Hi I'm new to this and need some help me Cucumbers was OK until the leaves were Turning whitey grey colour and brittle and crispy. The leaves are dying what is it and what can I do. Hope the images help. Thanks
If they are just the bottom leaves that are doing this then I don't think you need to be overly worried. Cucumbers and tomatoes often lose their bottom leaves.
Increase the humidity, water the gravel as well as the plants.