Aminopyralids are well known to kill off most everything. Back in 2016, The Prairie Homestead woman, Jill Winger, warned all and from there getting the message out was on a gazillion gardening forums and FB.
www.theprairiehomestead.com/2016/08/curled-tomato-leaves.html She was using the Ruth Stout method of "deep mulch" usually straw to keep the weeds away on her ginormus garden. She killed her entire garden by accident.
I also used, and still use in moderation, that Ruth Stout method both on my in ground beds and now 39 raised beds. But being the nutcase I am, before even our original dirt was brought in, I was asking the chemical questions necessary to be "organic" even though it was just for us. Where we live that is way too costly so we got known 'bad' dirt and waited the 3 years before considering it organic. Always asked the farmer providing the straw what he sprayed with. Always.
Here is Ms. Winger's 2021 report on how HER COWS COMPOST aged and placed on her new beds also contaminated the new soil location with aminopyralids from the feed they ate! YIKES
"4. Tomato Leaf Curl Caused by Herbicide Poisoning
Over the years herbicide poisoning has become a larger problem for home gardeners. Aminopyralid and Clopyralid are the most common types of herbicides doing the poisoning. These are chemical weed killers that target broadleaf weeds, leaving grasses untouched.
Aminopyralid and Clopyralid are usually used in places like grass hay fields, not home gardens. Herbicide drift and herbicide residue are two ways these herbicides can find their way into your garden.
Herbicide Drift:
Herbicide drift is when the wind carries some of the sprayed herbicide to your plants.
Tomato plants fall under the category of extremely sensitive, so even a small amount of drift can affect your plant’s growth and fruit yield. Poisoning from herbicide drift can vary depending on the amount that has landed on your tomato plants.
Herbicide Residue:
Residue refers to the contamination of your soil that directly affects the root system of your plant.
Residue poisoning found in your tomato plants can come from contaminated manure, mulch, compost, or direct application.
Aminopyralid and clopyralid can live through the digestive system of animals; if they have consumed feed sprayed with these herbicides their manure becomes contaminated.
Compost can become contaminated by grasses, hay, and animal manure that have these herbicides on them.Hay or grass mulches that are sprayed with these herbicides will also contaminate your garden, allowing herbicides to leech into your soil.
Herbicide Residue and Herbicide Drift Symptoms Include:
Downward Curling of the Leaves
Stunted & Twisted New Growth
Coloring Can Remain Untouched
Affects Other Broadleaf Plants in Your Garden
...
You can also check out my recent video where I learned for the SECOND time that I had tomato leaf curling due to herbicides in my compost"
1st post by her:
theprepared.com/blog/aminopyralid-contamination-is-a-growing-gardening-problem/#:~:text=An%20herbicide%20called%20aminopyralid%20has,poisoned%20for%20years%20to%20come.
2nd post with contaminated compost info:
www.theprairiehomestead.com/2021/08/top-reasons-for-tomato-leaf-curling.html
