Crop & Pest Report

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Crop & Pest Report

Adult Alfalfa Weevil Emerging (05/29/14)

Due to the recent hot weather, adult alfalfa weevils are emerging and have been observed in the southern regions and north central regions of North Dakota (sources: V. Chapara, NCREC).

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IPM Survey Starts (05/29/14)

Summer field scouts were trained in survey protocols on May 21st at the Carrington REC.

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Weather/Crop Phenology Maps (05/22/14)

Maps detailing percent normal rainfall, departure from normal average air temperature, and accumulated wheat growing degree days.

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South-Central ND (05/22/14)

Information from the South-Central region of North Dakota.

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Northeast ND (05/22/14)

Information from the Northeast region of North Dakota.

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Early Season Tan Spot in Winter Wheat (05/22/14)

Tan spot has been found in winter wheat fields southwest of Minot near Rice Lake.

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North-Central ND (05/22/14)

Information from the North-Central region of North Dakota.

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New NDSU Publication: Air Temperature Inversions Causes, Characteristics And Potential Effects On Pesticide Spray Drift - AE1705 (05/22/14)

Pesticide spray drift always has been a costly and frustrating problem for applicators. It’s particularly frustrating because some of the seemingly best weather conditions for pesticide application are often the worst.

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Factors that Impact Activation of Soil-Applied Herbicides (05/22/14)

My father taught me that one should never complain about rain and too much rainfall. I have bit my tongue long enough to come up with an advantage from the rain many of us in the Red River Valley received early Monday morning, good conditions for activation of soil-applied herbicides.

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Fairy Candelabra (05/22/14)

As in the case of yellow whitlowwort that I wrote about last week calls have been coming in about fairy candelabra (Androsace occidentalis) identification.

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Zidua Labeled on Wheat (05/22/14)

Question: I have a client who is asking about the new Zidua herbicide registration on wheat. Are all wheat varieties tolerant to Zidua and has NDSU done any research on this?

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Busy, Late Spring Fertility Issues (05/22/14)

I fertilized for corn, but I am going to soybean. If high N rates were applied earlier, but now soybean is going to be grown, the N applied will be taken up by the soybean, but do not expect a yield increase from its application.

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North Dakota Corn Nitrogen Calculator Update (05/22/14)

In the initial post of the North Dakota Corn Nitrogen Calculator released a few weeks ago, http://www.ndsu.edu/pubweb/soils/corn/, there were few issues when it was accessed using Internet Explorer.

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U.S. Fusarium Head Blight (FHB) Prediction Center Tool Available (05/22/14)

The National FHB Prediction Tool also is available for use this season. Although we have no crops near flowering, the southeastern states are experiencing low to medium risks for scab development in winter wheat.

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Small Grain Disease Forecasting Site Available (05/22/14)

The NDSU small grain disease forecasting website is now available for this growing season. The site uses weather and growth stage data to assess the risk of infection for the foliar pathogens that cause tan spot, Septoria, and leaf rust.

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Soil temperature, sugarbeet emergence and the need to manage pests and diseases (05/22/14)

Sugar beet seeds germinate and emerge over a wide temperature range in the presence of adequate moisture and oxygen supply.

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Managing early season diseases of sugarbeet (05/22/14)

The most common early season diseases are damping-off, which may be caused by Pythium, Rhizoctonia and Aphanomyces.

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Internal blackheart and heat stress in seed potato (05/22/14)

The first step to ensure a good potato harvest starts with seed tubers that are free from virus, diseases, herbicide contamination, and any other disorder.

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Canola yield potential (05/22/14)

Canola is an early season oil crop well adapted to the northern parts of North Dakota and Minnesota. In 2013, North Dakota accounted for approximately 67 percent of the canola acreage planted in the U.S.

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Imbibitional chilling injury of corn (05/22/14)

Very little corn has been planted so far this year. There were a number of fields that were planted in early May when soils temperatures were far below optimum, and a larger number of acres were planted this past weekend.

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