Crop & Pest Report

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Crop & Pest Report

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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wthr.akyuz.corn

Weather/Crop Phenology Maps (07/17/14)

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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North-East ND (07/17/14)

Information from the Northeast region of North Dakota.

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Unintentional (and Unware) Herbicide Movement (07/17/14)

The following is from a ND grower who has made an interesting observation. It may be too late to rectify these ‘trespasses’ this year but we can be mindful next year to reduce this potential source of crop injury as much as possible.

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New Corn Fertility Recommendation Circular Posted on the Web (07/17/14)

The new North Dakota Corn Nitrogen Calculator was posted on my web site in late April. Now, the companion Corn Fertility circular is available on my web site and on the NDSU Extension web pages.

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ppth.chapara.stripe rust wheat

Disease Update: North Central North Dakota (07/17/14)

Stripe rust of wheat was observed in Renville County, ND in winter wheat on July 15, 2014

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ppth.markell.nelson.damping off in soybean

Soybean Root Rots (07/17/14)

We have received many questions about dying soybeans. The cause is, at least in part, severe root rot in much of the state.

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Glyphosate as a Pre-Harvest Aid in Small-Grains (07/17/14)

Winter wheat is approaching maturity and early planted barley is not far behind and therefore, harvest will soon be upon us. Glyphosate can be used as a pre-harvest aid in small grains to control green weeds and to speed up uniform ripening of the crop.

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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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ent.knodel.wheat midge 2013 larval survey

Wheat Midge Degree Day Map (07/17/14)

Continue to scout for wheat midge from heading through early flowering (<50% flowered), especially in areas where the 2013 fall soil survey indicated moderate to high risk for wheat midge larvae (see map on right).

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ent.knodel.adult grasshopper

Watch For Increasing Grasshoppers (07/17/14)

Grasshopper nymphs are increasing in some areas (see maps below) and may start moving into field edges of crops.

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ent.knodel.sunflower grwth stage and banded sunflwr moth.maps

Banded Sunflower Moth Emerging (07/17/14)

IPM scouts trapped banded sunflower moth at one location near Carrington REC in Foster County, so emergence is beginning.

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ent.knodel.soybean aphids map

No Soybean Aphids (07/17/14)

The IPM Crop Scouts have surveyed over 80 soybean fields last week and no soybean aphids were observed in North Dakota.

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ent.knodel.argus tortoise beetle larvae

Argus Tortoise Beetle (07/17/14)

This peculiar looking larva is called the Argus tortoise beetle (Chelymorpha cassidea (Fabricius)).

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ats.endres.1.crop tour

South-Central ND (07/10/14)

Information from the South-Central region of North Dakota.

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wsci.peters.1.drown out

What to do in Fields with Drowned-Out Crops (07/10/14)

Driving through the countryside in Eastern North Dakota and Minnesota has provided the opportunity to see many areas that have received excessive amounts of precipitation.

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Weed ID Resources Available (07/10/14)

Correct weed identification is the first step in successful weed management. The following are resources you can use to ID weeds so you use the correct product or method at the correct time.

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Black Medic Control (07/10/14)

Several consultants have seen black medic increasing in no-till systems and also seen poor control from several herbicide systems in broadleaf crops.

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Late N Application Options (07/10/14)

Read about Late N application options in spring wheat/durum and corn.

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Fusarium Head Blight (Scab) Forecasting Models (07/10/14)

The recent windy days and reduction in extended moisture events has reduced scab risk for a few areas in ND.

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