Patent Number: 6,255,311

Title: Fungicidal fused bicyclic pyrimidinones

Abstract: A method for controlling wheat powdery mildew is provided which encompasses applying to the plant, seed, seedling or portion of the plant to be protected, or, to its growing media, an effective amount of a compound of Formula II ##STR1## where Q is O, n is 0, R.sup.3 is halogen, R.sup.4 is halogen or hydrogen, R.sup.5 is an alkyl group having from three to five carbon atoms and R.sup.6 is an alkyl group having from three to eight carbon atoms. Also provided are certain compositions for controlling wheat powdery mildew which contain a compound of Formula II together with a surfactant, an organic solvent and/or a solid or liquid diluent. Also provided are certain fungicidal compounds within Formula II for controlling wheat powdery mildew.

Inventors: Bereznak; James Francis (Aston, PA), Chang; Zen-Yu (Hockessin, DE), Selby; Thomas Paul (Wilmington, DE), Sternberg; Charlene Gross (Wilmington, DE)

Assignee: E. I. du Pont de Nemours and Company

International Classification: A01N 43/54 (20060101); A01N 43/48 (20060101); A01N 43/72 (20060101); A01N 43/84 (20060101); C07D 239/00 (20060101); C07D 239/95 (20060101); A01N 043/54 (); C07D 239/95 ()

Expiration Date: 07/03/2018