Betanex: desmedipham

Trade Names	Betanex
Formulation	EC
Guaranteed active concentration	150 g/L
Groups	7
Ontario Schedule	2
Winter Storage	B
Chemical Family	Phenylcarbamate/Phenylcarbamate
Crop and/or Non-Crop Registrations	Sugar beets
Sensitive Weeds	Redroot pigweed, lamb's-quarters and wild mustard. Other weeds like ragweed species, wild buckwheat, nightshade species, kochia, goosefoot and stinkweed will be controlled when application of desmedipham is made following treatment with another preplant or preemergence herbicide.
Uptake and Translocation	Desmedipham is readily absorbed by foliage where it inhibits photosynthesis in the chloroplasts of leaf cells.
Basis of Selectivity	Rapid metabolism in tolerant species.
Application Methods	Postemergence beginning at the 2 true-leaf stage of sugar beets. Up to the 2- or 4-leaf stage of weeds depending upon species. Best control is exhibited on very small, actively growing weeds.
Residual Activity	Soil half-life of desmedipham is less than 1 month.
Unique Characteristics	Desmedipham may cause temporary growth retardation and/or chlorosis or tip-burn to sugar beets when applied to stressed plants. Normal growth is resumed in 10 days after application.
Manufacturer / Registrant	Bayer Cropscience