How many times a year should you use GrubEx?

Answered by Jeremy Urbaniak

According to The Scotts Company, it is recommended to treat each 1,000 square feet of lawn with 2.87 pounds of GrubEx once a year. This granular pesticide is specifically designed to target and control grubs, which are the larvae of various beetles that can cause damage to lawns by feeding on grassroots. By using GrubEx, you can effectively prevent or reduce grub populations in your lawn, leading to a healthier and more vibrant turf.

Now, you might be wondering why it is necessary to apply GrubEx only once a year. Well, the reason is that the active ingredient in GrubEx, called chlorantraniliprole, has a long residual effect. This means that it remains active in the soil for an extended period, providing continuous protection against grubs. Applying GrubEx once a year ensures that your lawn is protected throughout the entire grub season.

Grub season typically varies depending on your location and the specific type of beetle in your area. In most regions, the optimal time to apply GrubEx is in the late spring or early summer, before the grubs hatch and start feeding on grassroots. This timing allows the pesticide to establish a barrier in the soil, preventing the grubs from causing damage.

Using a drop or rotary spreader is highly recommended when applying GrubEx. These spreaders help to evenly distribute the granular pesticide across your lawn, ensuring uniform coverage. It is important to follow the manufacturer’s instructions on the product label for the correct application rate and technique. This will help maximize the effectiveness of GrubEx and minimize any potential risks or negative impacts on the environment.

In terms of frequency, applying GrubEx once a year is typically sufficient for most lawns. However, there may be situations where additional applications are warranted. For example, if you have a history of severe grub infestations or live in an area with high grub populations, you may consider applying GrubEx twice a year. In such cases, it is advisable to consult with a lawn care professional or local extension office for specific recommendations based on your unique circumstances.

It is worth noting that while GrubEx is an effective tool for controlling grubs, it is not a one-size-fits-all solution for all lawn pests. If you are dealing with other pests or issues in your lawn, such as weeds, diseases, or insects other than grubs, it may be necessary to use additional pesticides or treatments. It is important to properly diagnose the problem and select the appropriate products for your specific needs.

Applying GrubEx once a year, at a rate of 2.87 pounds per 1,000 square feet of lawn, is the recommended dosage by The Scotts Company. The use of a drop or rotary spreader helps distribute the granular pesticide evenly. However, it is important to consider factors such as location, grub population, and lawn history to determine if additional applications are necessary. Remember to always follow the manufacturer’s instructions and seek professional advice when needed.