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Old 05-10-2013, 12:06 PM   #1
wfowlks
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Default What is wrong with the leaf and should I be worried?

I noticed there was some yellowing and it looks like something is eating the leaf, of that is the case I'll need to spray that stuff. I am liking for help, the plant in question is centennial. This has not happened to my cascade
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This picture is a little zoomed out

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Old 05-10-2013, 12:30 PM   #2
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I'm no botanist, but my hops have the random mutant leaf as well. I never bother with any sprays and the plants are very strong and healthy. They seem to be quite resilient! Although my centennials are definitely the slowest and most troublesome of the 3 varieties...

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Old 05-10-2013, 01:35 PM   #3
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That looks like iron deficiency, applying any fertilizer with iron in it will fix that.

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Old 05-10-2013, 04:12 PM   #4
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Originally Posted by el_pollo_diablo View Post
I'm no botanist, but my hops have the random mutant leaf as well. I never bother with any sprays and the plants are very strong and healthy. They seem to be quite resilient! Although my centennials are definitely the slowest and most troublesome of the 3 varieties...
Yeah the Cascade that I have are taking off and grow at least 2 inches per day, but I only have 2 vines, I have like 12 shoots for the centennial but they are all really short

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That looks like iron deficiency, applying any fertilizer with iron in it will fix that.
Thanks a bunch, I'll stop by Lowes on my way home
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Old 05-10-2013, 07:01 PM   #5
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I dunno...that soil *looks* pretty rich. Sometimes leaves can look like that from too much inputs, too. I might let it ride for a bit, especially if you've already added a lot of inputs this year (compost, manure, and/or ferts) and give them another shot of inputs when the plants get bigger.

Don't worry about some insect damage to a few leaves.

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Old 05-10-2013, 10:34 PM   #6
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cram - you cannot identify nutrient deficiencies based on how the soil "looks". The plant is displaying classic iron deficiency symptoms (yellowing on upper growth, as iron is not very mobile in the plant), and an excess of iron does not inhibit the uptake of other nutrients.

wfowlks - Post some updated pics in a few weeks for future readers if possible.

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Old 05-10-2013, 10:38 PM   #7
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The soil base is in a potter, it was a mix of the knock off brand of Miracle Gro potting soil and organic dehydrated manure and compost, as well as sand. I went to Lowes today, and the fertilizer that had the most Iron in it was the Miracle Gro All Plant food with .19%. To me that doesn't seem like a lot, but it was the highest with the other fertilizers not listing iron or having less than .05%

I will keep posting pictures every week or so as they start to develop, I will say that my Cascade plants grew 2 inches today, while I was at work. I almost think you could sit there and watch it grow

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Old 05-11-2013, 02:18 PM   #8
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http://m.homedepot.com/p/Miracle-Gro-1-5-lb-Tomato-Food-2000421/100077406

I had some brown leaves and yellowing leaves. I used this fertilizer a week and a half ago (.10 iron) and trimmed the lowest leaves, and no more leaves have turned brown and everything looks nice and green. The bines are really growing strong too. I noticed a very fine white substance sandwiched between two leaves. It felt like a spider web. I don't know if it was mildew or spider mites but i sprayed neem oil. When i sprayed, about 10 little bugs flew out of the leaves and mulch. As soon as i sprayed, it proceeded to rain for the last 4 days. I've been checking for discoloring and bugs every day and everything looks great. If the rain ever stops, i'll use that fertilizer again and see how they turn out.
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Old 05-11-2013, 03:19 PM   #9
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I'm still under the impression that you likely would not have iron deficiencies this early into the growing season if you started out with new soil and manure/compost. Sure, you cannot identify nutrient by looking but it's fair to say that you can see in the picture plenty of partially decomposed organic matter and that's a far cry from "plain" dirt/sand.

Consider going light on the nutrients but adding them more often--the weekly/weakly adage is sound advice. There will be a lot more need for inputs when the plant is 15' tall and shooting side arms than there is with a 2' bine. Look at some other folks pictures of bines coming out of a (again, not sound science) poorer *looking* growing medium with dark green leaves.

If you were to dump a lot of hot manure on a young plant, the leaves would take on a similar yellowing. Given that you have added manure and new soil this year (which has nutrients added), my point is that you're likely not seeing iron deficiencies already since the plant already has some energy stored in the rhizome and it's relatively small and, therefore, does not require a big nutrient load But, of course, the is just my two cents so take them for what they're worth. I don't want to turn this into a pissing contest, just wanted to throw out an alternative position for consideration. Either way, good luck and happy growing this season.

@ wfolks...blood meal is a good source of iron, and might be less likely to burn plants. Whatever you use, may I suggest halving the recommended dosing and adding it twice as often.

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Old 05-11-2013, 08:25 PM   #10
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So, I noticed today that some of the leaves had started to tear, but last night we had a really really big thunderstorm that dropped a ton of rain. In my watering bucket it was about an inch and a half of rain. It looked like one of those movie rainfalls where it was an absolute downpour so I believe it. And were supposed to get similar storms today.

I got some neem oil to cover that base, just in case there were any bugs. I think both cram and theredben are right, I did some reading on iron deficiency, and it can be caused by to much phosphorus, which would be from the manure and the Miracle Gro, because the phosphorus inhibits the iron uptake.

So i will probably just stick to watering for now, and Miracle gro at half the dosage for a week or 2 and I will be posting pictures

Thanks so much for all the help guys!

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