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BR-112021025876-B1 - USE OF BENZYL ALCOHOL AS A HERBICIDE

BR112021025876B1BR 112021025876 B1BR112021025876 B1BR 112021025876B1BR-112021025876-B1

Abstract

USE OF BENZYL ALCOHOL AS A HERBICIDE. The invention relates to the use of benzyl alcohol as a systemic herbicide. The invention also relates to a method for controlling harmful or undesirable plants, comprising applying a composition comprising the herbicide benzyl alcohol to harmful or undesirable plants, or parts of such harmful or undesirable plants, or even to the soil where such harmful or undesirable plants emerge.

Inventors

  • Alexandra Fregonese
  • Alexandre Eveillard

Assignees

  • INNOVI

Dates

Publication Date
20260310
Application Date
20200622
Priority Date
20190620

Claims (20)

  1. 1. Use of benzyl alcohol characterized by the fact that it acts as a systemic herbicide.
  2. 2. Use according to claim 1, characterized in that benzyl alcohol is the only active substance.
  3. 3. Use according to claim 1, characterized in that benzyl alcohol is used together with at least one co-herbicide.
  4. 4. Use according to claim 3, characterized in that said co-herbicide is chosen from inhibitors of molecular synthesis, inhibitors of cellulose synthesis, inhibitors of the shikimic acid pathway, inhibitors of auxin synthesis, inhibitors of cell division, inhibitors of acetolactate synthase (ALS), inhibitors of 4-hydroxyphenylpyruvate dioxygenase (4-HPPD), inhibitors of phytoene desaturase (PDS), inhibitors of 1-deoxy-D-xylulose-5-phosphate synthase (DOXP), inhibitors of acetyl-coenzyme A carboxylase (ACCase) or inhibitors of photosystem II (PS II).
  5. 5. Use, according to claim 3, characterized by the fact that said co-herbicide is a compound devoid of herbicidal activity that allows increasing and/or speeding up the herbicidal activity of benzyl alcohol.
  6. 6. Use, according to any one of claims 3 to 5, characterized in that the weight ratio between the herbicide benzyl alcohol and the co-herbicide is between 150:1 and 1:150, preferably between 120:1 and 1:120, in particular between 100:1 and 1:100 or between 50:1 and 1:50, and notably between 20:1 and 10:1, in particular between 20:1 and 5:1.
  7. 7. Use, according to any one of claims 1 to 6, characterized in that it is for the control of harmful or undesirable plants.
  8. 8. Use, according to any one of claims 1 to 7, characterized in that the herbicidal activity is not selective.
  9. 9. Use, according to any one of claims 1 to 8, characterized in that the herbicidal activity is exerted by penetration via the aerial and/or underground parts of the plant.
  10. 10. Use, according to any one of claims 1 to 8, characterized in that the herbicidal activity is preventive.
  11. 11. Use, according to any one of claims 7 to 10, characterized in that the harmful or undesirable plants are chosen from the set of plants of the green line or Archaeplastida, in particular monocotyledonous plants, dicotyledonous plants and pteridophytes.
  12. 12. Use, according to any one of claims 1 to 11, characterized in that benzyl alcohol is used, alone or together with at least one co-herbicide, at a ratio of 5 L/hectare to 800 L/hectare, preferably from 50 L/hectare to 500 L/hectare, in particular from 50 L/hectare to 300 L/hectare, for example, from 100 to 200 L/hectare.
  13. 13. Use, according to any one of claims 1 to 11, characterized in that benzyl alcohol is used, alone or together with at least one co-herbicide, at a ratio of 5 L/hectare to 10 L/hectare, for example from 10 L/hectare to 80 L/hectare, notably from 15 L/hectare to 60 L/hectare.
  14. 14. Use, according to any of claims 1 to 13, characterized by the fact that it is carried out post-emergence, on the seedling (juvenile stage prior to flowering), the plant in the flowering stage (before, during or after pollination), the plant after fertilization, the plant in the fruiting stage, the fruit, the flowers, the leaves, the stems, the roots or in the soil, and/or the culture medium, before or after sowing or even in intercropping or in inter-rows.
  15. 15. Use, according to any one of claims 1 to 14, characterized in that the herbicide benzyl alcohol is applied by spraying, watering, or dispersing powders and/or granules.
  16. 16. Use, according to any one of claims 1 to 15, characterized in that benzyl alcohol is formulated, alone or together with at least one co-herbicide, in a composition that optionally includes at least one adjuvant or excipient acceptable in plant protection.
  17. 17. Use, according to any of claims 1 to 16, characterized in that it is in the form of an aqueous solution or a concentrated solution or suspension, an oily dispersion or in the form of microcapsules, powder or granules.
  18. 18. Use according to claim 16 or 17, characterized in that said adjuvant or excipient is chosen from surfactants, anti-moss agents, preservatives, antimicrobial agents, antigel agents, thickening agents, colorants, solubility enhancers and penetration and/or expansion facilitators.
  19. 19. Use according to claim 18, characterized in that the weight ratio between the total amount of herbicide and surfactant can be between 0.5:100 and 100:1, in particular between 0.5:50 and 50:1, more particularly between 0.5:20 and 20:1, notably between 1:20 and 10:1, notably between 1:10 and 5:0.5.
  20. 20. Use, according to any one of claims 3, 4 or 6 to 19, characterized in that said co-herbicide is chosen from glyphosate or one of its ester salts or derivatives; benzoic acid; pelargonic acid; dicamba and 2,4-dichlorophenoxyacetic acid.

