Poor Cucumber and courgettes.

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hubballi

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Poor Cucumber and courgettes.
« on: June 28, 2011, 18:55 »
I have a greenhouse cucumber in a large pot which is fed and watered with comfry. The top of the plant always looks healthier but towards the bottom the leaves just got yelling, curly and dry. Then the forming cucumber that are minuscule end up going very thin where it comes off the stalk and withers. Please do9n't say I am not watering as I do every day. The greenhouse gets very hot over 40oC in the sun but with shading there is nothing more I can do.

courgettes are similar. The forming fruits go thin where it comes off the plant and the whole thing withers. Fed and watered as above.

Very discouraged :-(

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gobs

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Re: Poor Cucumber and courgettes.
« Reply #1 on: June 28, 2011, 19:10 »
Any sign of mites?
"Words... I know exactly what words I'm wanting to say, but somehow or other they is always getting squiff-squiddled around." R Dahl

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hubballi

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Re: Poor Cucumber and courgettes.
« Reply #2 on: June 28, 2011, 20:04 »
No, no mites. Plenty of aphids and whitefly but not on the cucumber.

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Yorkie

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Re: Poor Cucumber and courgettes.
« Reply #3 on: June 28, 2011, 21:22 »
I suspect that it's simply too hot in the greenhouse - 40*C will stress out any plant.  Courgettes are frequently grown outside so might be even more susceptible to the heat?

As this is greenhouse growing I'm going to move it over to the growing in greenhouses forum for further info  :)
I try to take one day at a time, but sometimes several days all attack me at once...

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pink aubergine

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Re: Poor Cucumber and courgettes.
« Reply #4 on: June 29, 2011, 14:55 »
When very hot, open as many doors, windows etc as possible. If a greenhouse perhaps you could remove some of the glass.
In previous years I have installed a circulating fan to keep the air moving, hubby wired up a computer fan with long cylinder of plastic to draw up some cooler air from base of greenhouse.
Also I spray down the floors etc with cool water to add to the humidity.

I have also used shading netting to shade the plants. All a hassle I know!

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japagow

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Re: Poor Cucumber and courgettes.
« Reply #5 on: July 03, 2011, 19:30 »
If its in a pot maybe you can move it to a cooler spot.

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Headgardener22

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Re: Poor Cucumber and courgettes.
« Reply #6 on: July 12, 2011, 17:52 »
I've never grown courgettes in a greenhouse, they do OK outside in most places.

I always grow cucumbers in the shadiest part of the greenhouse. Are you watering too close to the stem? I've found that cucumbers easily rot-off if the water gets to the bottom of the stem. I plant them inside a bottomless pot and water outside the pot so that the water doesn't get to the stem

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hubballi

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Re: Poor Cucumber and courgettes.
« Reply #7 on: July 15, 2011, 14:30 »
I have a yellow courgette and for the last 10 weeks I have had the same fruit the same size not getting any bigger. Also, why do other fruits develop only to rot at the tip ? Very frustrating  :mad: :mad: :mad: :mad:

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DD.

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Re: Poor Cucumber and courgettes.
« Reply #8 on: July 15, 2011, 14:35 »
Have you tried hand pollinating them?
Did it really tell you to do THAT on the packet?

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hubballi

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Re: Poor Cucumber and courgettes.
« Reply #9 on: July 27, 2011, 20:58 »
Out of about 7 plants I have had one successful courgette and that was the yellow type that stayed the same size on the plant for over 2 months. I thought they were supposed to get bigger. All my other plants have produced promising fruits only to either shrivel before they get going or go soft at the tips and rot, even without the flower. It's like they are cursed.

The cucumber again has produced nothing so far and it's season is over. Good quality compost + comfry feed + correct watering = bad results=not bothering with them next year  :mad: :(
« Last Edit: July 27, 2011, 20:59 by hubballi »

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Ice

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Re: Poor Cucumber and courgettes.
« Reply #10 on: July 27, 2011, 21:25 »
You didn't answer DD's question.  Did you hand pollinate them?  They sound as if the were not pollinated, same as the ones on mine and everyone elses that produced fruit that shrivelled.  They are not cursed, just starved of male attention. ;)  As for the courgette that stayed the same size for two months I don't believe that this is possible.  You must be mistaken, just like I said when you mentioned this before.
Cheese makes everything better.

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Aunt Sally

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Re: Poor Cucumber and courgettes.
« Reply #11 on: July 27, 2011, 22:01 »
hubballi,

I've sent you a PM to arrange a home visit from one of our members to advise you. It's in mid August.  Please answer the PM. :)

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hubballi

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Re: Poor Cucumber and courgettes.
« Reply #12 on: July 28, 2011, 07:15 »
Ok Sally, that sounds good.

I don't need to hand pollinate them. They are outside and we have plenty of bees and hover flies. I can assure you the yellow courgette was there for that time the same size.

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Ice

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Re: Poor Cucumber and courgettes.
« Reply #13 on: July 28, 2011, 09:46 »
Hubballi, courgettes that shrivel before they get growing and get soft at the tip havn't been pollinated.  You ignore any attempt to help and do what you want to do anyway.  What is the point of asking if you ignore the advice given about hand pollinating?

Photos would help to determine absolutely what the problem is.

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hubballi

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Re: Poor Cucumber and courgettes.
« Reply #14 on: July 28, 2011, 17:05 »
But they are outside so surely they don't need hand pollinating if the hover flies and bees are coming in, Or am I wrong ?



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