Hemp production, weed control and pulse crop production
are among topics that will be covered during the July 17 field day at North
Dakota State University’s North Central Research Extension Center (NCREC) near
The Northern Pulse Growers Association, Northern Canola
Growers Association, North Dakota Wheat Commission and Farm Credit Services are
sponsoring the event.
The program begins with a pest clinic at 8:30 a.m. Weed,
insect and plant disease samples will be available for viewing.
The tour begins at 9 a.m. with a welcome and coffee and
rolls, and will conclude with a noon meal. The NCREC also is hosting a wheat
preharvest marketing seminar, sponsored by the North Dakota Wheat Commission.
The seminar begins at 1 p.m.
Field day topics are:
* Hemp production strategies
* Weed control research
* Clubroot management and identification in canola
* Omega-3 canola
* Pulse production, NDSU pulse breeding program and
potential pea release
* Managing saline soils with beet lime
Topics for the wheat preharvest marketing seminar are:
* Marketing strategies for harvest and beyond, and the
big issues impacting markets
* Demand outlook for hard red spring and durum wheat
* Challenges and opportunities for North Dakota wheat
producers in 2019
Attending the field day and wheat preharvest marketing
seminar is free of charge. The NCREC is a mile south of Minot on U.S. Highway
The North Dakota State University Langdon Research
Extension Center (LREC) once again is partnering with the Northern Canola
Growers Association (NCGA) to host the 2019 annual field day and plot tours.
The field day will be held Thursday, July 18, at the
LREC, which is one mile east of Langdon, N.D., on North Dakota Highway 5. The
event will run from 8 a.m.
Topics being addressed include:
* An update on the canola clubroot infestation affecting
northeastern North Dakota and an update on the overall 2019 canola growing
* Information on crops being affected by insect activity
during the 2019 growing season
* Soybean production issues, including properly
identifying Palmar amaranth and other weed concerns
* The current situation and possible actions to minimize
disease pressure in small grains
* Production information to support the increased
interest in pulse crops in northeastern North Dakota
* Report on the current farm financial situation and
* Benefits of full-season cover crops
The NCGA is sponsoring the morning coffee break and noon
Register now for the Northern Canola Growers Association Golf Tournament to be held July 18th, 2019 at the Langdon Country Club. Registration for the 4-man best ball tournament is $50/player or $200/team. You may register individually and be placed on a team or register a complete team. Registration fee includes 9 holes of golf, a golf cart, refreshments, and supper at the club house. Prizes will be awarded. Registration for the Langdon tournament is limited to the first 132 players, so register early! This tournament is made possible by the support of our industry sponsors.
If you would like to register for this year’s tournament please fill out the registration form and return along with payment to:
Northern Canola Growers Association 125 Slate Drive Suite #4 Bismarck, ND 58503
At the start of spring, the cool, wet weather delayed emergence of flea beetles and the early to mid-May-seeded canola. Now, the hot weather has pushed flea beetles to emerge in large numbers just as the canola is popping. After the seed sits in the ground for 21+ days with little plant growth, the effectiveness and residue of the neonicotinoid seed treatment is significantly reduced. This week some growers are spraying a foliar ‘rescue’ insecticide treatment on top of the insecticide seed treatment to manage the ‘feeding frenzy’ of flea beetles. In some case, three foliar applications were applied to manage the different emergence waves of flea beetles. Hot spots are in the major canola producing areas of ND including North Central (Bottineau Co.), Northeast (Cavalier Co.) and Southwest.
Fields should be scouted daily to identify economic injury or poor performance of insecticide seed treatments. Look for pitting and defoliation on cotyledons and true leaves when scouting. Flea beetle often concentrate on edges of fields in cool wet weather. Walk a W pattern and scout five sites per field. Estimate defoliation on 10 plants per site. Calculate the average defoliation level among the plants inspected.
For foliar insecticide applications, the action threshold is when an average of 20-25% defoliation is found on the cotyledons and/or first true leaves, and beetles are actively feeding in the field.
Foliar treatments must be made quickly. The weakness of foliar control strategies is the inability to cover large number of acres quickly when feeding pressure is high, and residual protection by the insecticides is short (only 5-10 days depending on weather and rate of insecticide), allowing for reinfestation to occur.
Pyrethroid insecticides (a.i. bifenthrin, deltamethrin, gamma-cyhalothrin, zeta-cypermethrin) provide good control of flea beetles and a 7- 10 day residual at the high-labeled rate. If it is hot (above 85⁰F), pyrethroid insecticides break down faster and are not as efficacious at controlling insect pests. So, insecticide application may need to be applied early in the morning or in the evening when daytime temperatures are hot. Insecticides registered for flea beetle management in canola are listed in the 2019 North Dakota Field Crop Insect Management Guide E1143.
For more information, please consult the NDSU Extension fact sheet Integrated Pest Management of Flea Beetles in Canola E1234 (revised).
Janet J. Knodel Lesley Lubenow
Extension Entomologist Area Extension Specialist/Agronomy
NDSU Langdon Research Extension Center