Nigel Cattlin / Leaf tipping on Rice (Oryza sativa) caused by Leaf scald (Microdochium oryzae) disease, Thailand

Nigel Cattlin / Leaf scald (Microdochium oryzae) early lesion of leaf tip infection on Rice (Oryza sativa), Thailand

Nigel Cattlin / Leaf scald (Microdochium oryzae) early lesion of leaf tip infection on Rice (Oryza sativa), Thailand

Nigel Cattlin / Leaf tipping on Rice (Oryza sativa) caused by Leaf scald (Microdochium oryzae) disease Thailand

Nigel Cattlin / Leaf tipping on Rice (Oryza sativa) caused by Leaf scald (Microdochium oryzae) disease Thailand

Nigel Cattlin / Leaf scald of rice (Monographella albescens) leaf tipping caused by the disease in Rice (Oryza sativa), Thailand

Nigel Cattlin / Discreet spots caused by Apple scab (Venturia inaequalis) to skin surface of Apple (Malus domestica) fruit.

Nigel Cattlin / Apple scab (Venturia inaequalis) infection spots germinated from a spore shower on an apple leaf, New York, USA,

Nigel Cattlin / Early blight or target spot (Alternaria solani) discreet necrotic lesions and some chlorosis on a tomato leaflet, New York, USA, May.

Nigel Cattlin / Leaf spot or Alternaria blight (Alternaria helianthi) discreet spots with a chlorotic halo on a sunflower leaf, France

Nigel Cattlin / Frogeye leaf spot (Cercospora sojina) discreet circular lesions on soybean leaf, Florida, USA, May

Nigel Cattlin / Frogeye leaf spot (Cercospora sojina) discreet circular lesions on soybean leaf, Florida, USA, May

Nigel Cattlin / Frogeye leaf spot (Cercospora sojina) discreet circular lesions on soybean leaf, Florida, USA, May

Nigel Cattlin / Chocolate spot (Botrytis fabae) early symptoms of discreet necrotic loesions on the leaf of a field bean (Vicia faba)

Nigel Cattlin / Flag leaves on a wheat crop with clear and discreet droplet from a spray application from a tractor and boom sprayer.

Nigel Cattlin / Powdery mildew (Erysiphe graminis) infection on wheat crop coming into ear, white pustules on the stem and lower leaves

Nigel Cattlin / Powdery mildew (Erysiphe graminis) infection on wheat crop coming into ear, white pustules on the stem and lower leaves

Nigel Cattlin / Black spot (Diplocarpon rosae) discreet dark lesions on young rose leaves, Berkshire, England, UK, June

Nigel Cattlin / Black spot (Diplocarpon rosae) discreet dark lesions on young rose leaves, Berkshire, England, UK, June

Nigel Cattlin / Black spot (Diplocarpon rosae) a fungal disease on rose leaves, Berkshire, England, UK, May

Nigel Cattlin / Leaf & pod spot (Alternaria brassicae) discreet black lesions on the stem and seed pods of oilseed rape crop