Lettuce grey mould

Time to act:

Jun, Jul, Aug, Sep, Oct, Nov

The common, quick-spreading fungal disease Botrytis cinerea strikes in damp, humid weather, and often enters the lettuce through a cut or tear in a leaf. Affected leaves are inedible and should be thrown away but not composted. The worst scenario is when the lettuce is attacked at the base and a slimy, yellowish orange-brown rot forms, which can the kill the entire plant.

Symptoms

A quick-spreading grey mould appears on lettuce leaves, which renders them inedible. If the fungus strikes at the base of the plant, it turns yellowish-brown and becomes a slimy rot.

Find it on

lettuces

Advertisement

Organic

Promptly remove any infected parts of the lettuce. Try to reduce the risk of damage to lettuce leaves by drowning slugs and snails in beer traps, or go on a night-time patrol and remove them by hand. Space plants out to ensure good air circulation, and water early enough in the day to allow the leaves to dry out before nightfall. Also remove any garden debris that might harbour the fungus.

Advertisement

Discover more ideas and inspiration

Related content

Tomato blight

How to cope with rust on garlic

Mildew on cucurbits

Rust

Related offers

FREE P&P

Broccoli 'Ironman'

Broccoli 'Ironman' has excellent disease resistance, uniform heads and great flavour. Enjoy free p&p, worth £4.95, when you buy this variety at DT Brown.

Use code: GWD17MAY

Order now

Offer

Subscriber only content

Save £6 on strawberries

Heavy-cropping mid-summer variety 'Sweetheart', and new late-season 'Cupid', together will produce an extra long crop of delicious strawberries. Save £6 on the collection with this offer.

Unlock now

Offer

Save on tomatoes

Buy a collection of five delicious tomato varieties for just £6.99, or buy 10 plants (two of each variety) for just £9.99. Plus, save on a tomato growing kit when you spend over £10.

Order now