Does Grub Killer Kill Grass? Uncover the Truth!

June 18, 2024
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The objective of grub killers is to destroy grub worms, which are beetle larvae such as European chafers, June beetles, and Japanese beetles. Because they eat the grassroots, these grubs seriously harm turf on lawns.

Grub killers are an essential component of lawn maintenance. They efficiently get rid of dangerous pests that live below the surface. According to the manufacturer’s directions, they prevent grub damage by preserving lush, healthy grass. Use them sparingly and with safety measures to reduce harm to the environment and helpful insects.

Does Grub Killer Kill Grass? Will Grub Killer Hurt New Grass?

Grub killers are designed to eliminate grub worms with minimal damage to grass. However, specific grub killer solutions may affect grass differently based on variables, including the precise active components, concentration, application rate, and time.

Grub killers usually don’t damage established grass if used as the manufacturer directs. They should be able to remove grubs without killing the grass. Applying the product carefully and preventing overuse are crucial to reducing any potential harm to the grass. Most of the time damage is caused from added nitrogen to a granular application, be sure to follow label instructions.

Can you Put Grub Killer Down With Grass Seed? Can you Put Grub Killer on a New Grass Seed?

Generally, using grub killer on freshly put down grass or in conjunction with grass seed is not recommended. Delaying applying it until after the grass seed has sprouted and become established may avoid grub killer problems and new grass growth. Recently seeded or sodded lawns may be more susceptible to certain chemicals. Always carefully read the product instructions and consult with local experts for guidance specific to your region and kind of grass.

Can You Put Down Grub Killer and Grass Seed at the Same Time?



It might be a little challenging to apply grub killer and grass seed simultaneously since unavoidable grub killers can prevent seed germination or interfere with new grass growth. As mentioned above, grub killer should usually not be used until the grass seed has sprouted and become established.

For the following reasons, it is important to stretch out the period of the application distribution process:

  1. Chemical Interference: Certain grub killers contain chemicals that might hinder the development of young grass plants or prevent seeds from germinating. When these pesticides are used concurrently with sowing, it may prevent new grass from taking root.
  2. Timing: Sowing grass seed specific to your grass type during the growing season is recommended. Grub killers, on the other hand, are usually used during grub-active seasons. Coordinating these timetables can take time, which might impact how both operations turn out.
  3. Grass Establishment: For newly seeded grass to develop a strong root system and become a lush lawn, considerable attention and care are needed. The simultaneous application of grub killer may cause the grass more stress and jeopardize its establishment.

Space out the treatments and give the grass time to develop before applying grub control to optimize the efficiency of both procedures and enhance the overall health and vibrancy of your lawn.

Can You Put GrubEx Down with Grass Seeds?

GrubEx is a well-known brand that contains chlorantraniliprole, the primary ingredient in grub killers. It is commonly used to manage grub infestations in mature lawns and can also be used while planting new grass. Adhering to prescribed protocols guarantees peak performance and reduces the risk of harm to the grass seed.

Think about the following if you want to use GrubEx and grass seeds together:

  1. Seed Germination: GrubEx’s primary ingredient, chlorantraniliprole, is non-toxic mainly to plants, although it could affect how seeds germinate or how new grass grows.
  2. Product Label: Carefully read and adhere to the directions on the product label at all times. When using the product with grass seed, the label will provide detailed instructions on application rates, timing, and other necessary safety measures.
  3. Local Recommendations: Speak with your agricultural extension office or a local lawn care professional. They could provide enlightening advice on when and how to manage grubs and create a robust lawn.

When using GrubEx with grass seed, carefully follow the guidelines to eliminate grubs and have a lush, healthy lawn.

Don’s Lawn provides the best service for grub control for lawns in Oklahoma City. We are the best lawn care company in OKC. Take advantage of the opportunity to keep your grass tidy and new. If invading insects are spoiling your outside area, call us right now!


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