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canal winchester ohio

I've noticed something in my patch & thought I would float it out there for others. The new addition to my pumpkin patch has a lower organic matter than my older part ( 18% -vs- 5%). Both patches experience leaf wilt but the patch with a higher organic matter gets leaf burn. The lower organic % patch wilts but at the end of the day there is no leaf burn.
So I'm wondering if others out there who get leaf burn have a high organic matter in their soil & in contrast do those who get wilted leaves but no leaf burn have low organic %.
Now I haven't used fresh manure in 4 years so that is ruled out.

7/5/2010 4:08:50 PM

Williamsburg,KY

The leaves on the vines I buried with my own compost seem to get leaf burn..but not really sure if that was the cause.

7/5/2010 4:20:59 PM

canal winchester ohio

I can think of nothing else, everything in my patchs is the same ( light,water,fert,ect.) execpt one has a higher organic matter. I'm misting like crazy this week, I know in Kentucky your looking at the same highs I am this week in Central Ohio.

7/5/2010 4:41:49 PM

i dont think high organic matter has anything to do with leaf wilt or burn i might have higher than most. i know its the vines growing faster than roots that flag first and burn -how are plants growing compared to others patch verse patch

7/5/2010 4:55:15 PM

San Diego

it's the plant, nothing else in my opinion. Even if it is the same seed, it doesn't matter. One plant does better than another in heat tolerance and leaf burn.

In my patch, it was extended, so the new patch has low organic matter, the plant there burns very easy. My old patch with higher organic matter is not burning at all. Just the way it is with these things.

7/5/2010 4:58:35 PM

canal winchester ohio

Here's the odd part Don, the fastest growing plant is your 1207 & it's wilting but not burning. My 1375 Liggett is a little slower growing plant but the leaves are getting burnt.
But on the plus side hows that for a good cross, 1207 x 1375 & the reverse cross as well.

7/5/2010 5:11:27 PM

Western NY

12 plants here, 2 of them can't take the heat. those 2 are planted next to each other. i'll test the soil there to compare this fall. some of the others seem almost fireproof this year.

7/5/2010 5:31:48 PM

France

In my patches, it's exactly the opposite.On the lower organic spot , the plant has plenty of leaf burn. However on the high organic spot, plants has very few leaf burn.

7/5/2010 6:52:16 PM

Litchfield N. H. 03052

Here is what I notice, my former farm they are growing 100 + or - acres, low organic matter , leaf wilting not burning. My patch, higher organic matter, leaf wilting and burning. Why ??

7/5/2010 7:00:17 PM

Litchfield N. H. 03052

Thats 100 acres of squash and pumpkins.

7/5/2010 7:01:16 PM

Las Cruces NM

Unless youhave clones of the sam plant in each patch, I don't think you can make any assessment on organic mater -- that is a variable! I have noticed quite a bit a variance of plants within the same patch (and year to year but too many variables there). I believe it is the plant.

I fear I wount have orange this year (green is hopefull but will have to see). I have misters and they don't wilt even at 105+ (june average was 100) but I am having a problem with tender shoots and blossems drying up = terminating. So andy (or anyone else) if you think you have fire proof plants, I'm in the place to test it!

7/5/2010 7:04:17 PM

Buffalo, New York

what % is considered high organic material?

My soil test read about 17.9 % .....

7/5/2010 7:54:22 PM

Glosta

My patch has 18.5% OM, only plant that gets leaf burn is 1385 Jutras clone.

7/5/2010 7:56:12 PM

36% here jeremy. interesting topic for sure

7/5/2010 7:58:01 PM

Clayton, Ohio, USA

My gut tells me that lack of oxygen to the roots - water logged compacted fine soil with a high water table - might have something to do with this. I suspect that a sandy, fast draining soil would not produce these problems. What kind of soil are you growing in Paul?

7/5/2010 9:04:50 PM

canal winchester ohio

The older patch that is burning the leaves is loamy,fast draining,non-compacting soil. You can walk all season on this patch & still bend over & shove your hand in the soil like a shovel. The newer patch that is not burning the leaves is only in it's second season so it's not as loose as the older patch. It's not clay, but it's not at the loamy stage yet it needs some more compost.

7/5/2010 10:03:52 PM

Connecticut

My thoughts are is it the Organic Matter or maybe increase in something else related to the organic matter such as nitrogen?

Of the few people here growing squash; do you notice that the squash plants seem to be ‘resistant’ to leaf burn?

Personally, I am not sure what is going on with the leaf burn issue, it does seem that overhead watering for short times over the course of the day does help decrease the severity in my patch at least.

7/5/2010 10:41:08 PM

Paradise Mountain, New York

My one patch is 17.8 and the other is 12.9 I have no leaves burning. It's been in the mid to high 90's here. I haven't misted my plants at all this year. I think this has helped with healthy leaves.

7/5/2010 10:47:09 PM

El Paso TX.

Huffs - Is the soil and the plant leaves in the older patch a slightly darker color than that in the newer patch ?? -- figure a darker soil or darker green leaf will get a bit hotter in the same outside temp. which might also be contributing to the burn vs. wilt

7/5/2010 10:57:44 PM

Tinykinville

okay you can not take one variable and blame that on whats happening, as others have mentioned yes some plants versus others take heat better another thing to consider is ph that affects your nutrient up take, next is soil moisture, next is agressiveness and growth of plant and leaf size. and also temps and humidity. never try to trace something down to one thing until you have a good reason to eliminate all the others.

7/6/2010 4:55:16 AM

Deer Park WA

I think Dr. Young hit it on the head, new growth that develops faster than the roots has not had a chace to toughen up and is therefore more suseptable to burning on hot sunny days. We try and cover the main vine tip for this very reason, they have fried off in 90+ days. Our crappy soil is just about pure OM so I dont think that is a factor.

7/6/2010 6:28:48 PM

Owensboro, Ky.

Huff's...is it possible that the fast draining soil, is the cause? Water applied leaves the root zone too quickly for the plant to absorbe enough? Interesting topic...I agree!! Peace, Wayne

7/7/2010 1:16:26 AM