial food plots. The most important is weed control. Most of the weeds in our food plots are annuals that rely on flowering and reseeding to remain in the plots from one year to the next. Thankfully, most annual weeds grow sufficiently upright to let us mow them whenever we see them starting to flower or put on seed heads. Your weed control purpose in mowing is to stop the flowering process before the seeds in weed flowers and seed heads become viable. Mowing also helps keep perennial food plots as lush, attractive and nutritious as possible. One way mowing does that is to prevent the forage plants from expending the tremendous amounts of energy it takes to flower and produce seed. (Whitetail Institute perennials don’t have to reseed to keep producing for years). A second way mowing helps keep perennials such as Imperial Whitetail Clover as lush and vigorously growing as possible is by prompting the forage plants to put on more foliage at lower levels.

Maintaining Optimum Soil pH and Fertility

Finally, make sure that soil pH and fertility levels stay within optimum range. The best way to make sure you know exactly where those levels are, and how much lime and fertilizer to add if they’re low, is to perform a laboratory soil test. The maintenance instructions for each Whitetail Institute perennial make default recommendations, but a soil test will be much more accurate. That assures that you get precisely the lime and fertilizer you need and that you don’t waste money buying lime and fertilizer you don’t need.

Tying it All Together

Remember the essential understanding mentioned at the start of this article? If you kept that in mind as you read, you might have noticed ways in which the maintenance recommendations work together to maximize the quality and longevity of your perennial plantings. For example, soil pH and fertility relate to weed control. Specifically, weeds tend to establish where the plot is thin, and making sure soil pH and fertility stay within optimum ranges helps keep the plot as thick as possible, leaving less room for weeds. Likewise, weed control helps keep the forage stand as lush and thick as possible by keeping weeds from taking up root space. As you can see, it all works together, so it’s wise to make sure you don’t cut corners on perennial maintenance.