I had three beautiful cucumbers come through, 2 of them I harvested this week, but all the new cucumbers are turning yellow and dying when they get about an inch long. What is causing that? I read that cucumbers are suseptable to overwatering, and that you should let them dry out in between deep waterings. I am trying very hard not to overwater, I always wait until the surrounding soil is dry when I stick my finger in it. What am I doing wrong? All my other stuff is doing great! The plant itself shows no sign of distress... tall, green, big leaves..