Introduction

684
Deltamethrin
Company:
Bayer CropScience (Decis 5 EC - PCP#17734)
Sharda Cropchem Limited (Poleci 2.5 EC Western - PCP#32447)
Insecticide Group
3A
Refer to page 624
Formulations:
deltamethrin formulated as an emulsifiable concentrate.
(Decis - 50 g/L; Poleci – 25 g/L)
• Container sizes - Decis 5EC - 2.4 L and 9.6 L jugs; Poleci 2.5 EC – 4.8 L jugs
Insects Controlled and Registered Crops:
Crops
Alfalfa (seed crops only)
Field corn
Potato
Canola, rapeseed, mustard (condiment and
oilseed quality Brassica juncea varieties)
Sunflower
Wheat, barley, oats, lentils
Rangeland, pastures, roadside, fence row
Flax
Red clover (seed production only)
Application:
Insect
Alfalfa weevil, Lygus bugs
European corn borer
Colorado potato beetle, potato flea beetle, Lygus bugs, leafhoppers
Beet webworm, bertha armyworm, cabbage seedpod weevil (adults only),
clover cutworm, diamondback moth, flea beetles, grasshoppers, Lygus bugs
Sunflower beetle
Cutworms, grasshoppers
Grasshoppers
Cutworms, beet webworm, grasshoppers
Lesser clover leaf weevil (suppression only)
Deltamethrin
• May be applied by air or ground equipment to all crops with the exception of alfalfa, red clover and corn, which
require ground application only. Apply when insects exceed economic threshold numbers with sufficient water for
good coverage. Use higher rates for severe infestations, on dense foliage or when a number of insect growth stages
are present.
• Alfalfa (seed production) - Use higher rates if alfalfa weevil present.
Tank Mixes:
When in a tank-mix the spray mixture must be constantly agitated throughout application. Do not allow the spray mixture
to stand in the spray tank for more than 4 hours after mixing.
Deltamethrin may be tank mixed with the following herbicides: Pardner, Buctril M, Banvel, MCPA, 2,4-D, Puma 120 Super.
Tank mixes with Puma 120 Super or Puma 120 Super plus Buctril M are for use in spring and durum wheat only.
Bayer CropScience also supports the following mixes that are not on the Decis label. Apply mixes according to the most
restrictive use limitations for either product:
• Herbicides – Glyphosate, Odyssey and Solo
• Fungicides – Headline, Lance, Tilt
When a tank mix is used the labels of the tank mix partners are to be consulted.
How it Works:
Deltamethrin is a non-systemic, synthetic pyrethroid which works by contact and ingestion.