Quadrant Demonstration Report

Demonstrate and evaluate the efficacy of ADAMA’s Broadleaf weed post-emergent herbicide, Quadrant, compared to existing chemistry in wheat.

Hines Hill, WA, 2019

EXECUTIVE SUMMARY

Ademonstration site was sown on the 16th of May 2019, to demonstrateto the extended David Grays Aglink network the efficacy of ADAMA’spost-emergent broadleaf weed herbicide Quadrant.

Break ofseason was on the 12th of June 2019, with treatments applied on the 22nd of July, radish at4-6 leaf stage. There was no significant difference between treatments(P > 0.05).

All post-emergenttreatments achieved adequate brownout of radish. Quadrant exhibited excellentbrownout control (80%) until the last assessment at 57 DAT, in comparison tostandard post-emergent herbicides Velocity, Howitzer and Talinor. Whichachieved brownouts of 94%, 98% and 90% respectively.

Phytotoxicity incidence for Quadrant wasapproximately 40% leaf area, however; effects were transient and subsided by 57DAT, with no recorded crop effect.

Offers a convenient opportunity for producers,through a ready to spray formula, aiding resistant management throughresponsible MOA use.

INTRODUCTION

Objective

1. To evaluate and demonstrate the efficacy of Quadrant against otherstandard post-emergent broadleaf herbicides.

METHODOLOGY

Data Analysis

All data analysis in this report was conducted using Microsoft Excel. Simple means, analysis of variance was used to determine statistical significance using the least significant difference method with a 95% confidence interval.

RESULTS

Figure 1. Percentage brownout observations at 12 and 20 days after treatment (DAT) application.

7, 14 and 57 DAT indicated brownout percentages of 48%, 78% and 80%respectively.

Statistical analysis using a standard ANOVA, indicated there was significant difference between treatments ( P< 0.001).

Figure 2. Phytotoxicity ratings, percentage leaf area incidence, 14 DAT.

Figure 3. Yield data, harvested on the 11th of November 2019, expressed as kg/ha. The
mean or average was 468kg/ha. Return on investment (ROI) as line, expressed as $/ha.

DISCUSSION/CONCLUSION

All post-emergent treatments achieved adequate brownoutof Wild radish. Quadrant exhibited excellent brownout control (80%) until thelast assessment at 57 DAT, in comparison to standard post-emergent herbicidesVelocity, Howitzer and Talinor. Which achieved brownouts of 94%, 98% and 90%respectively.

Phytotoxicity incidence was approximately 40% leafarea, however; effects were transient and subsided by 57 DAT.

The yield components of this trial may not beconsidered particularly relevant, as rain was a major limiting factor at thissite. The top yielding treatments were Condor, Flight and Talinor + LVE, withyields of 667kg/ha, 639kg/ha and 611kg/ha respectively.

Quadrant yielded 338kg/ha, this was 212kg/ha lessthan the control (550kg/ha) and 130kg/ha less than the mean yield. As this wasa demonstration, two replicates along with lower than average rainfall meansthere is reasonable probability that the yield results are an error.

Return on investment (ROI) was highest in treatmentswith a costing of $10 or below. For example, Condor and Flight, demonstratingthe efficacy of cheaper products in dry years.

An effective post-emergent radish control, Quadrantoffers a convenient opportunity for producers, through a ready to sprayformula.