Permethrin 13.3 Mixing Instructions: A Comprehensive Guide
This guide provides detailed instructions for safely and effectively mixing permethrin 13.3 concentrate for various applications.
Understanding proper dilution
ratios is crucial for optimal pest control, whether treating clothing, yards, or animals. We’ll cover everything you need to know!

Understanding Permethrin Concentrations
Permethrin, a widely used insecticide, isn’t a one-size-fits-all product; it comes in varying concentrations, impacting how you mix and apply it. Commonly available strengths include 10%, 13.3%, and 36.8%. The 10% concentration is frequently found in feed stores, offering convenience for general use. However, the 13.3% concentration strikes a balance between effectiveness and ease of handling, making it a popular choice for many pest control needs.
The higher 36.8% concentration typically requires online ordering and is often reserved for professional pest management or large-scale applications. Understanding these differences is vital because dilution ratios are directly tied to the permethrin concentration. A higher concentration requires less product to achieve the desired dilution, while a lower concentration necessitates using more. Always verify the concentration on the product label before mixing to ensure accurate and safe application. Incorrect dilutions can lead to ineffective pest control or potential harm.
What is Permethrin 13.3?

Permethrin 13.3 is a synthetic pyrethroid insecticide, a man-made version of a naturally occurring insecticide found in chrysanthemum flowers. This concentrate is a multi-purpose solution, highly effective against a broad spectrum of insects and pests, including ticks, mosquitoes, fleas, and various agricultural pests. Its versatility makes it a popular choice for both residential and agricultural applications.
The “13.3” refers to the percentage of active ingredient – permethrin – within the concentrate. This means that 13.3% of the product is the actual insecticide, while the remaining portion consists of solvents and other ingredients. A single quart of this concentrate can be diluted to create up to 48 gallons of spray for contact and residual control, or even 266 gallons for large animal applications, demonstrating its cost-effectiveness. It works by disrupting the nervous system of insects, leading to paralysis and ultimately, death.

Safety Precautions When Handling Permethrin
Permethrin 13.3 concentrate requires careful handling to ensure safety. Always wear appropriate personal protective equipment (PPE), including chemical-resistant gloves, long sleeves, long pants, and eye protection (goggles or a face shield) during mixing and application. Avoid breathing vapors or spray mist – a respirator may be necessary in enclosed spaces.
Work in a well-ventilated area to minimize inhalation exposure. Do not eat, drink, or smoke while handling the concentrate or diluted solutions. If the product comes into contact with skin, wash immediately with soap and water. In case of eye contact, flush thoroughly with water for 15-20 minutes and seek medical attention.
Permethrin is toxic to aquatic life, so avoid contaminating water sources; Keep children and pets away from treated areas until the spray has dried completely. Store the concentrate in a secure location, out of reach of children and animals, and always follow label instructions.
Required Materials for Mixing
To accurately and safely mix permethrin 13.3, you’ll need a few essential materials. First, obtain the permethrin 13.3 concentrate itself – ensure it’s a reputable brand from a trusted supplier. You’ll require a clean container for mixing, with a capacity appropriate for your desired batch size (1-gallon or 5-gallon buckets are common).

Accurate measuring tools are critical; use graduated cylinders or measuring cups specifically designated for chemical use – avoid using kitchen utensils. A sturdy stirring implement, like a paint stirrer or a dedicated mixing stick, is also necessary. Access to clean water is, of course, essential.
Personal protective equipment (PPE) is non-negotiable – chemical-resistant gloves, eye protection, and potentially a respirator. Finally, have a permanent marker available to clearly label the mixed solution with the concentration and date. Proper preparation ensures a safe and effective outcome.
Calculating Dilution Ratios for Permethrin 13.3

