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2012 Field Evaluation of Fungicide Treated Buffer Strips for Management of Ascochyta Blight on Lentils Grown Adjacent to a Previous Lentil Crop - Valley County, MT (summary)
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When lentils are planted adjacent to a field where lentils were grown the previous year, a pronounced gradient of Ascochyta blight is often observed. In this study, neither the use of a 90-foot-wide or 270-foot-wide fungicide treated strip provided satisfactory disease control in the lentils grown immediately adjacent to the previous year’s lentil crop. We conclude that the use of a fungicide-treated strip is a risky strategy, and that a foliar fungicide application to the entire field may be advisable in lentils planted adjacent to a field where they were seeded the previous year, especially when weather conditions favor the disease.
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2012 Field Evaluation of Fungicides and Partial Host Resistance for Management of Sclerotinia Stem Rot on Soybeans - Carrington (summary)
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Under moderate Sclerotinia disease pressure, Endura but not Proline or Cobra applied as a single application at early bloom (early R2 growth stage) significantly reduced Sclerotinia stem rot relative to the control. Under the narrow 7-inch row spacing used, fungicides were a more effective tool for managing Sclerotinia stem rot than the use of partially resistant varieties.
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2012 Field Evaluation of Fungicides for Management of Anthracnose and Sclerotinia on Lentils - Carrington (summary)
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Under high anthracnose disease pressure, the registered fungicides Headline and Priaxor provided good disease control and a strong yield response. It was not immediately apparent that Priaxor, which is a premix of the active ingredient found in Headline and another active ingredient, provided an advantage over Headline. When applied as two sequential applications, Endura, Proline, and Vertisan did not provide satisfactory disease control. Quadris showed intermediate performance.
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2012 Field Evaluation of Fungicides for Management of Ascochyta Blight of Chickpeas - Carrington (summary)
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Disease pressure was inadequate to rigorously assess fungicide efficacy in this trial, but the disease control trends were very similar to those observed in the parallel trial conducted in Williston in 2012. To ensure more informative results in future trials, irrigation will be used in future chickpea fungicide trials in Carrington when the weather is unfavorable for disease development.
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2012 Field Evaluation of Fungicides for Management of Ascochyta Blight on Lentils - Carrington (summary)
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Under heavy Ascochyta blight pressure, the registered fungicides Headline and Priaxor performed well. It was not immediately apparent that Priaxor, which is a premix of the active ingredient found in Headline and another active ingredient, provided an advantage over Headline. The registered fungicides Endura, Proline, Quaris, and Vertisan did not provide satisfactory disease control.
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2012 Field Evaluation of Fungicides for Management of Mycosphaerella Blight of Field Peas - Carrington (summary)
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The registered fungicides Headline, Proline, and Priaxor provided excellent control of Mycosphaerella blight. Endura and Vertisan did not perform as well. There was a slight trend towards higher yield and better disease control as the application rate of Priaxor increased from 4 to 6 fl oz/ac.
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2012 Field Evaluation of Fungicides for Management of Sclerotinia on Dry Edible (pinto) Beans Planted to 15-inch Rows - Carrington (summary)
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Under conditions of high disease pressure (susceptible variety, temperature and rainfall conducive to Sclerotinia, and narrow row spacing), Endura at 8 oz/ac provided excellent control of Sclerotinia. Proline at 5.7 fl oz/ac, ProPulse at 8.6 fl oz/ac, and Topsin at 20 fl oz/ac did not provide satisfactory disease control. A rate response was apparent as the application rate of Topsin increased from 20 to 30 to 40 fl oz/ac.
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2012 Field Evaluation of Fungicides for Management of Sclerotinia on Dry Edible (pinto) Beans Seeded to 30-inch Rows - Carrington (summary)
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Endura (8 oz/ac), ProPulse (8.6 fl oz/ac), and Switch (14 oz/ac) applied as two sequential applications and Topsin (40 fl oz/ac) followed by Endura (8 oz/ac) significantly reduced Sclerotinia disease severity relative to the control. Due to late disease onset, little or no yield response was observed in any of the fungicide treatments.
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2012 Field Evaluation of Fungicides for Management of Sclerotinia on Lentils - Carrington (summary)
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None of the registered fungicides evaluated exhibited satisfactory Sclerotinia disease control.
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2012 Field Evaluation of Fungicides for Management of Sclerotinia on Soybeans - Carrington (summary)
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Applied as a single application at early bloom (early R2 growth stage), Endura at 4 oz/ac, Endura at 8 oz/ac, Aproach at 12 fl oz/ac, and the tank-mix of Topsin at 20 fl oz/ac + Proline at 3 fl oz/ac exhibited a strong trend toward reduced Sclerotinia disease severity and increased yield relative to the control. However, additional testing will be needed to confirm that these treatments provide satisfactory disease control.
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