Leaves can drop off cucumber (Cucumis sativa) plants for a number of reasons. Discover some the possible causes in this Quick Tips video with Kevin Smith, BBC Gardeners' World Magazine.
Slug or snail damage to the stems is the most likely cause of leaves dropping off cucumber plants. The leaves can also scorch in bright sun, get neck rot in damp soils and red spider mite infestation can prove fatal. These problems cause leaves to bleach, wilt or shrivel, although they don’t usually cause every leaf to fall.
But, first and foremost, keep an eye out for slugs and snails!