Effect of Fungicide Seed Treatments on Stand Establishment, Seedling Disease, and Yield of Soybean in North Dakota

Plant Disease
C A Bradley

Abstract

Seedling diseases of soybean (Glycine max) can be common under cool and moist soil conditions and may be caused by a complex of pathogens in North Dakota. Managing these diseases can be difficult due to wide host ranges of the pathogens and lack of resistant cultivars. Field trials were conducted to evaluate the effects of three different fungicide seed treatments and an untreated control on soybean at six locations in 2003 and eight locations in 2004 in North Dakota, for a total of 14 environments. The fungicides evaluated were fludioxonil + mefenoxam (Warden RTA), azoxystrobin + metalaxyl (SoyGard), and Bacillus pumilus GB34 (Yield Shield). Significant (P ≤ 0.05) environment-seed treatment interactions were observed, indicating that environment played a role in when benefits from seed treatments were observed. At least one of the fungicide seed treatments provided significant protection against plant stand and yield losses compared with the untreated control in 4 of the 12 environments where plant stand was measured and 4 of the 14 environments where yield was measured. Root lesions were reduced significantly by at least one of the fungicide seed treatments compared with the untreated control in 5 of the 11 environments where...Continue Reading

References

Jul 31, 2002·Pest Management Science·Dave W BartlettBob Parr-Dobrzanski
Oct 24, 2008·Phytopathology·Joseph W KloepperShouan Zhang

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Citations

Mar 21, 2019·Pest Management Science·Ashwin Sancheti, Lu-Kwang Ju
Oct 10, 2012·Pest Management Science·Ronald ZeunMichael Oostendorp
Feb 1, 2020·Pest Management Science·Felipe Fadel SartoriDurval Dourado-Neto
Apr 30, 2009·Annual Review of Phytopathology·Gary P Munkvold
Sep 16, 2020·Plant Disease·Zachary A NoelMartin I Chilvers
Apr 17, 2021·Frontiers in Plant Science·Elizabeth M ClevingerM A Saghai Maroof
Jul 13, 2016·ACS Applied Materials & Interfaces·Natthaporn KhamsenSiwapon Srisonphan
Aug 20, 2021·Frontiers in Plant Science·Mulla S AyeshaRamanan Uma Shaanker

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