Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
  • A01N43/58—1,2-Diazines; Hydrogenated 1,2-diazines

Definitions

• Defoliation can be accomplished by leaf injury with certain herbicides.
• the herbicide can be either of the contact or systemic variety.
• a contact herbicide requires that a substantial portion of the plant be contacted with the active ingredient of the herbicide being applied.
• a systemic herbicide translocates through the plant.
• Certain herbicides include fatty acids as a component of the active ingredient.
• Fatty acid herbicides are known in the art and are generally considered to be environmentally friendly.
• Fatty acid herbicides are typically supplied as concentrates that are diluted with water and applied as an oil-in-water emulsion. These concentrates usually contain the fatty acid active ingredient an emulsifying agent including surfactants, or oils.
• Application rates vary but usually the fatty acid emulsions are applied at application rates of at least 50-100 gallons or more per acre and deliver the active fatty acid herbicide at concentrations of 1-8% by weight.
• Fatty acid herbicides include fatty acid esters of C6 -C20 monocarboxylic acids such as those disclosed in U.S. Pat. No. 5,284,819. Additionally, fatty acid salts such as those disclosed in U.S. Pat. Nos. 2,626,862; 4,975,110; and 5,035,741, can be employed as fatty acid herbicides.
• the carboxylic acid component of the herbicidal composition includes one or a mixture of alpha monocarboxylic acids having a hydrocarbon chain between one and eighteen carbon atoms.
• the hydrocarbon chain is between about two and eleven carbon atoms, most preferably nine or eleven carbon atoms, e.g., nonanoic acid or undecylenic.
• the hydrocarbon chain can be branched or unbranched, substituted or unsubstituted and/or include one or more sites of unsaturation, e.g., alk ene or alkyne moieties.
• the hydrocarbon chain has nine carbon atoms, and is unbranched, unsubstituted and fully saturated.
• the present invention is based, at least in part, on a discovery that the present invention provides an environmentally compatible herbicidal composition which includes a carboxylic acid component having between one (1) and eighteen (18) carbon atoms and a derivative of maleic hydrazide.
• the carboxylic acid component of the herbicidal composition includes one or a mixture of alpha monocarboxylic components having a hydrocarbon chain between one and eighteen carbon atoms.
• the hydrocarbon chain is between about 2 and about 11 carbon atoms, most preferably nine carbon atoms, e.g. , nonanoic acid.
• the hydrocarbon chain can be branched or unbranched, substituted or unsubstituted and/or include one or more sites of unsaturation, e.g., alkyene or alkyne moieties.
• the hydrocarbon chain is between about 2 and about 11 carbon atoms, preferably nine carbon atoms, and is unbranched, unsubstituted and fully saturated.
• the hydrocarbon chain is between about 2 and about 11 carbon atoms, preferably eleven carbon atoms (Cl l: l), unbranched, unsubstituted and has one degree of unsaturation. Suitable examples include nonanoic, undecylenic, and decanoic acid. Effective concentrations of the carboxylic acid component in the herbicidal composition is between about 1 and about 10% , preferably between about 2 and about 5%, and most preferred about 3.5% .
• the carboxylic acid component in the herbicidal composition is effective as an amide, in the free acid form, or, preferably as a salt.
• the term "carboxylic acid component” is understood to include amides, free acids, and, preferably, salts of carboxylic acids as herein described.
• Amides of carboxylic acids defined herein include primary, secondary and tertiary amides. Suitable secondary and tertiary amides can have lower alkyl groups of between one and four carbon atoms.
• Salts of carboxylic acid include, but are not limited to sodium, potassium, lithium, magnesium, calcium, copper, iron, zinc, manganese, amines, and ammonium.
• the carboxylic acid derivative can be a mixture of free acid or acids, amides, or salts as described herein.
• the mixture can be of one or more carboxylic acid derivatives, that is, the fatty acid portion can be a mixture of fatty acids as free acids, amides or salts.
• the carboxylic acid is fully saponified, in other aspects the carboxylic acid is partially saponified. Saponification of the carboxylic acid can be as low as 25 % , more preferably about 50% , most preferably greater than 75 % and in a most preferred embodiment, greater than 90%.
• the composition of the invention preferably has a pH greater than or equal to 6. Most preferably, the pH is in the range of about 6 to about 9, e.g., 6.5, 7.0, 7.5, 8.0 and 8.5.
• hydrocarbon chain is recognized by those skilled in the art and includes moieties which are carbon atom based, such as alkyl groups, alkylene groups and alkyne groups, terms which are also recognized in the art.
• alkyl refers saturated aliphatic groups, including straight-chain alkyl groups and branched-chain alkyl groups and substituted alkyl groups which are straight chain or branched.
• a straight chain or branched chain alkyl has 30 or fewer carbon atoms in its backbone (e.g., C1 -C30 for straight chain, C3-C30 for branched chain), and more preferably 20 or fewer.
• Suitable alcohols useful in the herbicidal compositions include those alcohols having between 1 and about 14 carbon atoms.
• the alcohols can be straight chained or branched and can contain aromatic moieties such as phenyl rings.
• Exemplary alcohols include, but are not limited to, methanol, ethanol, propanol, isopropyl alcohol, butyl alcohol, sec-butyl alcohol, tertiary butyl alcohol, hexanol, octanol, decanol, dodecanol, benzyl alcohol and tetrahydrolfurfuralcohol.
• Preferred alcohols include ethanol, isopropyl alcohol and propanol, with isopropyl alcohol being the most preferred.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Agronomy & Crop Science (AREA)
• Pest Control & Pesticides (AREA)
• Plant Pathology (AREA)
• Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
• Dentistry (AREA)
• General Health & Medical Sciences (AREA)
• Wood Science & Technology (AREA)
• Zoology (AREA)
• Environmental Sciences (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Chemical And Physical Treatments For Wood And The Like (AREA)

