Lorsban™ 4E

Protect your crop yield from damaging insects with Lorsban™ 4E. One of the most widely used insecticides in the world, Lorsban™ contains three modes of action for the best possible insect control in a wide range of crops. Lorsban™ 4E contains a Group 1B (organophosphate) insecticide.
Lorsban 4E logo


Insects controlled
  • Alfalfa looper
  • Army cutworm
  • Bertha armyworm
  • Black cutworm
  • Colorado potato beetle (larvae)
  • Common armyworm
  • Dark-sided cutworm
  • Diamondback moth (larvae)
  • Grasshopper
  • Lygus bug
  • Pale western cutworm
  • Potato

Crops & Crop Rotation

  • Wheat
  • Barley
  • Oats
  • Canola
  • Flax
  • Lentils
  • Sunflowers
  • Sugar beets
  • Potatoes
  • Field corn
  • Sweet corn (seedling or pre-plant)


  • Use lower rate for young insects, light infestations or sparse foliage
  • Ground: 20-80 L/ac
  • Aerial: 4-12 L/ac

When to Apply

  • When economic damage is apparent
  • When insect numbers reach the economic threshold 


4 hours

Tank Mixes and Mixing Instructions

On wheat, barley and oats:
  • Avenge®
  • Banvel® + 2,4-D Amine
  • Buctril® M
  • MCPA Amine or Ester
  • 2,4-D Amine or Ester

Grazing & Harvest

Cereals grown for cover crop should not be harvested for human or animal consumption if treated within 60 days of harvest.

Application Guidelines

Any insect population may contain individuals naturally resistant to Lorsban 4E and other Group 1B insecticides. The resistant individuals may dominate the insect population if this group of insecticides is used repeatedly in the same fields. Other resistance mechanisms that are not linked to site of action but are specific for individual chemicals, such as enhanced metabolism, may also exist. Appropriate resistance management strategies should be followed.

  • Uniform crop coverage is essential.
  • Use a boom configuration that provides optimum coverage.
  • Use higher rates where infestations are heavy or foliage is dense.