Katana Herbicide

Katana Herbicide, manufactured by PBI Gordon, is an effective post-emergent herbicide that delivers exceptional control of broadleaf and grassy weeds in warm-season turf. 

This selective water-dispersible granule rapidly absorbs into the weed leaves and moves throughout them, resulting in a stunt of growth within hours. Even when temperatures are cooler, it is highly selective against weeds like poa annua, dandelion, and lawn burweed. 

Katana Herbicide is an excellent broad-spectrum herbicide that delivers complete post-emergent control over 58 types of weeds. This product comes in a 5 oz container, which can go a long way as you only need a small amount to do much damage.

Tools Needed

You must mix the product into your chosen sprayer, such as a backpack, hose-end, or hand-pump sprayer. For the average job, a hand-pump gallon sprayer works best.

How to Use

• Step 1: Determine how much Katana Herbicide to use by measuring the square footage of your treatment area. To do this, measure the length and width of the treatment area in feet, then multiply them together (length x width = square footage). The typical rate to use Katana Herbicide is between 0.034-0.068 oz. per 1,000 sq. ft. or 1.5-3 oz. per acre. The rate varies depending on the weed you want removed. For example, if you want to get rid of Purple Nutsedge, the rate is 0.68 oz. per 1,000 sq. ft. in a gallon of water. For 3,000 sq. ft. you would need 2.04 oz. of Katana mixed in 3 gallons of water.
• Step 2: Fill your sprayer halfway with the appropriate amount of water. Based on your calculations, add the appropriate measured amount of Katana Herbicide and then fill it with the remaining half of the water. Close the sprayer lid and agitate until the solution is well mixed. 
• Step 3: Broadcast spray or spot treat based on the severity of your grassy weed problem, making sure to get even coverage via the fan spray setting. If weeds persist, reapply the product in 3 or 4 weeks and repeat as needed for full control all season long.

Where to Use

Katana Herbicide may be used on golf courses (fairways, roughs, greens, tees, collars, and approaches) and the following turf areas: industrial parks, tank farms, sod farms, seed farms, cemeteries, professionally managed sports fields, and commercial turf. Residential turf application is limited to a targeted, directed spray of weeds only.

When to Use

Early summer treatments are most effective for best results in the post-emergent control of grassy weeds. Late summer application (after August 15) to mature crabgrass can be very effective. Application in the middle of the summer, from July 15 to August 15, will prove less effective to older, drought-stressed grassy weeds.

Safety Information

Katana Herbicide is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product. 

Keep people and pets out of treated areas until sprays have dried. 

Special Considerations

Some ornamental shrubs, plants, and trees may be sensitive to Katana Herbicide. Do not make applications that would result in direct contact with sensitive plants.