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Entomology

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Mystery Caterpillar (09/13/18)

Introduction to the Achemon sphinx moth larvae, Eumorpha acehmon (Lepidoptera: Sphingidae).

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Pulse Crop Survey – Insect Pest Report (09/13/18)

NDSU pulse crop scouts (WREC: Shawn Postovit, NCREC: Graysyn Kitts) surveyed field pea, lentil and chickpea fields in northwest and north central North Dakota for insect pests from late May until early August.

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2018 IPM Survey Results – Soybean and Sunflower Insect Pests (09/13/18)

The purpose of the IPM (Integrated Pest Management) Survey is to detect the presence and population levels of diseases and insect pests that are common in soybeans and sunflowers grown in North Dakota.

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Armyworm and Army Cutworm Publication (09/13/18)

If you grow wheat, barley, corn, or forage (alfalfa), you will be interested in this revised extension publication on The Armyworms and the Army cutworm E830 (Revised).

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2018 IPM Survey Results – Small Grain (08/30/18)

The purpose of the IPM (Integrated Pest Management) Survey is to detect the presence and population levels of diseases and insect pests that are common in wheat and barley grown in North Dakota.

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New Soybean Gall Midge Found in other States (08/30/18)

A new insect, soybean gall midge (Diptera: Cecidomyiidae) has been found in soybeans fields in neighboring states including Minnesota, eastern South Dakota, western Iowa and eastern Nebraska.

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Chlorpyrifos update (08/30/18)

Chlorpyrifos (trade names Lorsban 4E, Lorsban Advanced, Cobalt, Cobalt Advanced and several generic insecticides) belongs to the organophosphate group of insecticides, IRAC 1B, and is a widely used broad spectrum neurotoxic pesticide for control of many insect pests of field crops.

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Wheat Stem Sawfly in NC ND (08/16/18)

I've had several other calls on wheat lodging from wheat stem sawfly in Berthold area in Ward County (Andrew Green, NDSU Wheat breeder), Mohall area in Renville County and Souris area in Bottineau County.

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Red Sunflower Seed Weevil High (08/16/18)

Continue to scout for red sunflower seed weevil.

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Soybean Aphids Still Low (08/16/18)

Hot weather has decreased the risk of economic soybean aphid infestations, and soybeans are maturing quickly.

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Scout for Spider Mites in Beans (08/16/18)

It is not surprising to see spider mites showing up in soybeans and dry beans with the hot dry weather.

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Grasshoppers on the Move! (08/16/18)

Grasshoppers have been increasing in parts of North Dakota (see IPM map) and infestations are reported in field edges of soybeans, sunflowers and field corn.

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Red Sunflower Seed Weevil Increasing (08/02/18)

The USDA NASS reports that 54% of the sunflowers were blooming in North Dakota as of July 30th compared to only 31% last year (USDA NASS News Release).

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Protect Pollinators - Wise Insecticide Use (08/02/18)

Bees are in trouble in the United States and other areas of the world.

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Soybean Aphids Increasing Slowly (08/02/18)

Based on recent counts from southeastern ND, soybean aphids are slowly starting to increase.

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Summer Flea Beetles Feeding on Canola Pods (08/02/18)

The summer population of flea beetles has emerged in large numbers this year.

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Scout for Bertha Armyworm in Canola (08/02/18)

Mature bertha armyworm larvae were found feeding on the pods of canola in northcentral McHenry County (Source: Kristine Keller, Farmers Union Oil of Velva, Butte, Drake and Anamoose).

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Good Bugs II Workshop (08/02/18)

Come learn about farming and integrating beneficial insects for natural pest control, a Conservation Biocontrol Short Course!

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Soybean Aphid Numbers Continued Low (07/26/18)

Soybean aphid numbers continued to be low in ND. However, south central Minnesota is seeing increasing populations of soybean aphids.

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Scout for Potato Leafhoppers (07/26/18)

Each year potato leafhoppers migrate into ND on winds from the southeastern United States. Last week, low populations of potato leafhopper nymphs (immature stage) were reported on soybeans near Jamestown.

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