I'm growing loofahs and the leaves are turning rusty with squiggly tubes what is it and what is the corrective solution
Boy this is a tough one - especially without a picture, even with your descriptive technical description! Squash or cucurbits (which is what Loofahs are) sometimes get rust, or in some cases the leaves seem to be getting paler and sort of rough from spider mites. Is this what it is?
The squiggly tubes could be some kind of leaf miner, in which case, it's too late to do much more than cut those leaves off and destroy them to prevent another generation from emerging and continuing the damage. There really is no other control, unfortunately.
Without some kind of visual aid, that's my best guess,
Best of luck,
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