Pest of the week – Mealy Cabbage Aphid

The Mealy cabbage aphid (Brevicoryne brassicae) is an aphid pest of brassicas. Due to the mild winter and the recent weather conditons, colonies of mealy aphid have been building in crops of oilseed rape. The aphid causes the flower buds to purple and distort, potentially leading to aborted pods and a reduced yield. If the […]

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Pest of the week – Light Leaf Spot

Levels of Light Leaf Spot are rapidly increasing across the country, especially in susceptible varieties. The cycling nature of the disease means that it can rapidly spread and infect the newer leaves, causing a yield loss. Prevention of the disease is much more effective than cure, and will stop leaf and stem symptoms appearing higher […]

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Early Yellow Rust Infections

Yellow rust is caused by the pathogen Puccinia striiformis. Symptoms appear as parallel rows of yellowish orange coloured pustules on the leaves of plants, usually slowly developing over the winter. In the spring, small patches of infected plants can often be seen. Severe infections quickly cause chlorosis, and later necrosis, of leaves resulting in death […]

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Pest of the week – Frit Fly

Frit fly (Oscinella frit) cause damage to cereal crops, and are most likely to have an effect on crops following grassland or fallow. There are normally several generations per year, with the most damaging generation being in September-October, in newly drilled crops. Symptoms are visible as dead/yellowing tillers, that normally have a small yellow/white larva […]

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