According to the CDC, the chemical is safe based on a decades-long history of use. You can still apply a weed barrier t reduce how often you have to spray … In these cases most people and pets can come back to the area in as little as an hour. They stopped spraying monthly after the first 3 months I was living here. Absolutely positively no. "Read the label to see how long the surface needs to stay wet. Mortein offers pest and insect control products to kill flies, cockroaches, ants, fleas, rats, silverfish and mosquitoes to keep your home bug free. (I have 2 young kids who make terrible messes and live in a prime area for them to live in as well as many areas needing to be sealed up which I have brought to attention but … 0 0. To maximum on the benefits of the 2 4 D. and should you decide to mow immediately after spraying, wait at leads five days before spraying again to give the weed leaves time to regrow. After a … Conversely, if you were were spraying the foundation of the home only on the outside of the house and it was nice and dry outside with little humidity during and after the treatment, the application should dry quickly. According to the National Pesticide Information Center, the active ingredient in Roundup weed killer, glyphosate, is low in toxicity, but additional ingredients that help plants absorb the glyphosate may be … there is no extreme poison in Lysol, it has a little bit of quaternary ammonia in about 99% ethanol alcohol. Mortein Control Bombs: 44 questions on Australia's largest opinion site ProductReview.com.au. Ask a question about Mortein … "If you use a spray, leave it on for few minutes before wiping off. Ideally, you should time the mowing and spraying at least one week apart. I've also found Mortein to be effective for up to a few months (not 6 months) but its important to follow the ant trail back to the where they are getting into the house and spray there. They have some pretty tall row crop sprayers out there, but not sure what your local farmers will do. (3) Since the 1950s, naled has been extensively applied via aerial and ground spraying on an average of approximately 16 million acres of the continental United States annually. I still find Mortein surface spray effective but definitely doesn't stop them for 6 months. And I will tell you why! In other words, I can still see the weeds even after mowing before I spray. I just stick to my mowing schedule, so I would not mow for 2-3 days anyway after spraying the herbicide. When we've sprayed they just told us to stay out of the field for a day, but it's fine to be around the field as long as the spray has settled (like don't be downwind of the sprayer). 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