What spraying requirements apply to Imazapyr Habitat/Polaris?

• A. Requires aerial application only
• B. No adjuvant required; spray width dictates rate
• C. Mix with 5 gallons water per acre; no adjuvant required
• D. Spray adjuvant must be used; need surface equipment; min 2 gal water per acre

Answer: (D)

The key idea is following the product’s spray label: Imazapyr Habitat/Polaris must be applied with a labeled spray adjuvant, using surface equipment, and at a minimum spray volume of 2 gallons per acre. The adjuvant is required to improve spread and wetting on aquatic plant surfaces, helping the herbicide reach and enter the target tissue in water or on shoreline vegetation. Using surface equipment means applying with ground-based spray gear rather than aerial application, which helps control drift and ensures accurate placement along the water’s edge. The minimum 2 gallons per acre ensures there’s enough liquid to thoroughly coat and contact the plants, which is crucial for effectiveness in aquatic environments. The other options miss essential label requirements or misstate application practices: missing the adjuvant, or suggesting aerial-only use, or specifying an incorrect water volume.