Krovar I DF Herbicide

Krovar I DF Herbicide

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Product Overview

Krovar I DF herbicide is a dispersible granule to be mixed in water and applied as a spray for selective control of weeds in citrus and for non-crop weed control. Krovar I DF controls many annual weeds, at the highest rates allowed, and controls certain perennial weeds.

Moisture is necessary to move the herbicide into the root zone of weeds. Best results are obtained if treatment is made to moist soil, and moisture is supplied by rainfall or sprinkler irrigation within two weeks after application. Weed control symptoms are slow to appear and may not become apparent until the herbicide has been carried into the root zone of the weeds by moisture. The degree and duration of control will vary with the amount of herbicide applied, soil texture, rainfall, and other soil and water management practices.

Note: Due to New California State restrictions, this Can Not be Sold in California.

Features and Specs

Active Ingredient Bromacil 40% Diuron 40%
Target pests Annuals: Barnyardgrass, Chickweed, Clovers (annual), Foxtail, Goatweed, Horseweed, Johnsongrass, Lettuce (wild), Mustard (wild), Nightshade (annual), Pigweed, Purslane, Ragweed, Thistle and others
Perennials: Bermudagrass, Drymary, Guineagrass, Milkweed vine (strangler), Quackgrass, Vines (seedlings)
Broad-leaf Weeds: Bahiagrass, Clovers (annual), Crabgrass, Goosegrass, Knapweed, Lambsquarter, Lettuce (prickly), Mustards, Pigweed, Ragweed, Rye, Sunflower, Vaseygrass and others
See Label for complete list
For use in Citrus and Non-Crop land
Pet safe Yes, if used as directed on Label
Formulation Professional Product
NOT FOR SALE TO CA (Restricted)
Shipping Weight 6.20 lbs
Manufacturer Envu (Formerly Bayer) (Mfg. Number: 43009)
EPA Registration 432-1551



Krovar I DF Herbicide is recommended for general weed control as follows: uncultivated non-agricultural areas (such as, airports, highway, railroad and utility rights-of-way, sewage disposal areas); uncultivated agricultural areas (non-crop producing, which includes: farmyards, fuel storage areas, fence rows, barrier strips); industrial sites (outdoor, such as, lumberyards, pipeline and tank farms).

Apply Krovar I DF Herbicide using a properly calibrated fixed-boom power sprayer. Use sufficient spray volume (minimum of 10 gallons per acre) to provide uniform coverage of the treated area and to allow proper dispersion and suspension of the product in the spray tank. All rates of Krovar I DF Herbicide are expressed for broadcast treatments. For band treatments, use proportionately less.

A maximum of 12 pounds active ingredient bromacil per acre per year is allowed. A maximum of 12 pounds active ingredient diuron is allowed per acre per year in areas of high rainfall or dense vegetation. A maximum of 8 pounds of active ingredient diuron is allowed in all other areas. Apply a maximum of two applications per year. The minimum retreatment interval is 90 days. Combination with other herbicides broadens the spectrum of weeds controlled. In addition, total vegetation control can be achieved with higher rates of Krovar I DF Herbicide plus residual-type companion herbicides. To improve the control of emerged weeds, add surfactant at 0.25% by volume.


Applications may also be made using a handgun sprayer. Use a spray volume of at least 40 gallons per acre to insure uniform coverage. For small areas, a hand sprayer or sprinkling may be used.

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How much Krovar I DF Herbicide per gallon of water?

Krovar I DF Herbicide is applied at 6-16 lbs (no more than 16lbs)  in no less than 10 gallons of water per acre (use sufficient water to uniformly cover the acre).

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What is the mix rate per gallon using Krovar I DF Herbicide?

Krovar I DF Herbicide is for use on non-crop land and citrus only and has been replaced with Krovar IVM. Krovar IVM is for non-cropland areas such as barrier strips, fence rows, fuel storage areas, pipelines, roadsides, tank farms, and railroad and utility rights-of-way and it does not offer one gallon dilution rates. It is applied per acre in 100 gallons agitating the tank continuously to keep the herbicide in suspension. 

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