A5664-3000GT 114 RDM
A5664 is a medium tall, workhorse plant with
exceptional health. It will exhibit excellent grain
quality and test weight with very good standability.
A6164 GT
A 6164 b r i n g s p l a n t h e alth, grain quality and standablilty
to the table. That being said, it is a great choice for dairy
farmers due to its feed value. It will stand a good deal of
stress, so it can be planted on many soil types. A6164
is a favorite for ground where leaf disease is a known
issue, so river bottom land and continuous corn after
corn land will thrive with this plant.
corn rootworm worm Best B
Management Practices
ADULT CRW MANAGEMENT CONSIDERATIONS
• Scout fields for CRW adults during silking stage
(typically July and August) as adult CRW beetles feed
on corn silks and may reduce yield
• Foliar sprays may be an option if CRW beetle
populations reach an economic threshold for damage
(≈1 beetle per plant)1
• Follow university extension service or local crop
consultant recommendations for products, rates, and
proper timing of adult spray applications for reducing
CRW beetle populations
• Multiple sprays may be necessary
All corn rootworm photos by Marlin E. Rice
1 Culy, Edwards & Cornelius. 1992. Journal of Economic Entomology 85: 2440-2446.
©2016 Agricultural Biotechnology Stewardship Technical Committee
• Use B.t. hybrids with multiple modes of
action for CRW control whenever possible
• If using a hybrid with multiple modes of
action for CRW control is not an option,
rotate to a different B.t.-traited hybrid that
controls CRW
• Use a non-B.t.-traited hybrid with insecticide
LARVAL CRW MANAGEMENT CONSIDERATIONS
• The application of an insecticide to the soil surface,
in furrows, and/or incorporated into the soil (referred
to as “soil applied insecticide,” “soil insecticide” or “SAI”)
is not recommended for control of CRW in B.t.-traited
corn hybrids(s) except under limited circumstances.
• Consult with extension, crop consultants or other
local experts for recommendations when considering
a combination of CRW traits and soil applied
insecticides.
• SAIs should not be necessary for CRW control with
pyramided CRW traited B.t. corn hybrid(s).
Rotate at least every 3rd year if any of the following:
• In long-term continuous corn system
• CRW populations are high
• Experiencing problems with CRW trait performance
In areas where rotational-resistant CRW variants exist, such
as extended diapause eggs or soybean, CRW management
options may be needed the following year
Practic
Plant the
Required
Refuge
Rotate
Crops
Manage
CRW with
Insecticides
Rotate
Traits
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