Pesticide Update – Chemistries Changing
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Collapse ▲Lawn and Garden Chemicals Have Come and Gone
Over the years home gardener’s access to many pesticide chemistries has come and gone. DDT, Dursban (chlopyriphos), lindane, arcenicals and many other chemistries that were once widely available are now unavailable for use by home gardeners.
Today the trend continues with many of the pesticides Baby Boomers and Gen-Xers used in the 90’s and 2000’s going away. Gardeners may find the name brands still being used but the active ingredients are changing. Carbaryl, was once the active ingredient in Sevin. Today when you go to the store Sevin products contain bifenthrin, a member of the pyrethroid class of insecticides which are synthetic versions of an insecticide derived from chrysanthemum flowers. Snail and slug killer products were changed from metaldehyde to sodium ferric EDTA recently.
Glyphosate
I keep getting asked by home gardeners, “What’s up with glyphosate? Is it being pulled for homeowner use? I know it can’t be found on store shelves anymore.”
The short answer is ‘yes’, it does appear that glyphosate will no longer be in homeowner RoundUp brand products on store shelves. Many articles online point to the fact that the manufacturer of RoundUp made this decision in 2022. It is unclear to me at this moment if glyphosate will still be produced by other manufacturers.
If you go to retail outlets you will not find RoundUp containing glyphosate unless the store has some remaining stock it is selling. I went to several local retailers and could not find any RoundUp containing glyphosate. Basically the manufacturer has substituted triclopyr + fluazifop sometimes with imazapic, diquat, or others as the active ingredients.
A quick search online by the author found many glyphosate products still available for purchase. Many different online retailers still have multiple different name brands for sale. It is unclear if these online retailers are simply selling out of their stock or if they will continue to sell glyphosate products to the general public.
It appears that landscapers continue to be able to buy and use glyphosate on homeowner properties. In a discussion with several landscapers it was learned that the product they are finding and still use is RoundUp Pro. This is much more expensive than generic brands.
New Herbicide Chemistries
There are options to glyphosate and other older herbicides. Newer herbicides that are labelled ‘organic’ are on the market. The author has used Axxe and Natria. Both are very effective weed killers. Here is a list of other biorational herbicides.
READ THE LABEL
The old saying ‘READ THE LABEL” is as true today as it was when I first learned it in ag school back in the 90’s. The EPA requires any pesticide label to tell you everything you need to know about the product including the name of the active ingredient, what proper protective equipment a user must wear, where and how to apply and how to mix. The EPA also requires the end user of the pesticide read the label. Finally, the EPA pushes responsibility to the end user of the pesticide.