10 Best Garden Grub Killers 2025 in the United States

The Scotts GrubEx1 Season Long Grub Killer is a solid choice for homeowners looking to protect their lawns from grubs and other pests. It contains granules that are easy to apply, especially when used with Scotts spreaders. One application in the spring or early summer can cover up to 10,000 square feet, providing up to 4 months of protection.

This makes it quite efficient in terms of both labor and coverage area. The product is not only effective against grubs but also targets a variety of other insects like armyworms, sod webworms, chinch bugs, and beetles, which can be advantageous for comprehensive lawn care.

While the product is highly effective in preventing root and turf damage caused by insects, it would be beneficial to check the specific active ingredient and any related safety information to ensure it aligns with your environmental and pet safety preferences.

The BioAdvanced 24 Hour Grub Killer Plus offers a quick and effective solution for garden grub issues, promising to kill grubs within 24 hours. With its additional insect-killing capabilities, this product addresses a wide variety of pests, including ants, ticks, and grasshoppers, making it a versatile option for garden pest control. The granules can cover up to 10,000 square feet, which is suitable for medium to large lawns.

The active ingredient, Trichlorfon, is potent but requires careful handling due to potential environmental impacts, and the product is not allowed for sale in California and Maine, likely due to regulatory restrictions. While it is effective in preventing lawn damage when applied at the first sign of grubs, users should be mindful of its safety for pets and wildlife and follow instructions to minimize any negative effects. The granular application method is straightforward, but users should still take precautions to ensure even distribution.

At 20 pounds, the bag is somewhat heavy, but manageable for most users. It is rated 4.3 out of 5 stars by customers and is well-regarded for its performance. Users should weigh its environmental impact and safety concerns before use.

The ST. Gabriel Organics Milky Spore Granular Natural Bacteria Japanese Beetle Grub Killer is a garden product designed to help control grub infestations in lawns and gardens. It uses Milky Spore, a natural bacteria, as its active ingredient to target and kill Japanese beetle grubs. This makes it an eco-friendly option for those looking to manage pests without resorting to harsh chemicals.

One of its standout features is the long-lasting protection it offers; a single application can provide up to 10 years of effective control, which is a huge plus for busy gardeners who prefer low-maintenance solutions. Additionally, it's safe for pets, children, and beneficial insects, aligning well with the need for products that promote a balanced ecosystem and are gentle on the environment. Application is straightforward, thanks to its granular form that can be easily applied using a lawn spreader.

This product also contributes to the health of your lawn by eliminating grubs that cause damage, leading to thicker and healthier grass growth. However, the product's effectiveness is specifically geared towards Japanese beetle grubs, so if you have other types of grubs or pests, this may not be the best fit. Additionally, some users might find the upfront cost higher compared to other chemical-based grub killers. This product is best suited for those who are looking for a long-term, environmentally friendly solution to maintain a healthy lawn free from Japanese beetle grubs.