Learn how to effectively use Ortho Fire Ant Killer Broadcast Granules to eliminate fire ants and protect your yard with easy step-by-step instructions.
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Home Defense Ant, Roach & Spider Killer by Ortho

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Before you start, make sure the lawn is dry and weather conditions are calm—no rain or strong wind expected in the next 24 hours. Put on waterproof gloves, long sleeves, and closed-toe shoes to protect your skin. Read the label on the bag to follow all safety information and instructions.
Measure your lawn size so you know how many square feet you are treating. The Ortho bag will tell you how much granules you need per square foot. Plan to cover the whole area where you want to control fire ants, not just where you see their mounds.
Open the bag of granules carefully over your lawn to avoid spills. Pour the granules into a lawn spreader—a wheeled device that evenly scatters the product over the ground. Set your spreader to the setting recommended on the Ortho bag, which controls how much product is released as you push or walk.
Walk at a steady pace, pushing the spreader to cover the entire lawn or treatment area evenly. Make sure to overlap slightly with each pass to avoid missing spots. Don’t pile extra granules on mounds or in any one area—this product is made to control ants by spreading over the whole surface.
Once you have finished spreading, lightly water your lawn with a garden hose or sprinkler. The water helps the granules break down and activate so they start killing fire ants. Do not soak the ground—just enough water to dampen the area. Try to water within 48 hours, but right after application is best.
Wash your hands and all equipment (spreader, gloves) with soap and water. Keep people and pets off the treated lawn until it is dry—usually a few hours. Do not mow the lawn immediately after treating; wait a few days for best results. Store leftover granules in a secure, dry place away from kids and animals.
Monitor your lawn over the next weeks. If you still see fire ants after a few weeks, you can reapply following the same steps. Always follow label directions for how often to use the product, and don’t apply more than recommended.
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With over 20 years of experience, Anchor Pest offers personalized, chemical-safe quarterly subscriptions, protecting homes and businesses across Manchester and surrounding counties with ongoing peace of mind.
Fire Ant Killer Broadcast Granules by Ortho is a type of insect control product designed specifically to eliminate fire ants from outdoor areas such as lawns, gardens, and landscapes. It comes in the form of small, sand-like granules, which are meant to be spread evenly over the ground (“broadcast”) to target the entire area where fire ants might live or travel, not just individual mounds. These granules contain an active chemical ingredient that is deadly to fire ants but does not harm most types of grass and plants when used properly.
Fire ants are aggressive, red-brown insects that build large, loose soil mounds and can deliver painful, burning stings. Controlling them is important for safety and comfort, especially in outdoor spaces where people or pets may come into contact with ant colonies.
The main point of using broadcast granules is to provide wide-spread treatment instead of only treating visible mounds. When the granules are spread onto the lawn or garden, fire ants come into contact with the chemical as they walk over treated soil or when they pick up the granules and take them back to their nests. The chemical affects the ants’ nervous systems or their ability to function, killing them either on contact or when the granules are transported and fed to other ants, including the queen. It ensures that not only the visible worker ants are affected but also the hidden members of the colony beneath the surface.
Ortho is a well-known manufacturer of yard and garden products. Their Fire Ant Killer Broadcast Granules typically contains a pesticide such as Bifenthrin or another active ingredient that is registered for use against fire ants. The granules are generally water-resistant for a period, making them effective even if the treated area gets wet from dew or light rain.
Fire Ant Killer Broadcast Granules by Ortho is intended for outdoor use only, and is part of a broader approach to pest management, providing protection for several months with just one application. It is formulated to begin working quickly after application, often starting to reduce fire ant populations in hours or days.
In summary, this product is a specialized lawn treatment in granular form, made to be spread widely across the ground, where it kills fire ants by poisoning their colonies at and beneath the surface. The approach targets entire colonies and helps prevent the formation of new ant mounds, creating a safer and more enjoyable outdoor environment.
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Here's what you get:
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Trained experts identify entry points and nesting areas
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Pet and family-friendly methods used
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Targets entire colony, not just visible insects or rodents
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Long-term exclusion strategies
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Proper cleanup and sanitization
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Service warranty and follow-up visits
Complete property assessment within 24 hours
Safe, effective treatment of entire colony
Long-term exclusion and monitoring
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