| 主权项 |
1. A bioactive agrichemical concentrate comprising A) a conventional antifungal bioactive agrichemical active or active formulation concentrate, wherein the active is selected from the group consisting of a strobilurin, a dithiocarbamate, a triazole, a borate, chlorothalonil, dichloran, mancozeb, and myclobutanil, and B) a bioactive acid composition comprising, as a critical component thereof, an efficacious antifungal active consisting essentially of a combination of i) at least one carboxylic acid selected from citric acid, valeric acid, itaconic acid, acetic, citriconic acid, lactic acid, malic acid, succinic acid, aldaric acid, malonic acid, proprionic acid, malonic acid, maleic acid, salicylic acid, glutaric acid, tartaric acids, and benzoic acid, ii) at least one antimicrobial metal ion or ion source wherein the antimicrobial metal ions or the antimicrobial metal ions of the ion source are selected from the group consisting of silver, a combination of silver and zinc, a combination of silver and copper, and a combination of silver, copper and zinc, and iii) optionally, at least one surfactant; wherein the acid in the bioactive acid composition is present at a level of at least 40 weight percent based on the weight of the bioactive acid composition and in a molar excess relative to the metal ions of at least 2 times; said concentrate being efficacious in killing, controlling and/or inhibiting the growth of fungi on plants when applied in a diluted state to the soil in which a seed, crop or plant is or is to be planted; to the aqueous environment in which plants are growing; or to plants in their growing environment: the concentrate being formulated such that in the diluted state when the acid of the diluted bioactive composition (B) is from 0.01 to 20 weight percent based on the weight of the bioactive acid composition; i) the amount of antimicrobial metal ion attributed to the bioactive composition (B) is 500 ppm or less in the case of a single metal ion or 1000 ppm or less in the case or multiple metal ions, based on the weight of the bioactive acid composition, ii) the concentration of the surfactant, if present, is 0.001 to about 3 weight percent based on the weight of the bioactive acid composition (B), iii) the pH of the dilute solution when diluted in purified water is at least 2 and less than 6, and iv) the conventional antifungal active is present at or near its conventional application level or less, provided, when less, the antifungal efficacy of the diluted concentrate is greater than either the conventional antifungal agent or the bioactive acid composition at the same levels on its own. |
