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You are here: Home / how long does it last / cypermethrin storage life

cypermethrin storage life

August 8, 2010 By Tech Support 2 Comments

Hi,  Does the Cypermethrin shelf life vary from powder to liquid?   I would like to spray the under soffits along my house as I am inundated with Mud Dauber nests.     How long will the product keep if kept on the shelf….can it be kept in a hot garage or should I store it inside (live in South Florida).   I am thinking I should order the 8oz wettable powder which should provide about 6-8 treatments so I’m wondering if it will keep a couple years…Thanks.

Most all of our concentrates will remain stable at least 5 years when stored at room temperature, out of direct sunlight and in a dry environment. Once you get past 5 years, liquid and aerosol products will begin to degrade but wettable powders can and usually remain stable. When deciding on how much to get, we generally recommend getting amounts you’ll use in 3 seasons or less. This insures you’ll safely use them before they go bad and in most cases means you won’t have massive quantities stock piling. Our products are packed in small containers and in most cases our 8 oz, pint and quart sizes are more than adequate for the average homeowner to get. These sizes are both small and easy to handle.

As for storing anything in a “hot” garage; I advise against doing this. I keep my products in the cool confines of my basement. It maintains a steady 75 degrees throughout the year which is ideal. Garages tend to get hot and cold and this variance will degrade most of what we sell much faster than a stable environment so avoid such locations if possible.

The CYPERMETHRIN you’re inquiring about listed in our MUD DAUBER ARTICLE is a good example of the product lines we carry. This product is concentrated and in general, people should only mix up what they intend on using at that time when using such a product. In other words, if you mix up a gallon of finished spray, use it all and don’t store any in the sprayer more than a day as it will go bad quickly. Remember, our concentrates are not formulated to last long in a “mixed” state. This is part of their design and very much intentional; ready to use sprays off the shelf found in most home centers will contain all kinds of stabilizers and solvents. These additives will add odor, contaminants and in the long run make the product much less effective compared to the pure concentrate form we carry. Of course, this means you must do a little mixing with our products prior to applying them, but in general this will be easy to do and well worth the time and effort.

Here are direct links to the information and products listed above:

Cypermethrin:  http://www.bugspray.com/catalog/products/page652.html

Mud Dauber Control Article:  http://www.bugspray.com/articles99/muddauber.html

Filed Under: how long does it last Tagged With: aerosol products, dry environment, massive quantities, mud dauber, quart sizes, soffits

Comments

  1. An says

    June 16, 2015 at 3:41 am

    Hello,

    I have an infestation of mud daubers which apparently has been going on for many years. There are hundreds of nests located in between the brick and sheetrock of my garage and in the attic. It would be very difficult for me to remove the nests. How long will an application of cypermethrin on the nests prevent mud daubers from returning to those existing nests?

    Reply
    • Tech Support says

      June 16, 2015 at 6:53 am

      An,

      Cypermethrin sprayed directly on mud dauber nests will generally cause them to stay away due to the repellency action of the active. That being said, some will be reluctant to leave and may linger for a few days. Others may choose to walk over the treatment and in turn, succumb to the active and die within 2-3 days.

      In summary, a good dose of cypermethrin should resolve any activity within 3-4 days and at worse, 1 week. But if they’re still active within a week, treat again.

      On a side note, if there are nests in cracks, crevices or hidden voids, you’ll get much better results if you first dust with Drione with good hand duster. This material is fast acting and will get every space or void where nests may be hiding and hard to treat with the liquid cypermethrin. You can even puff it directly into the dauber’s entry holes for an instant kill of any inside.

      Doing this treatment in the evening, say after 8:00 PM, would be a far better way to proceed for faster and longer lasting results.

      Drione: http://www.bugspraycart.com/insecticide/dust/drione-dust

      Centro 14 oz: http://www.bugspraycart.com/equipment/dusters/centrobulb-14-oz-w12-ext

      So if it was my home needing the treatment, I’d first dust with Drione and let it sit for 1 day. Next, I’d spray over everything with the Cypermethrin. This would insure all the nests are killed quickly and with the Cypermethrin in place, no new nests would form.

      Give us a call if you need more help. Our toll free is 1-800-877-7290 and we’re open 9:00 AM to 6:00 PM Mon-Thur; 8:30 AM to 5:00 PM Friday and 9:00 AM to 1:00 PM Saturday, Eastern Standard Time.

      Jonathan
      Customer Care
      http://bugspray.com
      1-800-877-7290

      PS: Please show your support for our business by purchasing the items we recommend from the links provided. Remember, this is the only way we can stay around and be here to answer your questions and keep our web site up and running. Thanks for your business!

      Reply

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