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 Agrisure GT provides exceptional tolerance to in-crop applications of glyphosate-based herbicides. Corn hybrids with Agrisure GT are carefully selected to provide not only outstanding glyphosate tolerance via the trait, but also to preserve the genetic potential of the hybrid via the proven inbred line conversion process.
 Agrisure CB/LL allows hybrids to reach their maximum yield by providing excellent control of European corn borer (ECB) plus other damaging insects. Agrisure CB/LL features the B.t.11 event, which has been protecting cornfields since it was introduced in 1997. In addition, all hybrids with Agrisure CB/LL are tolerant to LIBERTY® herbicide, providing growers with another option for weed control.
Agrisure RW offers excellent built-in control of Northern, Western and Mexican corn rootworms in leading hybrids, offering outstanding yield results. Agrisure RW has been placed in leading Syngenta genetics utilizing an industry-leading trait conversion process that ensures hybrids will reach their full yield potential.
 Agrisure CB/LL/RW is a stacked trait that allows the grower to take advantage of both corn borer and root worm resistance technology.
 Agrisure GT/CB/LL provides the combined benefits of Agrisure GT and Agrisure CB/LL by stacking these proven technologies into a single hybrid. Because Agrisure GT/CB/LL features both the GA21 and B.t.11 events, hybrids with Agrisure GT/CB/LL combine the convenience and performance of glyphosate-tolerance, corn borer resistance and tolerance to LIBERTY® herbicide.
 Agrisure® 3000GT combines Agrisure glyphosate tolerant corn with corn borer and rootworm resistance. Growers will experience the full advantage of all traits in a single elite genetic hybrid.
Common Refuge Planting Requirements for
RW, CB/LL/RW or 3000GT
Agrisure products containing the stacked insect protection traits Agrisure
CB/LL and Agrisure RW require a refuge plan. Two refuge options are
available to growers planting corn hybrids with Agrisure CB/LL/RW
(including the stack combination Agrisure 3000GT).The first option, planting
a block of corn that serves as a refuge for both corn borers and corn rootworms,
is referred to as a common refuge. The second option available to
growers requires planting a separate refuge for corn borers and a separate
refuge for corn rootworms.
Common Refuge Planting Requirements
A common refuge is a fi eld or area of corn that does not contain Agrisure
CB/LL/RW or other trait products for controlling corn borers and/or
corn rootworms. Each grower planting corn hybrids with Agrisure CB/LL/RW must plant his own refuge. The refuge may be planted in a variety of
configurations as illustrated in this stewardship guide. Specific requirements
for the common refuge are as follows:
- A minimum of 20 percent of fi eld corn acres must be planted to corn
hybrids that do not control corn borer and/or corn rootworm. If you
plant corn hybrids with Agrisure CB/LL/RW in cotton-growing regions,
you must plant a minimum of 50 percent refuge (see p. 9 for map and list
of cotton growing areas).
- Common Refuge planting options include blocks adjacent to Agrisure
CB/LL/RW corn fields, perimeter strips or in-field strips.
a. The common refuge must be planted within or immediately adjacent
(e.g., across the road) to Agrisure CB/LL/RW corn fields.
b. Common refuge planted as in-field or perimeter strips must be at least
4 consecutive rows wide, but the preference is for 6 rows.
- A neighbor’s field does not meet the refuge requirement.
- Common Refuge Insecticide Treatment requirements:
a. Insecticide treatment for controlling European Corn Borer (ECB), corn
earworm (CEW) and/or Southwestern Corn Borer (SWCB) may
be applied to the refuge if economic thresholds are reached for one
or more of these target pests. Contact local or regional professionals,
such as your county extension agent, if you have questions regarding
the economic threshold of target pests.
b. Bt-based microbial insecticides may not be applied to the corn refuges.
c. The common refuge corn acres can be treated for corn rootworm larvae
and other soil pests with a soil-applied or seed-applied insecticide.
d. Insecticides labeled for control of corn rootworm adults can be applied
to the common refuge provided the field with Agrisure CB/LL/RW hybrids is treated in a similar manner.
- The common refuge should be planted with a hybrid that is agronomically
similar to and managed similarly to your corn with Agrisure CB/LL/RW.
- The common refuge should be planted in fields with a similar history as
the Agrisure CB/LL/RW.
a. If the common refuge is planted in a field that is in a crop rotation system,
the corn hybrids with Agrisure CB/LL/RW must also be planted
in a field that is in a crop rotation system.
b. If the common refuge is planted on continuous corn, the corn hybrids
with Agrisure CB/LL/RW may be planted on either continuous or in a
crop rotation system.
Agrisure CB/LL and Agrisure GT/CB/LL Refuge Requirements
Agrisure products containing Agrisure CB/LL (including the stack combination
Agrisure GT/CB/LL) require a corn borer refuge plan. A corn
borer refuge is a field or area of corn that does not contain Agrisure
CB/LL or other trait products for controlling ECB. Each grower planting
corn hybrids with Agrisure CB/LL must plant his or her own refuge.
The refuge may be planted in a variety of configurations as illustrated in
this stewardship guide. Specific requirements for the corn borer refuge
are as follows:
- A minimum of 20 percent of Agrisure field corn acres* must be planted
to corn hybrids that do not control corn borer (the corn borer refuge
may contain corn hybrids that control corn rootworm, such as Agrisure
RW). If you plant corn hybrids with Agrisure CB/LL in cotton-growing
regions, you must
plant a minimum of 50 percent refuge.
- The corn borer refuge must be placed within one-half mile of corn
hybrids with Agrisure CB/LL.
- A neighbor’s field does not meet the refuge requirement.
- Refuge Insecticide Treatment requirements:
a. Insecticide treatment for controlling European Corn Borer (ECB), corn
earworm (CEW) and/or Southwestern Corn Borer (SWCB) may
be applied to the refuge if economic thresholds are reached for one
or more of these target pests. Contact local or regional professionals,
such as your county extension agent, if you have questions regarding
the economic threshold of target pests.
b. Bt-based microbial insecticides may not be applied to the corn refuges.
- The corn borer refuge should be planted with a hybrid that is agronomically
similar to and managed similar to your corn with Agrisure CB/LL.
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