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Avatar for JohnnyUSA
May 13, 2017 8:03 PM CST

Hello, I'm located in NJ and have Tomatoes & Cucumbers growing inside my greenhouse with drip irrigation . We have had Nights in the 40's for a few days . The Weather is inconsistent . Are my tomatoes & Cucumber plants showing signs of cold weather stress or is it something else ? Some are doing good and some not so well . What could it be ? Fungus ? Insect problem? Or just cold problem ? Thank you in advance .


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May 13, 2017 8:38 PM CST
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
I suspect they are suffering from cold. The tomatoes may get over it but I'm not sure the cucumbers will. Don't plant tomatoes out until the temperatures stay above 50. Don't plant cucumbers until the temperatures stay above 70.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada
May 14, 2017 10:07 AM CST
Name: Philip Becker
Fresno California (Zone 8a)
Last picture looks like damping off.
Dont get overzealous with water. You might be drounding them. Let soil dry some. If soil crusts over on top you may just need to mist top if lower soil is still moist. It would be helpfull to know how warm greenhouse gets during day. Let us know ? Warm weather veges dont grow well with 40s a nite, but, they will grow if it warms up during day.
I know ! I do it ! Tomatoes, probably struggling from cool nites, but, damage also could be fungus gnats. Check for them using a pencil and brush top of soil, hear and there. If you see any little gnats ! There probably fungus gnats. Maggots eat roots, read up on them and see. Some people swear they dont.
NOW !!! Go check ! And plant some more cucks. The ones you got are goners ! They will take to long to recover. You'll be ahead of yourself !
I swear ! 😎😎😎
Anything i say, could be misrepresented, or wrong.
May 14, 2017 10:10 AM CST
Name: Rita
North Shore, Long Island, NY
Zone 6B
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Those little cucumber plants are being eaten by some sort of insect. I suspect slugs!!
Avatar for JohnnyUSA
May 14, 2017 10:43 AM CST

Thank you all for your help truly appreciated.

.The weather have been 40s nights and 60s days. NJ zone 6A last frost date is may 18th.

The weather has been very damp and raining ALL week.

Currently, my watering schedule is 3 X a day for 20 minutes . I may reduce this to 2 X a day and see what happens .

I made a neem oil and water mix and spayed all over plants and soil . I saw little red things jumping all over , is that fungus gnats . ?

Thank you,
May 14, 2017 11:18 AM CST
Name: Elaine
Sarasota, Fl
The one constant in life is change
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Yes, the cold weather slows the plants growth down, so you need to water less and fertilize less when it's cold as well. As Daisy said, I think your cucumbers are toast, so go ahead and plant some more seeds.

There might be more than one problem going on with the tomatoes, given the various spots and leaf curling but there seem to be some burnt edges on the leaves that might indicate fertilizer burn.

I'd go for perhaps a mild soapy water spray if the neem oil doesn't take care of insects. 1/2tsp. dish soap to a quart of water - stronger is NOT better and may make the leaves photosensitive. So rinse the plants well after doing this.

"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill
May 14, 2017 12:41 PM CST
Name: Philip Becker
Fresno California (Zone 8a)
Ohh ! Johnny Johnny Johnny !😬!
I dont know how much water there getting each time you water them. But ! It sounds like ground is constantly wet. Perfect environment for fungus gnats. I'm pretty dog gone shure thats what you got. You've got to get rid of them. Read up on killing them. To much to get into hear.
Watering ownce a day could be to much. I know ! I learned the hard way. The dudes prety much won.😑
I'd fertilize 1/4 strength ownce a week, after plants have true leaves.
Anything i say, could be misrepresented, or wrong.
Avatar for JohnnyUSA
May 14, 2017 4:33 PM CST

Thank you all for your suggestions and tips . I will check for fungus gnats , definitely water less , spray neem and dish liquid soap and plant new cucumber seeds to replace the dead! and see what happens ! I will keep you posted !

Thank you
May 15, 2017 10:04 AM CST
Name: Philip Becker
Fresno California (Zone 8a)
Break out all weapons !
AND !!! CHARGE !!!
Rolling on the floor laughing 😎😎😎
Anything i say, could be misrepresented, or wrong.
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