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
  • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
  • A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
• • 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
  • A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
  • A01N31/02—Acyclic compounds

Definitions

• Suckers in Virginia tobacco are chemically controlled by using two main types of substances: contacts (fatty alcohols, such as n-decanol) and systemics, such as maleic hydrazide (MH).
• contacts fatty alcohols, such as n-decanol
• systemics such as maleic hydrazide (MH).
• Fatty alcohols are generally very effective in killing small suckers, but they are characterized by a disgusting smell, which can be very annoying for farmers during the distribution on the cultivars, causing nausea, vomiting, suspension of work. etc. Furthermore people living in the surrounding areas may complain about the smell and limit the tobacco producer's ability to use this valuable chemical pinching agent in cultivation of his tobacco.
• One aspect of this invention is a method of inhibiting the growth of suckers in tobacco plants which comprises applying to said tobacco plants after topping an effective amount for inhibiting tobacco sucker growth of an aqueous solution containing as active ingredient from about 10% to about 90% by weight of a saturated C 6 to C lg fatty alcohol and about 90% to about 10% of polyoxyethylene sorbitan ester comprising a mixture of mono, di and triesters.
• polyoxyethylene sorbitan ester comprises a polyoxyethylene sorbitan ester having the formula H 2 ) 7 CH 3
• w + x + y + z is between 6 and 25.
• fatty alcohol is N-decanol.
• fatty alcohol is N-decanol.
• said fatty alcohol constituent comprises a mixture consisting essentially of N-octanol and N-decanol.
• polyoxyethylene sorbitan ester is a condensation reaction product of ethylene oxide and sorbitan fatty acids wherein the fatty acids are reacted in molar excess of from 6 to 25 moles per mole of ethylene oxide.
• said solution includes an emulsifying agent emulsifying agent, wetting agent, spreaders, solubilizers, stickers, foam suppressors and drift control agents.
• liquid composition for inhibiting the growth of tobacco suckers comprising an effective amount for inhibiting tobacco sucker growth of an aqueous solution containing as active ingredient from about 10% to about 90% by weight of a saturated C 6 to C lg fatty alcohol and about 90% to about 10% of polyoxyethylene sorbitan ester comprising a mixture of mono, di and triesters.
• said saturated fatty alcohol comprises N-decanol.
• said saturated fatty alcohol constituent comprises a mixture consisting essentially of
• N-octanol and N-decanol Another aspect of this invention is disclosed further including an emulsifying agent, wetting agent, spreaders, solubilizers, stickers, foam suppressors and drift control agents.
• Another aspect of this invention is disclosed a liquid composition for inhibiting the growth of tobacco suckers as recited above further including a wetting agent.
• Another aspect of this invention is disclosed further comprising the steps of sequentially and alternately contacting the crop buds with said aqueous solution and a growth regulator.
• Another aspect of this invention is disclosed further comprising applying said aqueous solution selectively to the suckering zone. Another aspect of this invention is disclosed further comprising applying said aqueous solution at a rate of from about 0.3 to about 20 ml per cultivar.
• Another aspect of this invention is a method for the inhibition of secondary growth in azaleas comprising applying topically an effective amount of the aqueous solution.
• Another aspect of this invention is disclosed is the inhibition of plant growth by topical application of chemical agent to meristematic tissue, the improvement which comprises the utilization of an effective amount of a composition comprising as active ingredient from about 10% to about 90% by weight of a saturated C 6 to C lg fatty alcohol and about 90% to about 10% of polyoxyethylene sorbitan ester having the structure ( CH 2 ) 7 CH
• w + x + y + z is between 6 and 25.
• the long chain fatty acid of this invention constitutes the active ingredient of the formulation for chemical suckering of tobacco but the critical factor in masking the objectionable odor of the fatty acid is the presence in the polyoxyethylene sorbitan ester of an Gas Chromatographic peak between 18.00 minutes and 19.00 minutes of column retention time.
• Fig 1 shows the GC trace for the polyoxyethylene sorbitan ester of the control standard n-decanol formulation (20/80 weight ratio) .
• Fig 2 shows the polyoxyethylene sorbitan ester of this invention showing clearly second peak from the left having a retention time of 18.5 minutes is present but is not present in the polyoxyethylene sorbitan ester of the commercial control formulation which is Royaltac, a product of Uniroyal Chemical Company.
• a water-containing or aqueous emulsion is prepared from a solution, as described below, into which a surface active agent has been added.
• a suitable liquid solution is formed by dissolving the active ingredient, saturated C 6 to C lg fatty alcohol in an aqueous or organic solvent.
• the solvent which acts as the carrier is an organic solvent.
• Preferred solvents include aromatic hydrocarbons such as toluene and xylene. Additional solvents that are preferred include such organic compounds as acetone, methanol, isopropanol, tert-butyl alcohol, cyclohexanone, dioxane, dimethylformamide, dimethyl sulfoxide, ethylene dichloride, diacetone alcohol and N-methy lpyrrolidone .
• Surface active agents suitable for purposes of forming effective aqueous emulsions within the contemplation of our invention are known to those skilled in the art.
• McCutcheon ' s Detergents and Emulsifiers Allured Publishing Corp. , Ridgewood, New Jersey (1970); U.S. Patent 2,514,916, at Columns 2 to 4; and U.S. Patent 2,547,734, at Columns 3 and 4, for example, provide detailed examples of such surface active agents suitable for this purpose.
• the surface active agent may be anionic, non- ionic or cationic.
• our composition can take the form of an aerosol.
• the first solvent is conventional in the sense that it is not highly volatile.
• the resulting solution is then admixed with a second solvent that is highly volatile.
• the volatile second solvent is commonly called a "liquid aerosol carrier. "
• the aerosol carrier is liquid only under elevated pressure. At ambient temperature and pressure, namely 25 degrees Celsius and one (1) atmosphere pressure, such an aerosol carrier is typically a gas.
• emulsifying agent wetting agent, spreaders, solubilizers, stickers, foam suppressors and drift control agents at effective levels, generally between .01 and 2 weight per cent.
• the following method was utilized to determine the presence critical component of the which occurs at 18.5 +/- 0.5 minutes as shown in Fig 1 and Fig 2.
• the samples to be tested were weighed into 3 ml reactive vials and magnetic stirring fleas were added along with 1 ml of Silanization Reagent [BSA; TMCS; TMSI 3:2:3 [N,0-bis(trimethylsilyl)acetamide + Trimethylchlorosilane + N-trimethyl silylimidazole] was added. 1ml of toluene was added to allow the sample and Reagent to mix and react. The samples were allowed to stir (while lightly capped to prevent excess air/humidity from entering and to allow pressure release) for 30-40 min.
• Region 1 The trial in Region 1 was carried out on a silty-clay soil, with a pH of 7.9, organic matter content of 1.7% and low nitrogen content. Tobacco was grown following the normal farm practices in central Italy, as reported in Table I. N- decanol for sucker control was applied as a water solution of the formulated products (4% v/v).
• Control formulation and the formulation of this invention were compared using a randomized block design, with four replications and a plot surface-area of 20 m 2 .
• Flue-cured leaves were evaluated for quality, by a technical commission composed of three experts from the state agency with responsibility. During this evaluation, the extrinsic characteristics of tobacco leaves (development, color, tissue texture, consistency, etc ..) were subjectively recorded and used to estimate the percentage of yield to be assigned to each of the three commercial grades A, B and C (A being the highest quality grade).
• Trial in Region 2 The second trial was carried out on a sandy soil, following the normal farming practices for Northern Italy, with respect to the choice of the cultivar (K326), the date of transplanting (28.5.96), plant spacing (1.10 x 0.37 m), plot surface area (374 m 2 ). Biological activity was recorded.
• the flavor of the formulation of this invention proved to be characterized by a high intensity at the treatment and two hours later, but it was considered, due to its
• I intensity of smell.
• A acceptability of smell.
• Example 1-the formulation of the invention was considered to be much more acceptable than the commercial formulation for its smell and low intensity and persistence.
• I intensity of smell.
• Example 1 the formulation of the invention, proved to have a less intense smell compared to the