Description

[0001] The invention relates to the use of benzyl alcohol as a herbicide, in particular as a systemic herbicide. [0002] Pesticides are natural or synthetic chemical substances used in agriculture to control different types of harmful agents (diseases, pests and harmful plants) with the exception of products for medical and veterinary use. [0003] Among pesticides, herbicides are distinguished. [0004] Pesticides are intended to protect crops against insects, diseases and weeds. They are used in agriculture to destroy or combat crop pests or for the treatment of stored products such as: - grains or cereals stored in silos that may be altered by fungi, mushrooms or even destroyed by certain insects; - fruits whose preservation must guarantee sanitary, gustatory and organoleptic qualities; - in forestry, at the time of timber production to limit the action of insects and fungi; - at the time of weeding to prepare the forest land, clear conifers, for example, or to destroy any species harmful to the development of forest species; - the storage of timber before marketing and use also requires the use of fungicides and insecticides to limit any alteration; - for weeding uncultivated areas, railways, fences, power lines, public garden paths, lawns, or around recreational water bodies; - for weeding cultivated areas; - for pruning, namely, the partial or total destruction of stems and leaves of tubers (such as potatoes, beets, etc.) in order to facilitate mechanized harvesting with the aid of harvesters and to improve the quality of the tubers (preservation, disease protection) or to limit their size. [0005] A "pesticide" is understood to be a substance used to neutralize or destroy a pest, a vector of human or animal disease, a plant or animal species that is harmful or disruptive to the course of production or storage of agricultural products. [0006] A "herbicide" is understood to be a substance used, notably, to neutralize or destroy a plant species that is harmful or disruptive to the course of production or storage of agricultural products, or in the applications mentioned below that do not interfere with the harmful action of an animal pest or a microorganism. [0007] In particular, a herbicide may be used to eliminate harmful or unwanted vegetation from certain cultivated or uncultivated areas or land, notably for weeding cultivated areas (especially in intercropping), uncultivated areas, railways, fences, power lines, public garden paths, lawns or even around recreational water bodies, etc., or even for pruning. [0008] Herbicides disrupt the functioning of plant physiology, its growth and/or the biosynthesis of cellular constituents. [0009] Herbicides represent 40% of pesticides used in agriculture and currently, the inhibition of photosynthesis is one of the most current modes of action of these active substances. [0010] The use of herbicides can also be carried out in addition to or as a replacement for extraction actions from the banks of water bodies, quarries, etc. for the treatment of animal housing, animal storage and transport equipment, dairy equipment, etc. [0011] In this description, the terms "vegetable" and "plant" will be used interchangeably. A "harmful plant," "unwanted plant," or "undesirable plant" means a plant whose sprouting or growth is not desired, and which one wishes to destroy or whose development one wishes to limit, notably plants commonly called "weeds" or "adventitious plants." [0012] The Biological Testing Commission (CEB) of the French Plant Protection Association classifies herbicides according to their mode of penetration, the type of migration via the plant's distribution organs, and selectivity in relation to plants. [0013] Thus, in terms of penetration method, we distinguish: - herbicides that penetrate the soil: these penetrate the underground organs of plants (roots, seeds, seedlings). They are used in pre-elevation herbicide treatment, carried out on the seed before the plant in question (cultivated plant or weed) is raised, and in preventive herbicide treatment in areas devoid of vegetation, but concerned about the usual presence of weeds; and - herbicides that penetrate the foliage: applied to the foliage, they penetrate the aerial organs of plants (leaves, petioles, stems). They are used in post-elevation herbicide treatment, carried out after the plant in question (cultivated plant or weed) has been raised. [0014] Herbicides can act via one or the other of these modes of penetration, or both. [0015] In terms of migration via the plant's distribution organs, a distinction is made between: - contact herbicides, which act after penetrating more or less deeply into the tissues, without any migration from one organ to another of the treated plant; and - systemic herbicides, with the ability to act after penetration and/or migration from one organ to another of the treated plant. [0016] In terms of selectivity, a distinction is made between: - selective herbicides, which d