Telar: chlorsulfuron

Trade Names	Telar
Formulation	DF
Guaranteed active concentration	75%
Groups	2
Ontario Schedule	2
Winter Storage	C
Chemical Family	Sulfonyl urea
Crop and/or Non-Crop Registrations	Non-crop land
Sensitive Weeds	Annual and perennial broadleaf weeds such as wild carrot, Canada thistle, sow-thistle, scentless chamomile, lamb's-quarters, wild mustard, redroot pigweed, stinkweed, cow cockle, chickweed and Russian thistle.
Uptake and Translocation	Thoroughly systemic after absorption of either foliage or roots. Foliar absorption is rapid.
Basis of Selectivity	A disruption of amino acid metabolism leads to an inhibition of cell division in sensitive plants. Faster rates of metabolic detoxification have been observed in tolerant species.
Application Methods	Preemergence or early postemergence.
Residual Activity	Half-life is 4-6 weeks under growing season conditions. Degradation is faster with higher soil temperatures and/or lower soil pH.
Unique Characteristics	Although degradation is moderately rapid, extremely low residues can be highly toxic to some broadleaf weeds, such as wild carrot, for up to 2 years after application. Use of this product requires a surfactant.
Manufacturer / Registrant	Dupont Canada Inc.