Priority Applications (9)

Applications Claiming Priority (2)

Publications (1)

Family

ID=23908213

Family Applications (1)

Country Status (13)

Cited By (7)

Families Citing this family (6)

Citations (13)

Family Cites Families (16)

• 2000
  • 2000-01-10 US US09/480,503 patent/US6383985B1/en not_active Expired - Lifetime
• 2001
  • 2001-01-04 DK DK01942277T patent/DK1246533T3/da active
  • 2001-01-04 WO PCT/EP2001/000031 patent/WO2001050862A1/en not_active Ceased
  • 2001-01-04 PT PT01942277T patent/PT1246533E/pt unknown
  • 2001-01-04 AU AU28450/01A patent/AU770959B2/en not_active Ceased
  • 2001-01-04 CA CA2395210A patent/CA2395210C/en not_active Expired - Fee Related
  • 2001-01-04 DE DE60101086T patent/DE60101086D1/de not_active Expired - Lifetime
  • 2001-01-04 EP EP01942277A patent/EP1246533B1/en not_active Expired - Lifetime
  • 2001-01-04 JP JP2001551298A patent/JP4790186B2/ja not_active Expired - Fee Related
  • 2001-01-04 DE DE122009000009C patent/DE122009000009I2/de active Active
  • 2001-01-04 ES ES01942277T patent/ES2210171T3/es not_active Expired - Lifetime
  • 2001-01-04 AT AT01942277T patent/ATE252831T1/de active
• 2002
  • 2002-01-16 US US10/050,622 patent/US6486097B2/en not_active Expired - Lifetime
  • 2002-06-27 ZA ZA200205188A patent/ZA200205188B/en unknown
• 2010
  • 2010-04-23 FR FR10C0029C patent/FR10C0029I2/fr active Active

Patent Citations (13)

Non-Patent Citations (3)

Also Published As

Similar Documents

Legal Events