I have noticed some of my zucchini have white marks on them that look like scars. Is this sunburning or maybe a disease?
Also, what problems come with garden plants being too close together? I had some really impressive looking plants planted close together this year, but the quantities of produce were small. Black spots ruined my tomatoes, my zucchini produced for only a few weeks, my eggplants had almost no fruit and had holes in their leaves, and my winter squash vines grew into each other, overwhelming their garden space. Any suggestions for next year?