[Mark's Sussex Allotment]

Hi guys,

The growing tips of my French beans are dying on every plant.

They are in the polytunnel and well watered and ventilated.

Any ideas?

[LotuSeed]

The pictures are too out of focus to get a good look. Are any bugs present? Are the tips touching the plastic sides of the tunnel?

Try holding the camera further from the subject when taking a pic or if your camera has a macro setting, use that.

[Mark's Sussex Allotment]

Just took these

[Goosegirl]

If the leaves are speckled as well as bleached it could be red spider mite; if not, then maybe sun scald.

[Mark's Sussex Allotment]

Is it common for the newest tender growth to get fried under glass/plastic?

[Goosegirl]

Is it common for the newest tender growth to get fried under glass/plastic?

It really depends on how big your greenhouse is because bigger ones usually have more windows and a louvre vent for ventilation so reducing temps. Is has been very hot so try damping down the floor with water.

[LotuSeed]

They definitely look a little off color, but from what I can see from the pictures, it doesn't look like they're going crispy and dry. Do the plants die back soon after the tips change color?