Harvest to Table's Cucumber Growing Problems: Troubleshooting article with descriptions, causes and treatments. OK! THIS is why my cucumber plants (every single one) were chewed off at the stem. Paper collar tip to prevent. (Bummer - I really wish I had done more research last season.)
If you grow your cucumber plants vertically, it's important that you know how to prune it properly to promote healthy growth. This gardener's guide from the folks at Growing Wisdom will walk you through the process from start to finish.