Allotment Gardening Advice Help Chat

Growing => Grow Your Own => Topic started by: Hobovore on May 25, 2019, 08:50

Title: Have I been hit by tomato blight?
Post by: Hobovore on May 25, 2019, 08:50

Leaves have dark black spots, some are going pale. Others have black around the edge.

Title: Re: Have I been hit by tomato blight?
Post by: sunshineband on May 25, 2019, 09:46

Early blight shows as pale rings, which is why it is sometimes called Halo Blight, so I would say not. The black spots don't look pustule-like either so they may not be a pathogen so much as physical damage. Keep an eye and f you are worried pick off the affected leaves and don't add them to your compost bin

Title: Re: Have I been hit by tomato blight?
Post by: JayG on May 25, 2019, 10:20

Agree with Sunny - tomato leaves are great whingers and can display their displeasure in a thousand different ways, and it's often hard to work out what's upsetting them.

Doesn't look like blight - when in doubt I give them a weak tomato feed in case there is a slight trace element deficiency (avoid wetting the leaves, which can encourage blight if it's about and also increase the chances of leaf scorch, another common tomato leaf problem.)