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--- garden:cultivate:tasks:weed:control [2025/07/27 17:15] – 98.97.42.94
+++ garden:cultivate:tasks:weed:control [2026/09/17 18:31] (current) – davidsbach
@@ Line 18: / Line 18: @@
 === Vinegar ===
-Vinegar contains acetic acid, which stresses out plants exposed to it. You can use regular kitchen vinegar, but it is weak and may take several applications.
+Vinegar contains acetic acid, which stresses out plants exposed to it by drying them out. You can use regular kitchen vinegar, but it is weak and may take several applications.
 Stronger solution of acetic acid can speed the process, but be careful, this irritates skin.
@@ Line 31: / Line 31: @@
 <note important>Spray selectively - only on plants you want to kill!</note>
+=== Concentrated vinegar ===
+I recently purchased vinegar in 50% concentration and tested more, primarily on sheep sorrell, because I had found this variety resistant to herbicides.
+I diluted it first to 25%. This worked well for some weeds.
+Then I diluted it to 20% and tried on a different variety of weeds. Mostly, this worked well.
+I have tried to kill sheep sorrell both with Glysophate and concentrated vinegar. I believe the vigor and tenacity of the rhizomes protected the underground parts of the plant from the affects. Within weeks, the leaves returned, were obvious and healthy.
+Show photos of sheep sorrell treated with concentratedvinegar. My first test showed the leaves withering, but they plants returned within weeks.
+In a recent test I used the concentrated vinegar but I sprayed an excessive amount so that the vinegar could penetrate into the ground below the leaves, hopefully affecting the rhizomes. The immediate result was a very dried and sick looking of leaves. I'm waiting to see if this patch returns
+PHOTOS of sheep sorrell ****
+img_6878, img_6884
+=== Weaker concentrations ===
+I tried with different concentrations and found most weeds were affected by weaker concentrations.
 === Citrus oil ===