Determining the correct dilution ratio is paramount when working with permethrin 13.3 concentrate. Permethrin is available in varying concentrations – 10, 13.3, and 36.8 – impacting the required dilution. A key principle is understanding that 1 quart of this concentrate can yield between 48 to 266 gallons of spray, depending on the intended use.
For clothing treatment, a lower concentration is typically desired, focusing on effective tick and insect repellency. Yard and perimeter spraying often require a slightly higher concentration for broader pest control. Accurate calculations prevent over or under-application, maximizing effectiveness and minimizing potential risks.
Always refer to the product label for specific dilution recommendations. Remember, precise measurements are crucial; a slight miscalculation can significantly alter the solution’s potency. Careful planning and accurate ratios are the foundation of successful permethrin application.
Mixing for Tick and Insect Repellent (Clothing Treatment)
Creating a permethrin solution for clothing treatment requires careful attention to detail. A common method involves mixing 13 ounces of permethrin 13.3 concentrate with 2 gallons of water, effectively subtracting 13 ounces of water from the total volume. This yields a solution ideal for saturating fabrics to repel ticks and insects.
Ensure thorough mixing to achieve a consistent concentration throughout the solution. The goal is to treat clothing for extended protection, but avoid over-saturation, which can lead to skin irritation. Proper application focuses on areas prone to tick attachment, like ankles, wrists, and around the neck.
Remember, treated clothing retains its effectiveness through multiple washes. Always follow label instructions regarding re-treatment frequency and safety precautions. This method provides a proactive defense against insect-borne diseases.
Mixing for Yard and Perimeter Spraying
For larger-scale applications like yard and perimeter spraying, permethrin 13.3 concentrate offers significant dilution potential. Remarkably, one quart of this concentrate can be mixed with up to 48 gallons of water for contact and residual sprays, providing broad coverage against various pests.
When tackling extensive areas, precise measurement is key. Carefully calculate the required amount of concentrate based on the desired coverage and pest pressure. Thorough mixing ensures even distribution of the insecticide, maximizing its effectiveness.
Consider the specific needs of your yard when determining the dilution rate. Perimeter spraying focuses on creating a barrier against invading insects, while general yard sprays address existing infestations. Always adhere to label guidelines regarding application rates and safety precautions to protect beneficial insects and the environment.
Step-by-Step Mixing Instructions: 1 Gallon Solution
Creating a 1-gallon solution of permethrin 13.3 requires careful measurement for optimal effectiveness. Begin with 1 gallon of water. Then, subtract 13 ounces of water from the gallon. This leaves space for the permethrin concentrate. Next, add 13 ounces of permethrin 13.3 concentrate to the remaining water.

Ensure thorough mixing is achieved. Use a clean mixing container and stir vigorously for at least one minute. This guarantees the concentrate is fully dispersed throughout the water, creating a homogenous solution. A properly mixed solution will appear uniform in color and consistency.
Always wear appropriate personal protective equipment (PPE) during mixing, including gloves and eye protection. Double-check your measurements to avoid over or under-dilution; A correctly mixed 1-gallon solution provides a potent and reliable insecticide for various applications, as outlined in the product label.
Step-by-Step Mixing Instructions: 5 Gallon Solution
To prepare a 5-gallon solution of permethrin 13.3, begin by filling a clean, appropriately sized container with 5 gallons of water. Calculate the amount of permethrin concentrate needed – you’ll require 65 ounces (5 gallons x 13 ounces per gallon). Carefully measure and pour 65 ounces of permethrin 13.3 concentrate into the water.
Thorough mixing is paramount. Utilize a sturdy stirring paddle or a mechanical mixer to ensure complete dispersion of the concentrate. Stir continuously for a minimum of 3-5 minutes, verifying a uniform consistency and color throughout the solution. Incomplete mixing can lead to uneven application and reduced efficacy.
Remember to always prioritize safety. Wear appropriate personal protective equipment (PPE), including gloves, eye protection, and potentially a respirator, during the mixing process. Properly mixed, this 5-gallon solution offers a larger volume for extensive yard or animal treatment, following label instructions.
Using a 13;3% Permethrin Concentrate for Large Animal Spraying
Permethrin 13.3% concentrate can be diluted for effective large animal spraying, offering protection against flies, ticks, and other pests. A single quart of concentrate can yield up to 266 gallons of spray, making it a cost-effective solution for livestock owners. However, precise dilution is critical to avoid harming the animal.
Typically, a dilution ratio of 1:256 is recommended – meaning 1 ounce of permethrin concentrate per 256 ounces (or 2 gallons) of water. Always consult the product label for specific instructions, as concentrations may vary. Thoroughly mix the concentrate and water, ensuring a homogenous solution before application.
Apply the spray evenly to the animal’s coat, avoiding the eyes, nose, and mouth. Never apply to open wounds or irritated skin. Reapplication frequency depends on pest pressure and environmental conditions, but generally, every 7-14 days is sufficient. Prioritize animal welfare and follow label guidelines meticulously.
Application Methods for Permethrin Solutions
The method of application for your diluted permethrin solution depends heavily on its intended use. For clothing treatment, a spray bottle provides controlled coverage, ensuring thorough saturation – particularly around ankles, wrists, and neck. Allow treated garments to dry completely before wearing, and avoid applying directly to skin.
Yard and perimeter spraying often utilizes pump sprayers or garden sprayers, enabling broader coverage. Focus on areas where pests harbor, such as tall grass, shrubs, and around building foundations. Ensure even distribution, but avoid oversaturation, which can lead to runoff.
When applying to large animals, a livestock spray applicator is ideal for consistent and efficient coverage. Always follow label instructions regarding spray distance and application rate. Regardless of the method, wear appropriate protective gear – gloves, mask, and eye protection – to minimize exposure.
Permethrin Application on Clothing
Permethrin-treated clothing offers excellent protection against ticks, mosquitoes, and other biting insects. Ensure garments are clean and dry before application. Spray clothing thoroughly, focusing on areas prone to insect contact – cuffs, ankles, waistbands, and around closures.
For optimal protection, treat the outside of clothing only. Avoid saturating the fabric; a light, even coating is sufficient. Allow treated clothing to dry completely – typically 2-4 hours – in a well-ventilated area before wearing. Do not apply permethrin directly to skin.
Treated clothing retains its effectiveness through multiple washes, typically up to six. Re-treat as needed, especially after prolonged exposure to sunlight or heavy wear. Always follow the product label’s specific instructions for clothing treatment and washing guidelines. Proper application maximizes protection and minimizes potential risks.
Permethrin Application in the Yard
When applying permethrin to your yard, focus on areas where insects harbor – tall grass, shrubs, around the foundation of your home, and along fences. A thorough application creates a residual barrier, offering long-lasting pest control. Use a pump sprayer for even coverage, ensuring you reach underneath leaves and into dense vegetation.
Avoid spraying directly into waterways or allowing runoff to contaminate them. Apply on a calm day to prevent drift onto non-target areas. Consider the impact on beneficial insects like bees; avoid spraying flowering plants during bloom. One quart of concentrate can make up to 48 gallons for yard sprays.

