Viper: imazamox + fomesafen

Trade Names	Viper (available only in Viper co-pack of Viper + Reflex)
Formulation	WG + Sn
Guaranteed active concentration	70% + 240 g/L
Groups	2, 14
Ontario Schedule	2
Winter Storage	C
Chemical Family	imidazolinone + diphenyl ether
Crop and/or Non-Crop Registrations	Soybeans
Sensitive Weeds	Annual grass (barnyard grass, green and yellow foxtail, witch grass,) and broadleaf (cocklebur, lamb's-quarters, pigweed, ragweed, velvetleaf, lady's-thumb, mustards, nightshades) species including triazine resistant biotypes.
Uptake and Translocation	Contact and systemic. Absorption occurs through foliage and roots.
Basis of Selectivity	Metabolism by soybeans.
Application Methods	Viper is a postemergent program. Apply to actively growing weeds in the cotyledon to 6 true-leaf stage once soybeans have reached the first trifoliate stage. Adding a non-ionic surfactant and liquid fertilizer solution are required. Viper also provides control of some late-emerging weeds.
Residual Activity	Rotational crops include field corn, soybeans, winter wheat.
Unique Characteristics	Some rotational restrictions apply (See label for details).
Manufacturer / Registrant	BASF Canada Inc