Fertilizing and Watering
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Subject: Daytime misting a problem with Powdery Mildew?
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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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EndlessTrail |
Fresno, CA
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I think I have powdery mildew (separate thread under pests) but I'm worried misting could be part of problem. It's so hot here (over 100 most days June-Aug.)that I have misters running every half hour from 10:30am-12:30pm for 2 minute length and then every 5 minutes from 1pm-4pm for 20 second length. Anyone think that is too much misting even for my climate? I was watering in evening sometimes but only soil (driptape). I've been watering only in morning last few days.
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7/27/2010 2:41:52 AM
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Kennytheheat |
Bristol R.I. USA
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Have you been using any antifungal products? Any seaweed?
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7/27/2010 8:38:14 AM
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EndlessTrail |
Fresno, CA
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Just Neem, milk and compost tea.
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7/27/2010 10:32:55 AM
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EndlessTrail |
Fresno, CA
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I do spray with Neptune's Harvest - the one with fish and seaweed in it but not at full strength according to the package. I usually add it at 1/4 strength to my compost tea when I spray.
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7/27/2010 2:46:40 PM
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Billium frm Massillon |
Navarre,OH
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I always water during the day with no problems. I alternate neem oil and Ortho Max disease control. Are you getting both the top and bottom of the leaves?
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7/27/2010 2:49:25 PM
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EndlessTrail |
Fresno, CA
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Yes I water top and bottom of leaves with all sprays.
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7/27/2010 4:52:58 PM
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Tad12 |
Seattle, WA
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I believe the issue is that the leaf surface is dry by nightfall to avoid excessive moisture which could encourage PM growth.
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7/27/2010 6:49:49 PM
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EndlessTrail |
Fresno, CA
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Matt DeBacco looked at pictures of my leaves and says they probably don't have PM. Great News! But I am going to pay more attention to my misting and watering schedule and products that I use. Neem is out. For misting I found out it is important to let it mist long enough that water rolls off so that any spores on the leaf are washed away. That is interesting because I was doing just the opposite this year buying very fine spray nozzles to avoid a large buildup of water on the leaves.
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7/27/2010 9:47:47 PM
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Peter |
Cornwall
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I hav'nt found any powdery mildew yet the old pumpkin leaves have just gotton weathered. We get a fare bit of sun here and I only water in the evening 5 6,o clock. Don't water in the midday as the leaves will get burn't.
Do u have well drained soil which pumpkins like and should dry the soil out more so the vines aren't bogged all the time.
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8/3/2010 5:30:35 PM
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Peter |
Cornwall
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I made compost tea this year but not sure what it's doing yet as I also use tommorite and all purpose liquid plant food for veggies.
Chicken mannure is very good high in nitrate
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8/3/2010 5:33:35 PM
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Suzy |
Sloughhouse, CA
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In Fresno in the summer you have very low humidity 15% or below. Temps. will be 90 and above. This is probably not PM.
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8/3/2010 8:19:09 PM
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Monster Grower |
Redmond, Washington; U.S.A.
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Also, watch that the fish is not added at the end of the compost tea. I use it seperately now. I heard from Tad that it can turn the tea anearobic if added at the end of the brewing cycle. I do like to use fish though. seaweed is okay to brew in the tea.
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8/7/2010 1:11:37 AM
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EndlessTrail |
Fresno, CA
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Thanks everyone for the advice. Peter, the soil here is pretty well drained - "sandy loam". You are right Suzy it turned out to not be PM after all. Monster Grower, I didn't know that about adding fish at the end of brewing cycle. I will only spray it separate now.
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8/8/2010 9:38:23 PM
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Total Posts: 13 |
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