Diseases

Brown Rust

Symptoms are small, orange-brown pustules randomly scattered over wheat leaves

Chocolate spot

Fungal disease of beans with red-brown spot symptoms (Botrytis fabae & B. cinerea)

Early Blight

Symptoms often appear first on older leaves near the ground as dark brown spots surrounded by a zone of yellowing or chlorosis.

Fusarium Ear Blight

Patches of early senescence and bleaching on the ears, with harvested grains appearing pale, shrivelled and often tinged with pink pigmentation

Late blight

An oomycete disease of potatoes and tomatoes that caused the Irish potato famine

Light Leaf Spot

Disease of oilseed rape and some vegetable brassicas, caused by the fungus, Pyrenopeziza brassicae.

Net Blotch

Net blotch of barley (causal pathogens: Pyrenophora teres f. sp. teres (Net form) & P. teres f.sp. maculata (spot form)

Phoma stem canker of oilseed rape

Fungal disease spread from crop debris (Plenodomus species, formerly Leptosphaeria species)

Rhynchosporium

Leaf blotch or Scald of winter barley (causal agent Rhynchosporium commune)

Sclerotinia stem rot of oilseed rape

Fungus causing stem rot with a white mould appearance

Septoria leaf blotch

Following the latent phase, where the fungus can develop undetected by eye, pale brown lesions appear on the leaves with small dark fungal bodies inside.

Take-all root disease

Black necrotic lesions on the roots and patches of prematurely senescing, thin and stunted plants with small ears and little or no grain filling. 

Yellow Rust of Wheat

Fungal disease caused by Puccinia striiformis. Single yellow pustules of spores <1mm on young plants become longer yellow stripes on leaves of older plants.