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  • A grower case study — Field Nth West NSW Brian Baird Consultant

pgDNA Abundance per Treatment

The below 5 graphs show the level of DNA in picograms across the 3 years of the trial. The area under the curve during the growing season is effectively a measure of "exposure" to the pathogen, and in turn your risk of the disease infecting the crop: Treatments 1-5

Change from 2 key Sample dates- SD2 to SD4

Both Sample Date are after the crop so an apples to apples comparison. (like for like) SD4 is the first true measureable treatment effect Is a measure of how much risk the crop has face LT 1 SD2....SD4

Comparative Analysis
All Sero-X treatments showed reduced Verticillium dahliae pgDNA levels compared to untreated control
Effectiveness
Sero-X reduced exposure to the risk of Verticillium wilt by as much as 97% in season.

In the graphs below, we have highlighted and compared the area under the curve during the growing season for the results of the treatments and plotted an expected response based on what happened in the untreated. The areas under the curve represent a cumulative pgDNA per gram of soil, reflecting the risk of exposure to the disease. Every day your crop spends under this curve is a risk. How much risk you want to expose it to is up to you!

Gold Medal - Applications at the Label Rate

Application Rate- /Ha In season: 2 × 2L Defoliation: 2L Quantitative Results pgDNA/g soil Reduction 319.69 In-season reduction in exposure 62% Label rate for Tech review

Joint Silver Medal - Application at Half of the Label rate

Application Rate- /Ha In season: 2 × 1L Defoliation: 1L Quantitative Results pgDNA/g soil Reduction 274 In-season reduction in exposure 42% HALF Label rate Sero-X tr

Joint Silver Medal - Applications at Lowest Rate

Application Rate- /Ha In season: 2 × 500mL Defoliation: 1L Quantitative Results pgDNA/g soil Reduction 263 Peak Risk Mitigation 39% Low Label rate Sero-X tr

Bronze medal - Defoliation application only

Application Rate- /Ha In season: 0 Defoliation: 2L Quantitative Results pgDNA/g soil Reduction 118 Peak Risk Mitigation 21% DEFOL ONLY Label rate Sero-X tr

Wooden Spoon - Untreated control

Application Rate- /Ha In season: 0 Defoliation: 0 Quantitative Results pgDNA/g soil Increase 74.98 Peak Risk Mitigation 0

A grower case study — Field Nth West NSW Brian Baird Consultant
1980s - Contour Bank Development of contour bank design
1990 - Vert identified as a problem with minimal success with previous management options.
2018 - Wheat crop: It has a respectable yield with minimal water.
2019 - Fallow enforced due to drought.
1
20/21: Cotton Crop
Cotton yield in Field Y below farm average due to Vert.
2
21/22 Cotton 1st Season using Sero-X
Field Y Maintained average yield despite Vert Increase
3
22/23 Cotton - 2nd Season using Sero-X
Significant decline in Vert severity
4
23/24 Cotton - 3rd Season using Sero-X
Continued yield improvement. Above farm average
Back to back 4 seasons
Agronomist Brian Baird
"G'day Kerry Interesting case study at the XXXX This is 3 years back to back.
The first crop after the drought in this area of the field was decimated by vert. Picked less than half the other end of the field from 6 bales plus to 3 bales.
Last year the first with serox there wasn't much difference This year it's hard to find vert affected plants" - Brian Baird Agronomist
UPDATE: By late Feb early march we could see some affected plants but at this not yields impacting
There is obviously some activity on mites. Especially when you are able to encourage thrips to do their thing as well. Personally, I don't think we all know what we have re SeroX.