Proven products now for proven results later:

Your bottom line is our top priority and early preparation will be the key to your success. Co-op is your partner in the field and with an unsurpassed tradition of supplying you with the essential growing products and service you demand, we are here to guide you towards more rewarding yields.

As the leader in crop service and management, take advantage of our know-how and expert advice. As growing season begins, be sure to explore our suggestions for these proven adjuvant products and more.


Versatile Drift Reduction and Deposition

InterLock® is a crop-based adjuvant that improves spray deposition on intended targets and reduces spray drift. It is also a canopy-penetrating agent. InterLock® adjuvant works effectively with herbicides, fungicides, insecticides, desiccants and defoliants. Plus, it increases the effectiveness of fungicides, such as those labeled for Asian soybean rust control. 

Derived from vegetable oil, InterLock® adjuvant drastically reduces the amount of fine spray particles in the spray pattern and increases droplet speed without thickening the spray. By keeping more spray droplets within the most effective size range, InterLock® adjuvant improves coverage, increases canopy penetration, and reduces drift and evaporation of pesticides, whether they are applied by ground or air.

While InterLock® adjuvant is effective at low rates, it does not negatively affect spray patterns like other drift-control adjuvants, even if higher rates or air-assisted nozzles are used. For best product performance, select and use spray equipment properly, including boom height, nozzle type, size and pressure.


  • InterLock adjuvant delivers with more droplets in the ideal droplet diameter spectrum by reducing fines.
  • Improves deposition and coverage with the right sizes droplet for greater leaf coverage.
  • InterLock adjuvant helps get active ingredient deeper into plant canopy for better efficacy.
  • InterLock adjuvant
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Gets more spray into the canopy and on target for superior performance

MasterLock® adjuvant combines InterLock® and DropTight™ technologies in one crop-based adjuvant to enhance spray coverage. This unique blend of cutting-edge formulations improves spray deposition, canopy penetration and spray droplet sticking and spreading, while reducing spray drift. MasterLock® adjuvant works effectively with fungicides and insecticides, and may be used with herbicides and other crop protection products.

  • MasterLock® adjuvant helps optimize droplet adhesion, which reduces bounce and increases droplet spreading for improved contact and coverage.
  • Formulated combination of increased adhesion, reduction in bounce and increased canopy penetration leads to more fungicide and insecticide where it is needed the most.
  • MasterLock adjuvant is NPE free, therefore should not contribute to arrested ear. 
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Drift and deposition aid for new dicamba herbicide technologies

OnTarget® adjuvant is a patent-pending technology specifically designed for ultra and extra coarse nozzles, for use with the new dicamba herbicide chemistries. This adjuvant system has been formulated to reduce driftable fines with dicamba up to 50%, and improves the efficacy of dicamba herbicides by enhancing droplet spreading and canopy penetration. 

Ultra and extra coarse nozzles generate large droplets, which help reduce fines but generally provide less leaf surface coverage. Along with further reducing drift, OnTarget adjuvant is designed to aid with droplet spreading and canopy deposition for improved herbicide efficacy.
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