University
of Illinois Extension
The
Bulletin
Pest management and crop development information for Illinois
No. 23, October 8, 2004TABLE OF
CONTENTS (links are to the website of The Bulletin)
Mark Your Calendars for the 2005 Crop Protection
Technology Conference
The Illinois Crop Protection Technology Conference will be held
January 5 and 6. Six symposia and 15 specialty seminars will
follow the keynote session on climatological changes and their
effects on crop production and crop protection practices.
Dates and Locations Set for the 2005 University
of Illinois Corn and Soybean Classics
The six Corn and Soybean Classics scheduled around the state
January 11-20 will focus on timely issues associated with crop
production and protection.
Follow-up to Our Article Regarding YieldGard
Rootworm Corn
Read more about the issue regarding YieldGard Rootworm corn.
Results of Variant Western Corn Rootworm
Larval-Injury Survey
Results are presented of a 24-county survey in July and August
of western corn rootworm larval injury. Producers are encouraged
to base their management decisions for 2005 not solely on their
county's average, but on scouting input and the use of
thresholds.
Clarification Regarding the 2004 Evaluations of
Corn Rootworm Control Products
Force 3G was applied by mistake at a lower-than-recommended rate
in the 2004 evaluation of corn rootworm control products.
Does the 2004 Fall Flight of Soybean Aphids Help
Us Forecast Their Potential for 2005?
The fall flight of soybean aphids may provide some insight for
the potential for soybean aphids for the subsequent year. Based
on very limited data over time, the potential for significant
infestations of soybean aphids in 2005 exists (though much can
change between now and next year's growing season).
Introducing the Western Bean Cutworm
The western bean cutworm, historically a severe pest of both
corn and dry beans in the western cornbelt, is moving eastward.
Characteristics, life cycle, feeding habits, and scouting
guidelines are detailed.
Green in the Fields at Harvest
Hophornbeam copperleaf seems to be more prevalent at harvest
this year. The biology of the species is reviewed.
New Crop and Weed Identification DVD
An interactive DVD covering 447 of the most important weeds and
crops in the United States and Canada is available from the
North Central Weed Science Society.
Regional Reports
Reports are provided this issue for northern and west-central
Illinois. |