Ask a Question forum: Mixing chlorpyrifos & dimethylamine

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Brisbane, Queensland, Australi
Feb 17, 2018 8:59 PM CST
Hi Guys,

A quick question regarding chlorpyrifos & dimethylamine. I have quite a lot of new growth in my Blue Couch lawn and am looking to kill clover as well as protect the new growth by using an insecticide. I have always had good results with Kamba M and Fortune 500 for doing these jobs, but wondered if anyone knows if they can be mixed together before applying? I would normally do 2 runs, 1 of each, but if I can combine, it would save a lot of time.

Name: Carol
Santa Ana, ca
Sunset zone 22, USDA zone 10 A.
Charter ATP Member Hummingbirder Lover of wildlife (Black bear badge) Orchids Region: California Plant Identifier
Feb 17, 2018 9:30 PM CST
Do the companies that produce them have a web site? I would think they could give you the best answers. If not , how about large landscape companies in your area? Some of those chemicals can be mixed and others can't, so the chemists that made them are always the best bet.
Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
Feb 18, 2018 6:53 AM CST
I assume you mean 2,4-D and chlorpyrifos? I'm not sure if it is everywhere but chlorpyrifos was/is being phased out in North America. Carol is right, there should be a toll free phone number on the label that you can contact for tank mixing if it doesn't already say on the label.
Name: Rick R.
Minneapolis, MN, USA zone 4
I was one of the first 300 contributors to the plant database! Garden Sages The WITWIT Badge Garden Photography Region: Minnesota Hybridizer
Seed Starter Plant Identifier Million Pollinator Garden Challenge
Feb 18, 2018 8:41 AM CST
Whatever the chemicals, never mix them together unless you can find an official recommendation. One need to take into consideration the entire product, not just the active ingredient, too. And how would you know if they would even physically mix together (think oil and water)?

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