Option 3: 20% Unsprayed Refuge

Plant at least 20 acres of non-B.t. cotton as a refuge for every 80 acres of B.t. cotton (80% B.t., 20% refuge). This refuge may be treated with any insecticides (excluding foliar B.t.k. products). All B.t. fields must be within one mile (preferably within one-half mile or closer) of the associated refuge (field border to field border).

To avoid mixing seed in the planting process, be sure to clean all seed out of hoppers when switching from non-B.t. seed to B.t. seed, or vice versa.

In cases where placement of the refuge within one mile of the B.t. cotton would be in conflict with state seed production regulations, the grower must plant the refuge as close to the B.t. cotton as allowed.