Cucumber, Melon, Pumpkin, Squash - Commercial Herbicides


Herbicides registered for Commercial use on Cucumber, Melon, Pumpkin, and Squash in Utah.

Conventional Herbicides

  Timing and Application Location Relative to Crop Timing Relative to Weeds Weed Groups Controlled  
Brand Name (REI/PHI) Active Ingredient Before Transplanting Pre-emergence Post transplanting directed, shielded Post-emergence Pre-emergence Post-emergence Annual grass Small-seeded broadleaves Broadleaves Comments
Aim (12hr/0d) carfentrazone X   X     X     X  
Command 3ME (12hr/45d) clomazone   X     X   X X X Do not use on pumpkins
Curbit EC (24hr/-) ethalfuralin   X X   X          
Dacthal products (12hr/-) DCPA     X X X   X     Cantaloupe/Watermelon only
Dual Magnum (12h/30d) s-metolachlor X X X   X   X X   Pumpkins only, Between rows
Gramaxone (12hr/-) paraquat X X X     X X X X Restricted use
League imazosulfuron     X X X X   X X Cantaloupe/Watermelon only
Poast (12hr/14d) sethoxydim       X   X X      
Prefar 4-E (12hr/-) bensulide X X     X   X      
Prism (12hr/14d) clethodim X X X X   X X X X  
RoundUp and others (12hr/14d) glyphosate X X X X   X X X X  
Sandea and others (12hr/30 or 57d) halosulfuron X X     X X   X X Should not contact plants
Sinbar (12hr/70d) terbacil X X     X         Watermelon only
Strategy (12hr/45d) ethalfluralin + clomazone   X X   X   X X X Not on cantaloupe
Treflan products (12hr/30 or 60d) trifluralin     X   X   X X X  

Organic Products

  Timing and Application Location Relative to Crop Timing Relative to Weeds Weed Groups Controlled  
Brand Name (REI/PHI) Active Ingredient Before Transplanting Pre-emergence Post transplanting directed, shielded Post-emergence Pre-emergence Post-emergence Annual grass Small-seeded broadleaves Broadleaves Comments
Corn Gluten Meal   X X     X     X X  
Summerset Alldown acetic/citric acid X X X     X X X X  
Weed Zap cinnamon/clove oil X X X     X X X X  
Worry Free citrus oil X X X     X X X X  

REI = Re-entry Interval (the time required to wait before people can enter field after spraying)
PHI = Post-Harvest Interval (the time required between the last spray and harvest)

Note: The information provided is not an endorsement or recommendation for any particular product. Always read the label before applying and follow the directions. Some of these materials may be tank mixed with other herbicides.