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tomatoes getting overhead water- mitigation attempt

Posted by LiSuburbanGrdn7 (My Page) on
Mon, May 13, 13 at 12:19

My garden boxes are next to a ground sprinkler. I noticed some blight on them after being in the boxes two weeks. This is my attempt to mitigate. Once they get taller, ill remove the poly over the top and just keep it in the front up the side of the boxes to block the stream of water. Unfortunately I cant move the sprinkler without digging it up, which i dont want to do because i just hydroseeded my whole yard.

This post was edited by LiSuburbanGrdn7 on Mon, May 13, 13 at 12:33


Follow-Up Postings:

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RE: tomatoes getting overhead water- mitigation attempt

View from inside.

There is 2' of metal cloth around the base of the boxes as a pest fence, and the poly is zip tied to the metal cloth, leaving one side completely open for air.


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RE: tomatoes getting overhead water- mitigation attempt

I have two gardens, one in my back yard and one at a community garden. At my home garden I flood irrigate. At the community, I sprinkle over the top. I don't have any more disease issues in one garden than I do on the other. I think the problems come from soil splashing on the tomato leaves rather than the water itself. Under sprinkling, the constant water seems to wash off any splashed soils, which may be why I don't have issues with diseases under sprinkling. My climate may matter too. I live in arid Utah where humidities are low and temps can be high so plants may dry out faster than other areas would.

Kevin


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RE: tomatoes getting overhead water- mitigation attempt

Climate can make a BIG difference Kevin - foliage dries out very quickly for you. Not so for many of us. :)

Suburban - with no cross-draft you need some vent holes in the top for heat to escape as it rises. Stick a thermometer in there and you will be amazed how hot it gets.

Same principle as a greenhouse that requires roof vents.

Dave


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RE: tomatoes getting overhead water- mitigation attempt

I hav wind slits in there. And you can't see it. But the side away from the camera is open on the lower foot. The poly is simply tie wrapped to the top of the metal cloth fence.


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RE: tomatoes getting overhead water- mitigation attempt

The tomato plants look awfully leggy. Is that varietal?
Overhead irrigation was my worst enemy before I switched over to drip. I could overhead irrigate one day and the next day see the disease increase.


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RE: tomatoes getting overhead water- mitigation attempt

With the exception of the far left plant (Grape), and the one to the right of that(Early Girl) they are all Grafted Heirloom varieties. I have pruned off yellowing leaves since this picture, so they are REALLY leggy now, but they have 5 feet to grow and fill in. I wanted to prune early, and keep them trained upwards to see if the close proximity works. (they are only 2-2.5' apart stem to stem.

If they get to bushy, and grow into each other, then next year I will just do six (3 in a row down the middle of the 4'x8' box they're in now) to space them out more. I have hot/sweet peppers and two Eggplants out of the shot in the back of the boxes too.


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RE: tomatoes getting overhead water- mitigation attempt

Can you adjust the spray pattern of your sprinkler head so it doesn't spray in that direction?


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RE: tomatoes getting overhead water- mitigation attempt

Or just cap off the one head. No point in losing the plants just because of one sprinkler head. Treat the problem, not the problems it causes. Especially when treating the created problems only makes them worse.

In addition to the reduced light they are getting leggy due to the trapped heat. Anyone with experience in growing in GH or plastic tunnels can assure you you are going to regret this set-up.

Dave


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