Re: POINSETTIA CROP 1997

[Jim Barrett <jeb@gnv.ifas.ufl.edu>]

I am like Allen- I would like to have some more details.

What are the environmental conditions inside and outside?

Where are you located?

When did symptoms occur?  

Did any of this develop after plants were shipped?  If so what were
shipping conditions?

Did you use any calcium sprays or disease control late in crop?

What are the varieties involved and what did symptoms look like on each?

Did anyone test for Botrytis in bracts?

What insecticides were used and when?

Other details?


Jim Barrett




At 10:18 PM 1/26/98 +0000, you wrote:
>I AM LOOKING FOR SOME HELP FROM ANYONE WHO CAN HELP ME.  WE LOST A GREAT
>DEAL OF OUR POINSETTIA CROP THIS PAST DECEMBER.  I HAVE LISTED BELOW
>WHAT PRODUCTS I USED AND ALSO WHERE I HAVE SENT SAMPLES.  CAN YOU HELP
>ME?
>
>OHIO STATE UNIVERISTY SAMPLED THE PLANTS THEY SAW NO PROBLEM.
>
>SCOTTS LAB SAID THE SOIL AND WATER SAMPLED WAS FINE.
>
>MICHIGAN STATE PHYTHIUM SCREEN WAS NEGITIVE.
>
>SOL. SALTS WERE OK.
>
>SCOTTS 560 CHIOR SOIL WAS USED.
>
>NO GROWTH REGULATORS USED AFTER OCTOBER 4TH-SOME PLANTS "FREEDOM" NO
>GROWTH REGULATOR WAS USED AT ALL.
>
>ADEPT WAS USED THE 1ST TIME THIS YEAR.
>
>PETER'S EXCELL FERT. WAS USED.
>
>CUTTINGS FROM FISHERS AND ECKE'S (URC).
>
>ROOT SYSTEM MEDIUM TO EXCELLENT.
>
>I HAVE BEEN GROWING POINSETTIAS SINCE 1966, AND HAVE NEVER HAD A PROBLEM
>LIKE THIS.  ANY HELP WOULD BE APPRECIATED.  SEE ATTACHED PICTURES.
>DAVID PLUMMER, 
>PLUMMER GARDENS, INC.
>
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Jim Barrett				Phone 352-392-7931
P.O. Box 110670				Fax   352-392-3870
Environmental Horticulture Dept.	http://hort.ifas.ufl.edu
1545 Fifield Hall			email jeb@gnv.ifas.ufl.edu
University of Florida
Gainesville, FL  32611-0670