Crop enhancement

Abstract

The present invention relates to a method of enhancing a crop by applying to plants, plant parts, plant propagation material or a plant growing locus, a compound of formula (I), which is a compound of formula (Ia), (Ib), (Ic), (Id), (Ie) or (If): where each R, Rand Ris independently selected from H, Cl, F, Br and CF; each Ris independently selected from CH, Cl, Br and CF; and each Ris independently selected from where Rand Rare each selected from Cl, Br, CH, CHCH, CFand OCFH; Ris selected from F and OCH; Ris selected from H, CHand CHCH; and Ris phenyl optionally substituted by F or Cl; where Rand Rare each selected from Cl, Br, CH, CHCH, CFand OCFH; each Ris independently selected from Cl and Br, each Ris independently selected H, CHand CHCH; each Ris independently selected from H and CN; and each X is independently selected from CH and N; or a composition comprising a compound of formula (I).