Sequential Fungicide Program in Corn
Protect Yield Potential During the Critical Growth Phases of Corn
Phase I
Establishment
Phase II
Rapid Vegetative Growth
Phase III
Pollination & Grain Fill
Laying the Foundation
Building the Factory
Uniform emergence
All leaves developed
Operating the Factory
for Efficiency
Early season vigor
Root system maximized
Managing stress
Maximizing photosynthesis
Root development
Yield Component Determined:
Plants/Acre
Seed
Emergence
V2
Maintaining stalk strength
Yield Component Determined:
Rows/Ear: @ V5
Kernels/Row: @ V10–12
V4
V6
V8
V12
V16
V18
Yield Component Determined:
Weight/Kernel
VT
R1
Yield = Plants/Acre x Ears/Plant x Kernels/Ear x Weight/Kernel
Kernels/Ear = Kernels/Row x Rows/Ear
Corn Fungicide Solution Guide
R2
R4
R6
Priaxor® Fungicide Pre-Tassel Application in Corn
n
Early season disease control
n
Increases root growth, photosynthesis and leaf health
n
Improves stress tolerance
Labeled Crops
n Corn—all types
Rates and Recommendations
Increased Drought Tolerance from Priaxor Fungicide
Drought Stress Symptology
(% of untreated)
Benefits of Priaxor Fungicide Pre-Tassel
100
83
80
68
60
47
40
20
0
Aproach®
Stratego YLD
Priaxor fungicide
BASF replicated greenhouse trial, 2013. Priaxor fungicide (4 fl oz/A), Stratego YLD (2
fl oz/A), Aproach (3 fl oz/A). Foliar applications made to V3-V4 stage corn and drought
was induced. Measurements made 6 days after application
Use Rate: 4 fl oz/A
Maximum Applications: 2
Enhanced Root Growth from Priaxor Fungicide
Diseases Controlled
nEarly season disease control (eg., anthracnose)
and additional Plant Health benefits
General Guidelines
nDo not include adjuvants after the V8 stage and
before the VT stage of corn growth*
*See modified label for adjustments to this statement.
Untreated
Enhanced Photosynthesis with Priaxor Fungicide
Fastest Leaf Disc Float Time Equates to Greater
Net Photosynthesis
28.2
minutes
13.7
minutes
17.9
minutes
4.2
minutes
Priaxor fungicide
Fortix®
Quilt Xcel®
Stratego® YLD
BASF replicated corn leaf disc assay trial. 2013. Leaf discs float, normally. When the air
spaces are infiltrated with solution the overall density of the leaf disc increases and they
sink. The infiltration solution includes sodium bicarbonate, which serves as the carbon
source for photosynthesis. As photosynthesis proceeds oxygen is released into the
interior of the leaf which causes discs to rise. The rate that the discs rise is an indirect
measurement of the net rate of photosynthesis.
Priaxor fungicide
Untreated
Priaxor fungicide
BASF sponsored replicated trial, Murray State University, Murray, KY 2013.
V5 Application. Priaxor fungicide applied at 4 fl oz/A.
Headline AMP® Fungicide Tassel Application in Corn
Benefits of Headline AMP Fungicide
n
Delivers the most yield at tassel
Best-In-Class Preventative and Post-Infection
Disease Control–Gray Leaf Spot
Best-in-class preventative and post-infection
disease control
n
n
Improves stalk strength
Labeled Crops
n Corn—all types
Rates and Recommendations
Use Rate: 10 fl oz/A
Maximum Applications: 4
Diseases Controlled
nLate season disease control (eg., gray leaf spot,
northern corn leaf blight, common and southern
rusts, eyespot) and additional Plant Health benefits (growth efficiency and stress tolerance)
Untreated
Headline AMP fungicide
BASF sponsored replicated research trial, Ozora, MO 2013. Headline AMP fungicide
(10 fl oz/A) applied at R1.
Extended Grain Fill with Headline AMP Fungicide
Disease free plants stay green longer, resulting in more energy
available for grain fill, and lowers lodging potential.
General Guidelines
nDo not include adjuvants after the V8 stage and prior to the VT stage of growth
Untreated
Headline AMP fungicide
BASF sponsored replicated research trial, Deerfield, MI 2013. Headline AMP fungicide
(10 fl oz/A) applied at R1. Photos taken Oct. 4.
Ground & Aerial Application
Adjuvant Recommendations
Adjuvant Restricted
Adjuvant Flexible
An adjuvant may be used with
Priaxor® and Headline AMP®
fungicides prior to the V8
stage and after corn reaches
the VT stage.*
Adjuvant Flexible
Headline AMP
fungicide
10 fl oz/A
Priaxor fungicide
4 fl oz/A
A compatibility agent, another
fungicide, or an insecticide
may be included in the tank
mix, if needed, and labeled for
use on corn.
Seed
Emergence
V2
V4
V6
V8
V12 V16
V18
VT
R1
R2
R4
R6
*See modified label for adjustments to this statement.
Sequential Fungicide Program–Yield Protection
During Multiple Growth Phases
Application Recommendations
nPriaxor fungicide
nGPA:
4 fl oz/A pre-tassel
Ground: ≥ 10 GPA
– Timing: V5-V18
Aerial: ≥ 2 GPA
n Headline AMP fungicide
10 fl oz/A – Timing: VT-R2
Yield Results from Priaxor Fungicide and Headline
AMP Fungicide in Corn
Untreated
On-farm commercial application. Belpre, KS, 2013.
Priaxor fungicide fb
Headline AMP fungicide
Yield (bu/A)
195
190.7
190
185.5
185
177.9
180
+12.8 bu/A
193.8
+15.9 bu/A
+7.6 bu/A
175
170
Untreated
Priaxor
fungicide
V5-V8
Headline AMP
fungicide R1
Priaxor
fungicide
V5-V8 fb
Headline AMP
fungicide R1
2010, 2012-2013 small plot replicated trials, BASF locations and BASF partially or fully
sponsored University and Consultant locations, n=19. Locations: IA (2), IL (4), IN (2), KY,
MI, ND, NE (2), SD, TN (2), TX, WI (2).
Always read and follow label directions.
Headline AMP, Priaxor and Xemium are registered trademarks of BASF. Aproach is a registered trademark of DuPont.
Fortix is a registered trademark of Cheminova. Stratego is a registered trademark of Bayer.
Quilt Xcel is a registered trademark of Syngenta Group Company.
©2014 BASF Corporation. All Rights Reserved. APN# 1402013 Headline AMP-Priaxor-Corn