Problems with Tomato and Cucumber Plants

I am new to square foot gardening and this year was my first attempt at it. I have definitely learned quite a bit in reading the book and by reading posts here on the forum. I have recently been having issues with my better beef tomato and also both my pickling cucumber and regular burpless hybrid cucumber plants.

Some of the leaves on the lower branches of the tomato plant are starting to look like this:



Also on certain branches at the top some of the leaves are curling inwards and wilting but are still green. I am not sure if the wilt and curl are due to our wonderful FL heat or not.

In regards to the cucumbers quite a few of the the more mature leaves look like this:



The newer growth is still green but the older more mature parts have gotten like this and started to extend up making the base of the plant look more leggy. I am guessing that the reason those older affected leaves are reaching up is because they are unable to process much of the sunlight, so they are thinking if they go a little higher maybe they could get more sun. Just a wild guess, but that is what I was thinking. I know it isn't exactly the most scientific explanation or guess. Anyway, all comments and advice are welcome, I could definitely use some. On the bright side I have some Blue Lake bush beans that seem to be doing well and a couple small Husky Cherry Red Tomato plants that are producing quite a bit, so all is not lost

maybe someone with more experence than me will chime in here, but I would Google epsom salts, I think the mix is 2 tbls per gal water?

The cucumber leaf appears to have downy mildew.

Check out these two sites. You can enlarge the pictures on the sites and it makes it easier to identify the disease. Also, sometimes their written description may help narrow down the disease.

http://vegetablemdonline.ppath.cornell.edu/factsheets/Cucurbit_List.htm


http://vegetablemdonline.ppath.cornell.edu/DiagnosticKeys/TomLeaf/TomLeafKey.html

On the picture of the tomato, click on the word leaves and it takes you to pictures of various leaf diseases.
Sorry the font is so small, but I can't figure out how to manipulate the font size without screwing up everything.

Hi Jay, to the forum!

The tomato leaves wilting is something I see in the afternoon, especially in late afternoon after a long, hot day. Often giving them a small drink will perk them up again, but I also had this problem when one of them got overwatered. Best thing to do is stick your finger deep into the soil to see how moist the soil is, then decide whether to water. In our heat, the top layer can crust over, which actually helps maintain moisture levels below the crust. If the crust cracks, it's quite likely time to water again. I still recommend testing the soil before the cracking stage, as you might be a bit late if you wait to see it crack. Hope that makes sense!

As for the discoloration of tomato and cucumber leaves, I'm hoping you got help from the links previously posted. If not, let us know, and/or do a search using the search box in the upper left corner of the page, making certain the "Search SFG Forum" box is checked.