Abstract:
The present invention relates to a process for producing microcapsules which contain a shell and a core of a liquid water-insoluble material, where (a) a premix (I) is prepared from water and a protective colloid; (b) a further premix (II) is prepared from the water-insoluble material and at least bifunctional isocyanate (A) or a mixture of two or more different isocyanates containing (A); (c) the two premixes (I) and (II) are mixed together until an emulsion is formed; (d) at least a bifunctional amine is then poured into the emulsion from step (c); and (e) the emulsion is then heated until the microcapsules are formed, and where the liquid water-insoluble material comprises a pesticide, where the protective colloid is a polyvinyl alcohol copolymer having hydrolysis degrees from 60 to 99.9%, and where the polyvinyl alcohol copolymer contains comonomers with anionic groups. Further subject matter are microcapsules obtainable by said process. The present invention also relates to a method of controlling phytopathogenic fungi and/or undesired plant growth and/or undesired insect or mite attack and/or for regulating the growth of plants, wherein the microcapsules are allowed to act on the respective pests, their environment or the crop plants to be protected from the respective pest, on the soil and/or on undesired plants and/or on the crop plants and/or on their environment.
Abstract:
The present invention relates to a method for improving the efficacy of anionic herbicides (B) under hard water conditions, comprising the steps of a) providing at least one anionic herbicide (B) and at least one aminocarboxylate (A), selected from the group consisting of methylglycine diacetate (MGDA; A1), glutamic acid diacetate (GLDA; A2), iminodisuccinate (IDS; A3), N-(2-hydroxyethyl)imino diacetate (HEIDA; A4), ethylenediamine-N,N′-disuccinate (EDDS; A5) and their salts; b) diluting components (A) and (B) with water, wherein the concentration of dissolved calcium, magnesium, iron and aluminum salts in said water is more than 120 ppm; and c) applying the diluted mixture to the area to be treated.
Abstract:
The present invention relates to a salt comprising an anionic pesticide and a cationic polyamine of the formula (A) or (B) as described in the description. The invention further relates to an agrochemical composition comprising said salt. It also relates to a method for preparing said salt comprising combining the pesticide in its neutral form or as salt, and the polyamine in its neutral form or as salt. In addition, the invention relates to a method of combating harmful insects and/or phytopathogenic fungi. It also relates to a method of controlling undesired vegetation. Finally, the invention relates to seed comprising said salt.