The method for producing pyripyropene insecticides aqueous suspension concentrate formulation

New suspension concentrate formulation of the invention relates to a method for producing compounds of formula I in an aqueous suspension concentrate formulation of a compound of formula I as well. The method comprises a) an aqueous slurry of coarse particles of a compound of Formula I, wherein the compound of Formula I is at least partially present in its Form B, the Form B at 25 deg.] C and the X-ray powder diffraction pattern in Cu-Kα radiation It exhibited the following 2θ values ​​given as reflected in at least 3, preferably at least four, especially at least 5 or at least 7, or at least nine or all of: 8.0 ± 0.2 °, 9.5 ± 0.2 °, 10.7 ± 0.2 °, 11.0 ± 0.2 °, 11.2 ± 0.2 °, 11.7 ± 0.2 °, 14.2 ± 0.2 °, 15.6 ± 0.2 °, 6.5 ± 0.2 °, 17.7 ± 0.2 °, 21.5 ± 0.2 °; b) at least one surfactant the presence of coarse particles at least partially in its pulverized form B of the compound of formula I is present in the slurry agent.