Brown crispy courgette leaves

I did a search but cant find this exact problem.  I have 5 courgette plants in a big raised bed, under a munty frame.  All were going great guns - big healthy plants, lots of green growth, and plenty of fruit forming fine.  Male flower heads were dropping off quite quickly but didnt seem to be causing any probs.

Was away for 2 days, came back and one plant looks really sick - almost all the leaves have gone very brown and crispy, and slightly curled edges.  Other plants look fine.

Bed was well manured beforehand.  It has been raining a lot but they have a good 1.5 feet of well draining soil before our hard clay.

I have noticed some black bugs on some of the stems and flowers.  Nothing obvious on the leaves.

Pics attached.

I can't help you with the reason for the brown crispy leaves -- someone else might have an answer.

BUT it is not caused by the bugs, which are just black fly and can easily be squashed (mind those prickly leaves) or washed off.

I would sugges you remove the leaves rigth from the base of the stalk and the plant has plenty of new ones growing which look fine. keep it weel watered, a little feed and hope all will be well.

Hope that helps a bit  :blink:

Could they just be suffering from lack of water? 

Doesn't look like Mosaic Virus as far as I know.

Thanks folks. I cut the affected leaves off last night, not many left! Other plants look totally fine. Gave it a good feed and fingers x it doesn't spread. I've had v bad powdery mildew so maybe just a symptom of that.

Hmm, just checked that link and looks identical. Tonight even the new leaves are going curly brown and crispy. Reluctant to lift it as still producing and none of the others have symptoms, but maybe will just rip it out to be safe.

Thx again

Interesting - they are in a bed next to where I just lifted my garlic, which had bad rust (still great bulbs though  ).  I've taken the leaves off, but not many left!  And even the new small ones are showing signs.  Think I might just lift it...

It aint fair - everyone moans about how many courgettes they have - I love them and grew extra this year and still not really enough