Crop & Pest Report

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Crop & Pest Report

ent.knodel.red sunflower seed weevil

Get Ready To Scout for Red Sunflower Seed Weevils (07/31/14)

Red sunflower seed weevil (RSSW) adults will be emerging soon and will fly to the nearest flowering sunflowers.

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ent.knodel.banded sunflower moth trap maps

Banded Sunflower Moth and Sunflower Moth Trap Update (07/31/14)

Sunflower moth continues to be trapped at low, sub-economic levels in the IPM scouts’ pheromone traps.

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ent.knodel.soybean aphid and sunflower growth maps

Soybean Aphids (07/31/14)

The IPM Crop Scouts surveyed 92 soybean fields last week and soybean aphids were observed in only 9% of the fields surveyed.

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ent.knodel.lygus bug

Insect Control in Confection Sunflowers (07/31/14)

Control of seed-infesting insect pests is important for confection sunflowers and dehulled oilseed sunflowers since they are grown under contract with very low tolerance levels of insect seed damage.

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wthr.1.corn

Weather/Crop Phenology Maps (07/24/14)

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

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ent.knodel.8.spotted wing drosophila male

Spotted Wing Drosophila Flying (07/24/14)

Kathy Wiederholt of Carrington Research Extension Center trapped the invasive spotted wing Drosophila in cantaloupe from a compost pile in Carrington in Foster County on Monday, July 21st.

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wsci.zollinger.1.sharpen desiccation MRL status chart

Sharpen Desiccation – MRL Update (As of July 2014) (07/24/14)

currently has an approved label for Sharpen herbicide as a harvest-aid / desiccation application for cotton, soybean, dry bean, field pea, lentil, chickpea, canola, safflower, and sunflower, however, the MRL's (Maximum Residue Levels) supporting the harvest-aid / desiccation uses have not been cleared for all countries.

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Root Rot of Soybean Update: Rhizoctonia (07/24/14)

Last week we wrote an article about the high levels of soybean root rots showing up in the region. Although multiple pathogens can cause root rots on soybeans, Rhizoctonia has been consistently showing up this year.

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ppth.friskop.4.scb FHB.fig2

Scab (FHB) Update (07/24/14)

During the past two weeks, I had the opportunity to visit several winter wheat production fields and winter wheat variety trials located on NDSU Extension and Research Centers.

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ppth.markell.2.tan spot percent incidence

Wheat Disease Update (07/24/14)

The IPM survey scouts visited 124 wheat fields last week. Tan spot was detected in approximately 84% of the wheat fields.

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ppth.friskop.1.corn rust

Rust Review (07/24/14)

We have observed many rust diseases in the last couple weeks...

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ppth.markell.1.snflr dwny mildw percent incidence

IPM Crop Scouts Detecting Downy Mildew in Sunflower (07/24/14)

The IPM Crop Scouts have surveyed over 50 sunflower fields in the last two weeks and found downy mildew in approximately half of them.

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plsc.kandel.1.soybean root nodules

Soybean Root Nodules (07/24/14)

With the right kind of Rhizobia bacteria, nodules may form on the soybean roots. With this symbiotic relationship between the bacteria and the soybean plant, nitrogen gas is fixed into a plant-available nitrogen form.

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Cercospora Leaf Spot Alert (07/24/14)

Cercospora leaf spot is the most devastating foliar disease of sugarbeet in Minnesota and North Dakota. The disease is caused by the fungal pathogen Cercospora beticola.

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ent.knodel.4.banded sunflower moth

Time to Scout for Banded Sunflower Moth (07/24/14)

IPM scouts are detecting increasing numbers of banded sunflower moths in pheromone traps.

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ent.knodel.7.wheat midge dd and wheat growth stages

Wheat Midge Update (07/24/14)

Wheat midge is near the end of its flight...

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ent.knodel.3.sunflower moth trapping

Sunflower Moth Detected in Traps (07/24/14)

One to two sunflower moths per trap per week were detected in IPM scout’s pheromone traps in Golden Valley, Stark and Cass Counties.

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ent.knodel.1soybean growth stages

Scout for Soybean Aphids (07/24/14)

The soybean aphids have arrived right on time!

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Small Grain Herbicides with Fungicides (07/17/14)

The following is from an email thread with Dr. Kirk Howatt, NDSU Weed Scientist.

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plsc.kandel.tile drainage machine

Sub-Surface Water Management (07/17/14)

Tile drainage does not remove “plant available” water from the soil; it merely removes “gravitational” water that would drain naturally, if unimpeded by confining layers in the soil.

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