Valent Seed Protection Dair Mc Duffee Seed Treatment

Valent Seed Protection Dair Mc. Duffee Seed Treatment Specialist February 5, 2020

1913 1988 37, 000+ employees 300+ employees Pharmaceutical, ITrelated, Petrochemical, Health/Crop Science, Functional Materials Seed Protection Group established in 2006

Intego SOLO Fungicide

Intego-based Products • Intego SUITE Soybeans – 3 fungicides, insecticide – 3. 37 fl oz/cwt • Intego SUITE Cereals – 3 fungicides, insecticide – 5. 2 fl oz/cwt • Intego SOLO Fungicide for corn 4

Changing Practices Promoting Disease • Early soybean planting – Longer time in the soil – Cooler soil temperatures • Conservation tillage practices – Increases microbial activity off-season – Pathogens can be maintained on debris • Cover crops – Increases microbial activity off-season – Can act as “Green Bridge” for pathogens 5

Oomycete Resistance Overview • Soybeans – Pythium spp. In OH resistant to metalaxyl/mefenoxam – https: //agcrops. osu. edu/newsletter/corn-newsletter/seed-treatments-watermolds-and-fungi-are-essentialohio%E 2%80%99 s-poorly-drained • Corn – 4 isolates in SE IA show moderate resistance – https: //crops. extension. iastate. edu/cropnews/2013/04/nine-species-pythium-associated-corn-seedingblight-southeastern-iowa – ISCDA 2017 annual report has 6 locations with resistance – https: //s 3. wp. wsu. edu/uploads/sites/2082/2018/06/2017 ANNUALREPORT-ISCDASeedreatment. Trial. pdf • Wheat – Metalaxyl insensitive Pythium in PNW Spring Wheat – http: //smallgrains. wsu. edu/metalaxyl-resistant-pythium/ 6

Physical Characteristics Water Solubility (mg/L @ 20 -25°C) 100000 1000 10 1 Apron XL mefenoxam Allegiance metalaxyl Intego Solo ethaboxam § Water solubility is a factor in determining how products move within the plant 7

Physical Characteristics 8

Aveo EZ Nematicide

Aveo EZ Nematicide Label • Aveo EZ is made with Bacillus amyloliquifaciens PTA Strain 4838 Soybeans Corn • Pests • Soybean Cyst Nematode • Reniform Nematode • Root Knot Nematode • Pests • Dagger, Lance, Needle, Pin, Ring, Lesion, Spiral, Sting, Stubby, Stunt Nematodes • Use Rate: 0. 1 fl oz. /140 K seeds • Use Rate: 0. 1 fl oz. /80 K seeds SKU Size 4 x 1 gallon case Requirements Treated seed must be labeled with a seed bag tag 10

Aveo EZ: Key Benefits Consistent Performance Flexibility Low Use Rate Highly concentrated formulation, containing more colony forming units (cfu) per ml than the competition Optimize the ratio of nematicide to fungicide and insecticide protection in soybeans from a stand-alone product Requires minimal adjustment to treater settings

Aveo EZ Nematicide Mode of Action MBI 600 (Bacillus used in Trunemco) • Colonization – Quickly colonizes root Pre – Forms a bio-barrier that protects root • Nematode Paralysis 2 DAI Young seedlings Pre- and 2 days after incubation on Bacillus selective media 12

Aveo EZ Nematicide Mode of Action • Colonization – Quickly colonizes root Normal sinusoidal movement – Forms a bio-barrier that protects root J 2 RKN in H 2 O • Nematode Paralysis – Produces materials that cause paralysis Paralysis J 2 RKN in Aveo cell suspension, 48 hr. Source: Dr. Kathy Lawrence, Auburn University 13

Lumialza™ • Corteva corn nematicide offering 14

Bio. Nik™

What is Bio. Nik™? • Bio. Nik™ is a 25% S-ABA seed treatment formulation • S-ABA is a natural occurring plant growth regulator (classified as one of the five major plant growth regulators) – S-ABA promotes stress tolerance in plants – Controls stomatal closure and thus water relations and photosynthesis – Also affects numerous other processes including dormancy, germination, fruit set, fruit ripening, fruit coloring and abscission • Bio. Nik™ delays germination on male inbred lines to extend the pollen shedding window • Bio. Nik™ improves synchronization of flowering of male and female – “Nicking Zone” 16

Controlled Germination Delay Silk and pollen shed dynamics affect yield and quality in corn seed production Female Parent Silk Emergence Male Parent Pollen Shed (second population) Yield loss and potential genetic contamination 17

Bio. Nik™ Dose Response 18

The Bio. Nik™ Process • Inbred Characterization – A soil box assay compares each line to two reference lines More Sensitive • Dose Calibration Moderately – Either a single rate or blend is chosen Sensitive to achieve the delay needed • Treatment – At your facility, a portion of the seed is treated • Planting 200 ug/kernel 100 ug/kernel 50 ug/kernel 200 ug/kernel 100 ug/kernel 50 ug/kernel Less Sensitive Bio. Nik™ 19

The Bio. Nik™ Process • Inbred Characterization – A soil box assay compares each line to two reference lines • Dose Calibration – Either a single rate or blend is chosen to achieve the delay needed Blank Bio. Nik™ • Treatment – At your facility, a portion of the seed is treated • Planting Blank Bio. Nik™ 20

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