BlissfulGarden's Journal: Chemicals

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Member: BlissfulGarden
Journal: Default
Category: Current Plants in Our Gardens - Descriptions and Photos: Plant Files - Daylilies - Cultivars growing in my Louisiana garden: Vendor and Info Links
Status: List

Initial Notes:

In 2002, Dave Talbott has passed along an outline of his spray program for his commercial garden:
We are back on a weekly spray program now that the weather is moderating. High 20's,low 30's and upper 40's are not conducive to pustule production and we only spray bi-weekly during the winter months. This is my schedule which has kept me asymptomatic for two years. On a weekly basis I spray alternately with:
Chlorothalonil (Daconil Ultrex)
Triadimefon (Strike 50 or Bayleton)
Mancozeb (Dithane or Fore).
I spray plants to run-off and use a spreader sticker. Several times a season I will substitute Azoxystrobin (Heritage) for Triadimefon. We dip each plant in mancozeb and let it dry before shipment. We know the precise dosage to use with this material to kill spores. We do not know with Clorox.

Zerotol was recommended several places by DGers to kill all pathogens on contact when dipped or sprayed with complete coverage. It is supposed to help with crown rot and rust. However, USDA studies have shown it requires a much larger dose than recommended, with more frequent treatments, to achieve any significant positive results with the product. Here's a link to the research: http://www.ars.usda.gov/research/publications/publications.h...

I believe PCNB/Terraclor would be an effective treatment for Crown Rot.

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