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Old 05-26-2007, 09:51 AM
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naughty62 naughty62 is offline
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tree guys

Whats the best fungicde for rhizo. needle cast .1 completely dead 6ft. spruce , old sidewalk construction got into the roots and across the yard a12 footer with 2foot of lower branch dieback .Yes black pycnidia in the stomatas ,lab test no .blue spruce ?
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Old 05-26-2007, 12:12 PM
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heritage heritage is offline
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Originally Posted by naughty62 View Post
Whats the best fungicde for rhizo. needle cast .1 completely dead 6ft. spruce , old sidewalk construction got into the roots and across the yard a12 footer with 2foot of lower branch dieback .Yes black pycnidia in the stomatas ,lab test no .blue spruce ?
Hi Naughty,

Chlorothalonil (Daconil Weather Stik) For Rhizospharea Needlecast.

1st spray when new growth is 1.5" long. 2nd spray when new growth is 3" long.

Also limb up tree a foot or so from the ground to improve air circulation.

Pete D.
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Old 05-26-2007, 01:48 PM
teeca teeca is offline
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i second the daconil
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Old 05-26-2007, 07:06 PM
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Tscape Tscape is offline
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Banner Maxx
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  #5  
Old 05-26-2007, 08:53 PM
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heritage heritage is offline
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Banner Maxx
Tscape,

Did the Banner Maxx work for you? RN is not on that product label.


Pete D.
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  #6  
Old 05-27-2007, 08:28 AM
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Tscape Tscape is offline
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Yes, propiconazole will control needle cast.
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  #7  
Old 05-27-2007, 08:36 AM
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philk17088 philk17088 is online now
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mancozeb works well and costs waaaay less than the others.
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  #8  
Old 05-27-2007, 05:49 PM
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ampeg76 ampeg76 is offline
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mancozeb works well and costs waaaay less than the others.
i priced mancozeb one time, gallon vs gallon - it is cheaper, but the high rate usage makes it more expensive, not to mention its so messy
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Old 05-29-2007, 05:36 PM
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americanlawn americanlawn is offline
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We've been using Daconil for years, but we're also trying out Compass on Blue spruce trees. Needle cast seems to be one of those tree funguses that is difficult to control >> weather, air flow, site, etc. It's not a disease we guarantee complete control of. It's a tough one. Often two sprays just are not enough, but it makes the homeowner feel better. Hey -- how 'bout apple scab? Crabapples are all of a sudden dropping many leaves! Anthracnose too. Looks like a "disease season" rather than an insect season so far in IA.
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