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bifenthrin (Brigade 2EC)

Brigade 2EC can be applied to soil or to foliage. The active ingredient, bifenthrin, is more stable in soil than other pyrethroids, which makes it a viable choice for soil insect control. Brigade 2EC has contact and ingestion activity. It is toxic to many kinds of insects with a relatively long duration of impact from residues on leaves. This and other pyrethroid insecticides (Group 3) should not be used mid-season because they kill predatory insects that help to keep aphids, psyllids, thrips, and spider mites in check. Brigade 2EC is not systemic or translaminar, but residues generally persist on foliage for 7-14 days. Use high water volumes with ground or aerial applications to ensure the product is well distributed in the foliage. Make only two applications, and do not make them less than 21 days apart. Similar products containing bifenthrin are available, including package mixes, but use rates vary.

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Material Type: Insecticides and Repellents
Chemical Classification: Pyrethroid
Signal Word: Warning
Formulation: Liquid
EPA Number: 279-3313

Usage for bifenthrin on Potatoes

Max Application per Season: 32fl oz

Planting to Pre-emergence

Target Application per Acre REI PHI MOA Eff. Notes
Wireworms 9.6-19.2 fl oz 12 h 21 d 3 F-P Apply as a soil incorporated broadcast spray into the furrow at planting or at hilling to control wireworms.

Emergence to Row Closure

Target Application per Acre REI PHI MOA Eff. Notes
Armyworms, Cutworms, Loopers 2.1-6.4 fl oz 12 h 21 d 3 G Worms are on the label but not in the potato section. Apply when small caterpillars are present, but only if it’s before mid-June.
Colorado Potato Beetle 2.1-6.4 fl oz 12 h 21 d 3 G CPBs are on the label but not in the potato section. Apply at 50% egg hatch while larvae are small, but only if it’s before mid-June.
Lygus Bugs 2.1-6.4 fl oz 12 h 21 d 3 G Lygus bugs are on the label but not in the potato section. Apply when nymphs are present before mid-June.
Potato Psyllid 2.1 to 6.4 fl oz 12 h 21 d 3 G (n+a) Apply when adult psyllids are migrating into the field, but only if it’s before mid-June. If early nymphs are present, it may not control the nymphs on the underside of leaves where the product is not well distributed.

Tuber Bulking

Target Application per Acre REI PHI MOA Eff. Notes
Armyworms, Cutworms, Loopers 2.1 to 6.4 fl oz 12 h 21 d 3 P Worms are on the label but not in the potato section. Use of pyrethroid insecticides is not recommended mid-season. If used, apply when small caterpillars are present. Monitor for subsequent pest outbreaks.
Colorado Potato Beetle 2.1 to 6.4 fl oz 12 h 21 d 3 P CPBs are on the label but not in the potato section. Use of pyrethroid insecticides is not recommended mid-season. If used, apply when larvae are small. Monitor for subsequent pest outbreaks.
Lygus Bugs 2.1-6.4 fl oz 12 h 21 d 3 P Lygus bugs are on the label but not in the potato section. Use of pyrethroid insecticides is not recommended mid-season. If used, apply when small larvae are present. Monitor for subsequent pest outbreaks.
Potato Psyllid 2.1-6.4 fl oz 12 h 21 d 3 P (n+a) Use of pyrethroid insecticides is not recommended mid-season. If used, apply when psyllids are present. It may not control nymphs on the underside of leaves where the product is not well distributed. Monitor for subsequent pest outbreaks.

Late Tuber Bulking to Harvest

Target Application per Acre REI PHI MOA Eff. Notes
Colorado Potato Beetle 2.1-6.4 fl oz 12 h 21 d 3 G CPBs are on the label but not in the potato section. Apply at 50% egg hatch while larvae are small.
Potato Psyllid 2.1 to 6.4 fl oz 12 h 21 d 3 G (n+a) Apply when adult psyllids are migrating into the field.
Tuberworm 2.1 to 6.4 fl oz 12 h 21 d 3 G-F Tuberworm is not on the label but applications targeting other pests can control them. Apply in the weeks prior to vine desiccation or harvest when larvae are feeding in the foliage. The PHI is 21-days. Thorough coverage of foliage is essential. Use high water volumes with ground or aerial applications to ensure that the product is well distributed in the foliage. Use at least 0.5 inches of water per acre for chemigation.