10 Best Plant Insect Killers 2026 in the United States

The Ortho Home Defense Insect Killer for Indoor and Perimeter Concentrate is designed to effectively kill and prevent a range of home-invading insects, including ants, cockroaches, and spiders. One of its major strengths is its versatility; you can use it both indoors and outdoors. It’s particularly useful for creating a long-lasting barrier that prevents new infestations for up to 12 months on non-porous surfaces indoors. This makes it highly effective for long-term pest control.

Additionally, its non-staining and odor-free formulation ensures it won’t damage your surfaces or leave unpleasant smells, making it user-friendly for indoor environments such as kitchens and bathrooms. However, the product does require dilution with water and the use of a tank sprayer, which could be considered inconvenient for some users who prefer a ready-to-use solution.

As for safety, while it is designed to be safe for use around humans when applied as directed, it's always important to follow safety guidelines to avoid any potential risks. The active ingredients, Bifenthrin and Zeta-Cypermethrin, are effective but can have environmental impacts if not used correctly, so careful application is advised. This product would be most beneficial for homeowners seeking comprehensive and long-lasting pest control solutions both inside and around their homes.

EcoVenger Ant Killer & Crawling Insect Killer is a plant-based spray designed to quickly kill ants and other crawling insects such as spiders, fleas, and earwigs. It stands out with its dual action: it kills insects on contact within minutes and also repels them for up to four weeks by disrupting their trails, helping prevent future infestations. This product is ready to use right out of the bottle, making it simple to apply directly on insects or around entry points like doors and windows.

Its natural formula uses botanical oils like citronella, geraniol, and cedarwood, which are non-toxic and safe for use around children, pets, and common household plants. Unlike harsh chemical insecticides, EcoVenger is gentle on the environment and won't harm fish, birds, or beneficial animals. It has been tested by university studies showing effectiveness comparable to chemical pesticides and even better results on pesticide-resistant bugs.

While it’s safe and effective indoors and outdoors, it’s primarily for crawling insects and might not work for flying pests. Also, because it’s a spray, it may require reapplication over time, especially after heavy rain outdoors. EcoVenger is a reliable choice for those seeking a fast-acting, natural insect killer that’s safe around family and plants, provides a respectable lasting effect, and maintains a low environmental footprint.

The Bonide Systemic Houseplant Insect Control is a granular insect killer designed for indoor and outdoor plants in containers. It's particularly effective against pests like mealybugs, aphids, and scale, and provides up to 8 weeks of protection as the granules are absorbed by the plant's roots. One of its strengths is its ease of use – simply mix the granules into the soil and water them in. Additionally, it's low odor and won't wash away with watering, making it convenient for regular plant care routines.

However, it is not suitable for edible plants such as herbs, vegetables, or fruit-bearing plants, which limits its use for those who grow food plants. Another point to consider is that its systemic action only affects insects that feed on the plants, so it won't harm beneficial insects that do not ingest the plant. On the safety front, the product is designed to be safe for use around humans and other non-target organisms, but users should follow the instructions carefully.

Environmentally, the systemic nature of the insecticide means it’s less likely to run off into the surrounding area. This product is well-ranked in the Pest Control Products category, suggesting it is a reliable option for those looking to protect their houseplants from insect damage.