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Volume
3 Issue
7
July 5, 2006
Meeting Reminders . . .
Organic Farming Education Day &
Japan Agriculture Standard (JAS) Certification Course Offered
Tuesday
July 11
8:00 a.m. Thief River Falls,
MN
Annual Northwest Research and
Outreach Center
Field Day Scheduled
The annual U of M Northwest Research and Outreach Center (NWROC)
Field Day is scheduled for Wednesday, July 12, 2006, beginning with
registration and coffee at 8 a.m. Visitors are asked to come to the
NWROC’s North Agronomy Farm, approximately 1.0 miles north of the
University of Minnesota Crookston (UMC) campus on Highway 75.
Parking areas will be marked.
Northwest Minnesota Wheat &
Barley Plot Tours
For
a printout of all locations, dates, and times, click here for a
printable summary.
New articles .
. .
Help My Flag is Burning:
Hot Weather and Leaf Tip Necrosis in Wheat
In the past week, I have had several calls about wheat fields that
showed severe 'disease' on the flag leaf. The symptoms were always
described as a dying back of the flag leaf from the tip of the leaf
downwards. This is not a disease but these
symptoms are either caused by hot, dry, and windy weather, a
physiological phenomenon called leaf tip necrosis, or the
combination of both.
Soybean
Aphid Speed Scouting: An Overview
A field scouting method for making soybean aphid treatment decisions
was introduced in 2004. The procedure is referred to as “Speed
Scouting”. The method is designed to speed up decisions on
whether to treat or not by using information learned about the
aphid’s distribution throughout the field.
Soybean Aphids –
When and What to Spray?? A Real Juggling Act
As most of you already know, this was the earliest appearance we’ve
had of soybean aphid in the RRV. And that’s affecting the population
dynamics and the management of this insect pest. Some fields in the
central RRV are already at or above the treatment threshold of 250
aphids/plant and aphid populations are continuing to build. Most of
our fields have just started to flower and, if the weather
cooperates, still have a lot of growth to complete. Treating early
in the season is not something we’ve typically had to
address.
Insects of Interest
A lot of green beetles have been showing up in a variety of crops;
alfalfa, small grains, vegetable gardens, roadsides, all have seen
these short snouted weevils. These are commonly called Pale Green
Weevils and are species of the Polydrussus genus.
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