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Use of Insecticide-Treated Soybean Seed by SCC-33 OVTs

This presentation outline summarizes the survey findings on Insecticide-Treated Soybean (ITS) seed usage in SCC-33 OVTs and selected seed companies, including insights on policy changes, safety precautions, and research outcomes in different regions. The discussion covers growers' practices and attitudes towards ITS and the types of treatments utilized by seed companies.

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Use of Insecticide-Treated Soybean Seed by SCC-33 OVTs

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  1. Use of Insecticide-Treated Soybean Seed by SCC-33 OVTs Don Dombek University of Arkansas Division of Agriculture

  2. Presentation Outline • Survey of SCC-33 OVTs • Survey of Selected Seed Companies • Recent Research on Insecticide-Treated Seed • Questions and Discussion

  3. Survey of SCC-33 OVTs • Surveyed 10 programs. • 8 responded • 11 questions

  4. Do you allow companies to enter insecticide-treated seed? GA - No TN - No NC - Yes MS - No MO - Yes KY - Yes AR - No AL - Yes

  5. If not, why? GA - Not used by seed companies TN - Not common on commercial seed MS - Want same treatments on all entries AR – No supporting research, not used by most growers

  6. If you don’t allow the entry of ITS, do you treat seed when received? GA - No TN - No MS - No AR – No

  7. Has your policy recently changed? If so, why? GA – No. TN – No, but probably will. NC - NA (No?). MS - No, but probably will. MO - NA (No?). KY - Yes, to test RR2 and LL varieties in 2009. AR - No, but probably will. AL – Yes, started allowing ITS in 2009.

  8. If you allow companies to enter ITS, do you require MSDSs? GA - No, maintain notebook with all MSDSs. TN - No, look them up. NC - No, already have them. MS - Yes. MO - Yes. KY - No, but all treatments must be listed. AR - No, but all treatments must be listed. AL - Yes.

  9. If you pack ITS, what safety precautions do you use? GA – Respirators, glasses, shields or Tyvek suits. TN – Respirators and gloves. NC – Respirator, gloves, lab coat, and ventilated room. MS – Rubber gloves and good ventilation. MO – Respirator, gloves and glasses. KY – Gloves, mask, large exhaust fans. AR – Long sleeves, gloves, masks, goggles. AL – Gloves, mask and other as required.

  10. What type of seed packing equipment do you use? GA - Seed counters. TN - Seed counters and volumetric metering machines. NC - Old Mill seed counter. MS - Old Mill seed counter then by volume. MO - vibrating bowl counter then by volume. KY - 100-seed-count board then volumetric AR – 100-count then Speed Dee (volumetric) AL – Seedboro Count-A-Pak seed counter.

  11. Do most growers in your area use ITS? GA – Crop dependent. TN – No. NC – No. MS – Not sure but use is increasing. MO – Not sure but not a majority. KY – Probably not but available as an option. AR – Estimated 10% in 2008 and 20% in 2009. AL – No but increasingly as “insurance” for expensive seed.

  12. Has research been conducted in your area to determine if ITS is cost effective? GA – Yes. TN – Yes, with variable results. NC – Not aware of any. MS – Yes, by seed companies. MO – Probably but don’t know. KY – Yes, 5-year study showed no significant yield increase. AR - Yes. AL – Yes, in 2008 but was inconclusive.

  13. In 2010 will you allow entries with ITS if companies won’t enter them unless you do? GA – Yes (previously didn’t allow ITS). TN – Probably (previously didn’t allow ITS). NC – Yes (previously allowed ITS). MS – Yes (previously didn’t allow ITS). MO – Yes (previously allowed ITS). KY – Yes (previously allowed ITS). AR – Probably (previously didn’t allow ITS). AL – Yes (previously allowed ITS).

