I canned tomatoes and wanted to make pickles..but for some reason, my cukes aren't producing much. I've only picked about 5 in the past 6 weeks. Same with zuchinni. I have raised beds...new this year. I used really great soil and fertilized once. Just recently, some of the leaves on my cuke plants have this white on them...like someone dropped very diluted white paint on some of them. Help?!