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Leaves turning yellow or light green. What is this?

Posted by Asiya Zone 9 (My Page) on
Fri, Jul 6, 12 at 16:00

The leaves are turning yellowish or light green and there are dark green spots all over them. It's spreading from the tips of new leaves towards the vines. Is it a disease or just a deficiency?

Pictures:
http://farm8.staticflickr.com/7255/7516413606_e56b747b85_b.jpg
http://farm9.staticflickr.com/8161/7516413698_ec2d83e618_b.jpg


Follow-Up Postings:

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RE: Leaves turning yellow or light green. What is this?

what is is.. cuke?? squash?? melon???

and could you be a bit more specific where you are???

ken


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RE: Leaves turning yellow or light green. What is this?

It's butternut squash and spaghetti squash
Southern California


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RE: Leaves turning yellow or light green. What is this?

The first image shows something I've seen locally the past two years. Even though the leaves were that bright yellow, the plants were productive. At this time, I still don't know what it is.


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RE: Leaves turning yellow or light green. What is this?

Your pics:


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RE: Leaves turning yellow or light green. What is this?

my thoughts are iron or manganese defiency. looks like the discoloring is going from the top down and you can still see the veins which is indicating a nutrient defiency.


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RE: Leaves turning yellow or light green. What is this?

It does have the tell-tale signs of an iron deficiency, except for the blotchy yellow areas. That is definitely not symptomatic of an iron deficiency.


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RE: Leaves turning yellow or light green. What is this?

theres only three possible causes for this. low light, excessive moisture or iron and manganese defiency. im taking that there is plenty of light and the green spots are more than likely that it has not lost its pigmentation in those areas.

ive provided a link that may help you further. this is just my opinion.

Here is a link that might be useful: cucurbit leaf disorders


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RE: Leaves turning yellow or light green. What is this?

Thanks for the link. But nothing there matches OP's & my leaves.

Not manganese or iron deficiency. Not herbicide. Futher, mine get plenty of sun, light & water.

Anyone else with a theory?


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RE: Leaves turning yellow or light green. What is this?

I added some supplements, but I suppose it could be over watering (there is a leak near my garden).


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RE: Leaves turning yellow or light green. What is this?

Virus?


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RE: Leaves turning yellow or light green. What is this?

Doubt it's virus because the plants are just as productive as all green ones.


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RE: Leaves turning yellow or light green. What is this?

she mentioned leak, too much water keeps plants from uptaking nutrients no matter how much nutrients are added.


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RE: Leaves turning yellow or light green. What is this?

  • Posted by Asiya Zone 9 (My Page) on
    Wed, Jul 11, 12 at 23:30

Yes, the plants completely white now. The green spot remained.


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RE: Leaves turning yellow or light green. What is this?

i had squash plants one time and they looked like tiger spots gree spots turned yellow and then white. i sprayed the leaves with a fish and seaweed emulsion. cleared it up, prob was to high ph levels. just my experience.


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