concentrations of the active substances often sold commercially range from 10 to 50 by weight however with the present invention one proposes to increase this range so as to embrace from 51 to 90 by weight of these active compounds preferably from 70 to 80 however the concentration may vary according to the application and for instance in the case of a formulation for the treatment of seeds the concentration of the active compound may reach the limit of purity itself of the active compound for diluted applications one may employ liquid diluting agents such as petroleum distillates as for example cyclic or linear aliphatic or aromatic branched or non branched unsaturated or saturated hydrocarbons as for instance ab 9 and or ab 11 isoparaffin n heptane cyclohexane in addition to ketones alcohols esters ethers amides amines with chain sizes preferably in the range of c1 c10 examples of evaluated solvents of the above mentioned classes are cyclohexanone dimethylformamide propylene carbonate n methyl pirrolidone among other non phitotoxic solvents and or mixtures thereof at a concentration ranging from 5 to 49 by weight of the formulation for the treatment of seeds the simple mixture of the active compound with the solvent is sufficient however for the treatment of.