  14. Survey of Selected Seed Companies • Surveyed 24 companies. • 9 responded • 5 questions

  15. Will all, part or none of seed that your company sells be IT? • Bayer (LL) – Part of it, by request of grower. • Terral – None. May be treated by retailer. • Syngenta – 60% plus on-site treatment. • Stine – RR2 only. • CPS/DynaGro – Part of it, by request of grower • Stratton Seed – Part of it, by request of grower. • Monsanto – Almost all RR2 seed. • Pioneer – Offered in limited geographic areas. • Hornbeck – 85% of RR2 seed, other by request.

  16. If all or part will be treated, with what product(s)? • Bayer (LL) – Trilex 6000 and other by request? • Terral – Decision left to retailer. • Syngenta – CrusierMaxx. • Stine – RR2 with CruiserMaxx • CPS/DynaGro – Crusier, Gaucho • Stratton Seed – CruiserMaxx • Monsanto – RR2 with Acceleron • Pioneer - Gaucho • Hornbeck – Various at request of grower.

  17. Has your policy on IST recently changed? If so, why? Bayer (LL) – Yes, all seed treated in 2009. Terral – No. Syngenta – CrusierMaxx is policy for 2010. Stine – Switched to CruiserMaxx. CPS/DynaGro – Not since 2008. Stratton Seed – No. Monsanto – Yes, to maximize yield potential. Hornbeck – No.

  18. If all or part will be treated, will you provide OVTs untreated if required? • Bayer (LL) – Yes. . . • Terral – Yes, but . . . • Syngenta – Yes, but . . . • CPS/DynaGro – Yes, but . . . • Stratton Seed – Yes, but . . . • Monsanto – “General policy is to forego entry of RR2s in OVTs that require untreated seed.” • Pioneer – Yes, but . . . • Hornbeck – Yes, but . . .

  19. Insecticide Seed Treatments (IST’s)For Soybean in the Midsouth, 2008 Gus Lorenz, Roger Leonard, Scott Stewart, Angus Catchot

  20. Soybean Production Systems Less and Less Tillage Weed Control Systems (RR) Higher Input Costs; Higher Yields Reduced Seeding Rates Earlier and Earlier Planting • Seedling Stresses • Insect Pests • Pathogens

  21. Control Soybean Insects – 2007 The roots and nitrogen-fixing nodules of soybean plants are damaged by several insects that inhabit the soil. This list includes beetle larvae, soybean nodule fly larvae, white grubs and wireworms, etc. Additionally, there are several pests of seedling soybean above ground. No treatment thresholds have been determined yet for these pests and control measures for this kind of damage are not recommended. Seed treatments are currently being evaluated.

  22. Soybean IST Performance2003 - 2008 0.24

  23. Treated Untreated Treated Untreated Unt Treated Treated

  24. Related to Plant Health -Insect Pest Complex

  25. Horseshoe Lake, AR 2006

  26. Soybean IST Performance Mid-South 2003-20073.5 bu/Acre Average Cruiser (1.28 oz form/cwt) 85% Probability of Net Return 2.5 20 1 10 30 40 50 66 Trial Number

  27. Soybean IST PerformanceMid-South 2003-20072.8 bu/Acre Average (Gaucho 1.6 - 2.0 oz form/cwt) 71% Probability of Net Return 1 7 13 19 34 Trial Number

  28. Soybean IST Performance Mid-South 2003-20083.3 bu/Acre Average 79% Probability of Positive Net Return Bu/Acre Above/Below Check Number of Trials (> 100)

  29. Probability of Seed Yield Increase??? • Consider Early Season Plant Stresses • Soil Conditions For Seed Germ. • Plant Residue • Burn Down App. Timing • Field History of Pests • Field Yield Potential • Producer Attitude For Inputs • Risk Management

  30. Rates for Soybean Cruiser 5F 1.28 oz/ cwt Cruiser Maxx 3.0 oz/cwt Gaucho 600 1.6-3.2 oz/ cwt NipsIt Inside 1.28 oz/ cwt Acceleron 1.6-3.2 oz/ cwt

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