March 21, 2008

Several new insecticide products/formulations are available for Nebraska field crops this year. Further details are outlined below:

FMC

• Brigade EC; active ingredient bifenthrin
• 
  — Replaces Capture 2EC. Capture LFR still labeled for use at planting in corn.

• Hero 1.24 EC; active ingredients bifenthrin and zeta-cypermethrin
• 
  — Labelled on corn and various vegetable crops

• Mustang Max EC; new formulation of Mustang Max
• 
  — Same use rates, amount of active ingredient (ai), crops, pests as before
  — Goes from "Warning" to "Caution" with new formulation
  — Now labeled for use on pasture/range and other grass crops, sunflowers, potatoes, and a number of other crops

Dow AgroSciences

• Lorsban 15G, 4E, and 75WG; label changes for field corn uses
  — Preharvest interval drops from 35 to 21 days
  — 1.0 lb ai per acre maximum application with exception of 1.3 lb ai per acre Lorsban 15G at-plant application

• Cobalt
  — Active ingredients 2.5 lb chlorpyrifos + 0.045 lb gamma-cyhalothrin per gallon
  — Registered for use on alfalfa, field corn, sweet corn and seed corn, sorghum, soybeans, sunflowers and wheat against a variety of insect pests

Bayer Corporation

• Leverage 2.7
  — Active ingredients1.6 lbs imidacloprid and 1.1 lb cyfluthrin per gallon
  — Registered for soybeans November 2007
  — May be registered for other crops in the future
  — 3.8 oz/acre rate on soybeans, 45-day pre-harvest interval

Insecticide use tables organized by crop are available online at http://entomology.unl.edu/fldcrops/pestipm.shtml. They now include information on insecticide product modes of action for use in avoiding resistance development.

Bob Wright
Extension Entomologist