Herbicidal compositions

Inventors: Yoel Sasson (Tel Aviv, IL); Uri Stoin (Jerusalem, IL)

Assignee: Yissum Research Development Company of the Hebrew University of Jerusalem LTD.

A01N59/00 A01N59/06 A01P13/00

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Quick Facts

Patent No.: US 12667104
App. No.: 17/609,729
Granted: Jun 30, 2026
Kind: B2

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Abstract

The invention is method of combatting weeds, which comprises applying to a soil region an herbicidal combination comprising: at least one alkali metal compound selected from alkali hydroxide, alkali carbonate and alkali bicarbonate; and at least one calcium compound selected from calcium hydroxide and calcium bicarbonate; such that the predominant component of the combination is(are) the alkali metal compound(s). Herbicidal formulations are also provided by the invention.

Claims (15)

1 . A method of combatting weeds, comprising:

applying to a soil region an herbicidal combination comprising sodium hydroxide, potassium hydroxide and calcium bicarbonate,

wherein the total amount of the sodium hydroxide and the potassium hydroxide by weight of the herbicidal combination is greater than the amount of the calcium bicarbonate.

2 . The method according to claim 1 , wherein a weight ratio [NaOH+KOH]:Ca(HCO 3 ) 2 is in a range from 10:1 to 1.5:1.

3 . The method according to claim 1 , wherein a weight ratio [NaOH+KOH]:Ca(HCO 3 ) 2 is in a range from 5:1 to 1.5:1, with a weight ratio NaOH:KOH in a range from 5:1 to 1:5.

4 . The method according to claim 3 , wherein the weight ratio [NaOH+KOH]:Ca(HCO 3 ) 2 is from 5:1 to 3:1, with the weight ratio NaOH:KOH in a range from 3:1 to 1:1.

5 . The method according to claim 3 , wherein the weight ratio [NaOH+KOH]:Ca(HCO 3 ) 2 is from 3:1 to 1.5:1, with the weight ratio NaOH:KOH in a range from 3:1 to 1:1.

6 . The method according to claim 1 , for controlling glyphosate-resistant species.

7 . The method according to claim 1 , devoid of simultaneous application of an organic herbicide.

8 . The method according to claim 1 , wherein the herbicidal combination is applied to keep an area around railways free from vegetation.

9 . The method according to claim 1 , wherein the herbicidal combination is applied to control weeds in an agricultural area to be seeded or planted.

10 . The method according to claim 1 , wherein the herbicidal combination is applied as a mixed composition of individual components in a sprayable solution or suspension, and wherein a total amount of sodium hydroxide, potassium hydroxide and calcium bicarbonate is from 10 grams to 250 grams per liter water.

11 . The method according to claim 1 , wherein the herbicidal combination is applied as a mixed composition of individual components in a solid form.

12 . The method according to claim 1 , wherein a weight ratio of [NaOH+KOH]:Ca(HCO 3 ) 2 is in a range from 100:1 to 1.5:1.

13 . The method according to claim 1 , wherein a weight ratio [NaOH+KOH]:Ca(HCO 3 ) 2 is in a range from 30:1 to 1.5:1.