Re-application may be necessary after heavy rainfall or significant new growth. Always adhere to label instructions regarding frequency and application rates. Regular yard maintenance, combined with permethrin treatment, will significantly reduce insect populations and enhance outdoor enjoyment.
Storage and Disposal of Permethrin Solutions
Proper storage of permethrin solutions is vital for maintaining effectiveness and ensuring safety. Keep concentrated permethrin and diluted solutions in their original, tightly sealed containers, away from direct sunlight, heat, and sources of ignition. Store in a locked cabinet or secure location inaccessible to children and pets. A cool, dry place is ideal.
When disposing of unused permethrin or empty containers, always follow label instructions and local regulations. Do not pour solutions down the drain or into waterways. Triple-rinse empty containers with water, adding the rinse water to the spray mixture or disposing of it properly. Puncture or crush the rinsed containers before discarding to prevent reuse.
Never combine permethrin with other pesticides or chemicals. Responsible storage and disposal practices protect the environment and prevent accidental exposure. Check your local waste management guidelines for specific disposal instructions in your area.
Potential Side Effects and First Aid
Permethrin can cause mild side effects, including skin irritation, itching, burning sensations, or temporary numbness at the application site; Inhalation of spray mist may cause coughing or respiratory irritation. These effects are usually temporary and resolve on their own.
If swallowed: Immediately call a poison control center or doctor. Do not induce vomiting unless directed by medical personnel. If in eyes: Flush thoroughly with water for 15-20 minutes, holding eyelids open. Seek medical attention if irritation persists. If on skin: Wash treated areas with soap and water. Remove contaminated clothing and launder before reuse.
Severe allergic reactions are rare but possible. Symptoms may include difficulty breathing, swelling of the face or throat, or hives. Seek immediate medical attention if these occur. Always wear appropriate protective gear during mixing and application to minimize exposure. Keep permethrin away from food and drink;
Where to Purchase Permethrin 13.3 Concentrate
Permethrin 13.3 concentrate is widely available from various retailers, both online and in physical stores. PestWeb by Veseris is a dedicated online source for professional pest management products, offering Permethrin 13.3 alongside resources for PMPs. Many agricultural supply stores and feed stores commonly stock the 10% concentration, but the 13.3% version may require a specific search.
Online marketplaces like Amazon and eBay also carry Permethrin 13.3, but it’s crucial to verify the seller’s reputation and product authenticity. Larger retailers like Home Depot and Lowe’s may occasionally stock it, depending on location and season. The 36.8% concentration is typically ordered online due to restrictions.
Always compare prices and shipping costs before purchasing. Ensure the product is labeled for the intended use (e.g;, agricultural, residential) and complies with local regulations.
Troubleshooting Common Mixing Issues
One frequent issue is inaccurate measurement; always use precise measuring tools for both water and permethrin concentrate. If the solution appears cloudy or separates, it indicates insufficient mixing – vigorous agitation for several minutes is essential. Ensure complete dissolution before application. Another problem arises if the water source is heavily mineralized, potentially reducing the concentrate’s efficacy; using distilled or purified water can mitigate this.

If you’re experiencing clogging in your sprayer, the concentrate may not be fully diluted, or there could be sediment. Filter the solution through a fine mesh screen. Remember, the effectiveness diminishes with incorrect concentration; always double-check your calculations.

Finally, if you notice an unusual odor or discoloration, discontinue use and consult the product label or manufacturer’s safety data sheet.

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