Daily EARLY BLIGHT Forecast Information From FAST: Central PA, 2007
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For Tomatoes and Potatoes ##############################################
========================= # * = Standard sites through Sep 23 #
# ** = EXPERIMENTAL SITES through Sep 23 #
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A. How favorable is daily weather for EARLY BLIGHT development? Values presented
in calendar format indicate favorability of weather for EARLY BLIGHT development.
Key: 0-4 = Conditions not very favorable for EARLY BLIGHT (0 = least favorable).
5-28 = Conditions favorable enough to warrant fungicide (28 = most favorable).
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EXPERIMENTAL SITE ** Standard Site * Standard Site *
Hunt.Co:Maddensville Centre: Rock Springs Lycoming: Jer. Shore
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Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
== == == == == == == == == == == == == == == == == == == == ==
June ==================== ==================== ====================
01-02: 0 0 0 1 0 0
03-09: 0 0 1 2 1 2 1 0 1 2 2 2 1 0 0 0 1 1 2 2 0
10-16: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
17-23: 1 1 1 2 1 2 2 0 0 0 0 0 0 0 0 0 1 1 0 0 0
24-30: 2 1 2 0 0 1 2 0 0 0 0 0 0 1W 0 0 0 0W 0 0 0
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July ==================== ==================== ====================
01-07: 2 3 4 3 2 1W 1 2 3 4 2 1 0 0 0 0 0 0 0 0 0
08-14: 2 2 3 4 5# 4 2 0 1 1 0 0 0 0 0 0 0 0 0 0 0
15-21: 0 0 0 0 0 0 0 0 0 0 0 0 0W 0 0 0 0 0 0 0W 0
22-28: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
29-31: 1 3 4 1 3 4 2 5# 4
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August ==================== ==================== ====================
01-04: 4 6# 6# 6# 5# 4 0 0 5# 4 3 2
05-11: 4 4 4 4 4 6# 6# 0 0 1 3 5# 8#11# 1 0 1 3 2 5# 7#
12-18: 6# 6# 6# 6# 6# 4 2 11#11#11# 9# 7# 6# 3 10#10#11# 8# 5# 2 0
19-25: 0 0 0 0 0 1 3 0 0 0 0 0 1 1 0 0 0 0 0 0 2
26-31: 5# 6# 7# 5# 6# 5# 3 4 5# 5# 6# 6# 3T 5# 6# 7# 8# 7#
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Sept. ==================== ==================== ====================
01: 2 4 5#
02-08: 0 0 0 0 0 0 0 3 2 0 0 0 0 0 4 3 2 1 1 2 3
09-15: 0 0 0 0 1 2 3 0 0 0 0 0 0 2T 4 5# 7# 8# 7# 6# 5#
16-22: 2 1 0 0 0 0 0 2 1 1 1 1 1 1 3 1 1 1 1 1 1
23-29: 0 - - - - - - 0 - - - - - - 1 - - - - - -
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Key: # = FAST indicates early blight protection most important these days.
Values based on measured Temperature, Relative Humidity, Wetness, & Rain.
e = Early = FAST indicates that recent weather was favorable for early
blight development but the initial threshold (CD35) was not reached yet.
W = Wet+Temperature based threshold (CD35) = 35 Cumulative Severity Values
for the season. If inoculum is present, symptoms are expected soon.
T = Tomcast portion of TomFAST indicates early blight protection most
important these days. Values based on measured Temperature & Wetness.
* STANDARD SITE: Disease forecast developed from quality on-site
calibrated environmental measurements.
** EXPERIMENTAL SITE: Disease forecast developed from experimental data;
calibration is in progress. Forecast is for experimental use only.
Compare results for Experimental sites with results from nearby
Standard sites before considering information from an Experimental site.
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developed by Dr. Alan A. MacNab, Professor, Plant Pathology
Penn State College of Agricultural Sciences
211 Buckhout Lab, University Park, PA 16802
Updated: Sep 24, 2007; EMH
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Where trade names are used, no discrimination is intended
and no endorsement by the Cooperative Extension Service is implied.
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