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• Life Sciences & Earth Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Health & Medical Sciences (AREA)
• Wood Science & Technology (AREA)
• Pest Control & Pesticides (AREA)
• Plant Pathology (AREA)
• Engineering & Computer Science (AREA)
• Dentistry (AREA)
• Agronomy & Crop Science (AREA)
• Zoology (AREA)
• Environmental Sciences (AREA)
• Toxicology (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Catching Or Destruction (AREA)

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• 1998
  • 1998-05-13 KR KR1019997010169A patent/KR20010012220A/ko not_active Application Discontinuation
  • 1998-05-13 WO PCT/US1998/009731 patent/WO1998051148A1/en not_active Application Discontinuation
  • 1998-05-13 TR TR1999/02732T patent/TR199902732T2/tr unknown
  • 1998-05-13 CA CA002288753A patent/CA2288753A1/en not_active Abandoned
  • 1998-05-13 HU HU0002746A patent/HUP0002746A3/hu unknown
  • 1998-05-13 AU AU73843/98A patent/AU7384398A/en not_active Abandoned
  • 1998-05-13 EP EP98921170A patent/EP0981274A1/en not_active Withdrawn
  • 1998-05-13 BR BR9815898-8A patent/BR9815898A/pt not_active IP Right Cessation
  • 1998-05-13 IL IL13260698A patent/IL132606A0/xx unknown
  • 1998-05-13 CN CN98805186A patent/CN1256615A/zh active Pending
• 1999
  • 1999-11-16 BG BG103893A patent/BG103893A/xx unknown

Non-Patent Citations (1)

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