Fig. 3. Increased exudate accumulation induced by some fungicide spray materials. A, Fungicide‐induced accumulation occurred in any region of the stigmatic surface and was not necessarily limited to the depression between lobes. Image taken 4 h after spraying with azoxystrobin. B, Exudate production could be very localized with an accumulation observed between as few as four adjacent cells; neighbouring cells exhibited no or little accumulation. Image taken 4 h after spraying with azoxystrobin. C, Considerable exudate accumulation occurred in any region of the stigmatic surface. Image taken 4 h after spraying with azoxystrobin. D, Accumulation of fluid was observed bridging between cells. Image taken 4 h after spraying with azoxystrobin. E, Substantial and copious secretions inundated the whole stigmatic surface. Image taken 24 h after spraying with cyprodinil. F, Stigmatic papillae completely submerged or only apical regions exposed. Image taken 24 h after spraying with cyprodinil.