Crop & Pest Report

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Entomology

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Biocontrol of Leafy Spurge Using Aphthona Flea Beetles (06/08/17)

It’s early for collecting and releasing leaf spurge flea beetles for biocontrol of the noxious weed leafy spurge. But, we’ve already had some calls / questions about it.

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Canola Flea Beetles Peak Emergence (06/08/17)

Crucifer and stripped flea beetles are peaking or just past peak in NC and NE canola growing areas as reported by T.J. Prochaska at NCREC and L. Lubenow at LREC.

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New Cutworm Publication in Canada (06/08/17)

A new publication titled ‘Cutworm Pests of Crops on the Canadian Prairies - Identification and Management Field Guide’ has been written for Saskatchewan, Alberta, and Manitoba and adjacent states in the USA.

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Insect Repellent Clothing Means More Protection from Ticks and Mosquitos (06/01/17)

Farmers, ranchers, consultants, scouts, seed inspectors, insurance adjusters, handlers, workers, and especially custom pesticide applicators are routinely subjected to ticks and mosquitos.

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Sugarbeet Root Maggot Update: Peak Fly Expected in Two Weeks (06/01/17)

Most overwintered sugarbeet root maggots (SBRM) are in either the larval or pupal stage in last-year’s sugarbeet fields, and nearly all are within the upper two inches from the soil surface. However, it will not be surprising to see an occasional fly in the next couple of days, with activity picking up significantly by the end of next week.

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Canola Flea Beetles Emerging (06/01/17)

Crucifer and stripped flea beetles are emerging now and can be found in the NE, NC and SW areas of canola in ND.

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IPM Crop Survey Starts (06/01/17)

We have a new group of field scouts for the Integrated Pest Management (IPM) Crop Survey in 2017!

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Cutworms Severe in SW ND (06/01/17)

Severe feeding injury and significant stand loss (several acres per field) from cutworms have been observed in canola, spring wheat, field peas and forages in southwest North Dakota this spring.

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Sugarbeet Root Maggot: Long-Range Forecast (05/25/17)

Sugarbeet Root Maggot (SBRM) fly activity is expected to begin and peak at nearly average dates this year.

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EPA Review of Pyrethroid Bifenthrin (05/25/17)

Bifenthrin provides protection again many chewing and piercing sucking insect pests and spider mites, and is labeled on over 120 crops nationwide.

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Alfalfa Weevil Active (05/25/17)

Alfalfa weevil adult and larvae have been reported defoliating alfalfa in Bowman County in southwest ND.

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Label Changes for Belay® Insecticides (5/18/17)

The active ingredient of Belay® insecticide is clothianidin, a third generation neonicotinoid, which has been registered for control of piercing sucking insects including stink bugs, aphids, plant bugs, Colorado potato beetle, leafhoppers and more.

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Watch for Ticks - Lyme Disease Moving West in ND (5/18/17)

With warmer spring weather, ticks are starting to get active and looking for hosts to feed on.

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Cereal Aphids in Winter Wheat (5/11/17)

Cereal aphids, English grain aphids and bird cherry oat aphids, were observed on May 9th in the winter wheat trial at Fargo by Dr. Friskop, NDSU Extension Plant Pathologist.

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Results of 2016 NW Pea and Lentil Survey for Insect Pests (09/15/16)

A scouting program located in northwest North Dakota was initiated in 2016, and included monitoring for several major insect pests of field peas and lentils from late May to mid-August.

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Potato Psyllid Alert (09/08/16)

Potato psyllids have been reported in specific fields in western and central North Dakota.

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Dingy Cutworm on Sunflowers (09/01/16)

Dingy cutworms moths are being observed laying eggs on sunflower heads (and other Asteraceae species), especially along weedy field margins.

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Monarch Migration (09/01/16)

Many people have remarked about how difficult it has been to find monarch butterflies or larvae (caterpillars) this year.

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Prevent Stored Grain Insects from Damaging Your Crops in Bins (08/18/16)

This article is worth repeating on the important of getting bins ready for grain storage to minimized insect pest problems in bins (Source: 2014 Crop & Pest Report).

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Pea Aphids in Field Peas (08/18/16)

Pea aphids are being observed at economic populations in the NW area of North Dakota (source: A. Kalil, NW Pulse Crop Survey, Williston REC).

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