Other seed or soil-borne diseases that are less common include Anthracnose, Bacterial Blight, Brown Spot, Cladosporium Blight, Pink Seed, and Septoria Blotch.
- Caused by Colletotrichum pisi Pat.
- Seed or soil-borne.
- Since spores are spread by splashing rain, Anthracnose thrives under warm, moist weather, frequent showers and dense canopies.
- Spores can survive on stubble for up to two years.
- Appears as grey to cream-coloured spots on leaves and tan to brown lesions on stems.
- The entire lower stem may become covered in lesions, giving it a brown, rough appearance.
- Pod lesions are circular and sunken with reddish-brown margins and reddish centres.
- Close examination of pod lesions often reveals fruiting bodies (acervuli) with orange-pink spores.
- Leaf and stipule lesions are oval, with brown margins and greyish centres, and stem lesions are elongated – they appear a copperish colour when moist and greyish when dry.
- This stage is generally followed by die back of leaves and extensive loss of leaves – entire plants may die back and stems take on a blackish colour.
- Severely diseased plants have an overall reddish-brown appearance.
PREVENTION AND CONTROL
- Use disease-free seed.
- Use four to five-year crop rotations out of pea and other susceptible crops such as lentil and faba bean.