Pests, Diseases and Other Problems
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Subject: yellow spots on leaves?
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From
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Location
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Message
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Date Posted
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LongmontPete |
Colorado
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I am getting some yellow spots on my leaves, and they don't look healthy. I transplanted into the garden a few days ago, and that's when they started to show up. It was a pretty standard transplant procedure, a little Mycorrhizae in the hole and 2 cups of blood meal in a 10 foot circle and that's it, other than water.
I just posted a few pisc of the problem in my diary, hopefully they will be up soon. Any thoughts?
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5/12/2007 12:24:05 PM
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LongmontPete |
Colorado
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just saw the other post a few posts down... mine looks a worse than that. I checked for mites last night, didn't see any. didn't get mites last year until June... pics should be up soon!
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5/12/2007 12:33:55 PM
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Tremor |
Ctpumpkin@optonline.net
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Pete, How many days were they inside before going out? Were they acclimated?
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5/12/2007 1:59:32 PM
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LongmontPete |
Colorado
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here is the pic:
http://bigpumpkins.com/Diary/DiaryViewOne.asp?eid=63168
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5/12/2007 2:15:17 PM
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LongmontPete |
Colorado
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steve, for a week before planting they were outside all day, and then in the garage at night. the weather for the prior week was cool (50s-60s), but the last few days it's been warm (mid 80's).
so definately acclimated to the outside, but definately different weather the last few days.
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5/12/2007 2:17:34 PM
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LongmontPete |
Colorado
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so, inside for 3 days after germination under the light, outside during the day for a week, and then into the garden 3 days ago.
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5/12/2007 2:19:56 PM
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Tremor |
Ctpumpkin@optonline.net
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Pete,
I had seen the image when I released it from the photo cache. I don't think it is insect or disease related. The plant looks a little weather beaten to me.
Keep an eye on the weather. Make sure they have protection from wind & direct sun when it's really warm for a while. Watch the new growth too. That main growing point is the most important thing. Lose it & the plant gets yanked. The first leaf isn't terribly importanty in the long term.
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5/12/2007 5:53:33 PM
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VTJohn |
Jericho Vermont
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Pete, I rarely have first few leaves that don't look like this. I still think it has to do with cold soil and the ability of some nutrients not being transfered. Mine always look better as the season goes on usually by early June. I will submit pics to my diary tomorrow and you will see some yellowing. Even though it has been a warmer than usual spring so far up here. John
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5/12/2007 6:38:59 PM
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BenDB |
Key West, FL
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Very common on young plants. Don't worry, they'll be fine.
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5/12/2007 7:42:34 PM
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Engel's Great Pumpkins and Carvings |
Menomonie, WI (mail@gr8pumpkin.net)
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a little calcium nitrate always takes care of the yellow spots
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5/12/2007 9:41:01 PM
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LongmontPete |
Colorado
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cool. other than that, it is a strong plant, so I am hoping for the best!
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5/13/2007 12:43:18 AM
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UnkaDan |
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Check your soil temps at the depth the roots are actually growing in,,there's the key to nutrient release. I agree on the Calcium Nitrate lite app drenched outside the root area will kick in the N early in the season b4 the organics have started working. Shannon tipped me off to that last year ;-)
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5/13/2007 6:06:24 AM
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BrianInOregon |
Eugene, OR
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When you say a little Ca-Nitrate, how much are you guys talking about per plant at the 4-5 leaf stage? And how often?
It's been very cool here(lower to mid 30's) at night and despite 1500W heaters in the hoophouses, the temps still dip down into the upper 40's by morning and my plants aren't too happy about it.
Thanks, Brian
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5/21/2007 9:10:39 PM
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Tremor |
Ctpumpkin@optonline.net
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6.25 lbs per 1000 sq ft is equal to 44 lbs of Nitrogen per acre which is enough for most situations (without seeing your soil test).
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5/22/2007 12:20:38 AM
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UnkaDan |
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Brian,, I use greenhouse grade at half the recommended dose applied as a drench outside what I figure is the root area. As the new roots get there the N kicks in and the plants green up for you,,no long term problems when the organics kick in as the soil warms...
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5/22/2007 6:17:47 AM
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BrianInOregon |
Eugene, OR
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Thank you for the info Steve and Dan. The low last night was 29 stinking degrees and it was in the low 40's when I had to open up the hoops and leave for the day.
I always get a little frustrated at this time of year as I drool over other people's plants but I can't be too hasty either. Hopefully warmer weather will be here soon!
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5/22/2007 11:41:22 AM
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Total Posts: 16 |
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