Chemical Quick Facts - T/I 2.5G Pre-Emergent Herbicide

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Chemical Quick Facts - T/I 2.5G Pre-Emergent Herbicide

Quali-Pro's T/I 2.5G Pre-Emergent Herbicide provides up to 8-months of selective control of more than 100 broadleaf weeds and grasses with a single application. It is performance-proven on field and container grown ornaments.

T/I 2.5G Pre-Emergent Herbicide Quick Facts

Active Ingredients

Trifluralin 2%
Isoxaben 0.5%


50 pound bag

Effective Against

Barnyardgrass, Bittercress, Common chickweed, Foxtail, Goosegrass, Groundsel, Marestail, Oxalis, Ragweed, Spurge

Use Sites

Nursery, Landscape, Non-crop areas, Ornamentals, Conifer Trees

Mode of Action

Pre-emergent herbicide combining a cellulose biosynthesis inhibitor to control broadleaf weeds and a seedling growth inhibitor(dinitroaniline) herbicide.

Additional Information

Application Instructions
Since T/I 2.5 G has no postemergence activity against emerged weeds, use cultivation or apply post-emergence herbicides to control emerged weeds. Remove or incorporate all weed residue, prunings, crop residue, or other plant trash before application of T/I 2.5 G. Make sure the soil surface is free of clods and smooth when application is made. If wind conditions favor drift at the time of application, do not apply T/I 2.5 G because drift of granules outside the treated area may result in injury to non-target plants. 

Equipment Modifications for Improved Application of T/I 2.5 G 
For drop-type spreaders, more uniform granule distribution will result when a splashboard is mounted under the hopper. 

Also for drop-type spreaders, fasten a chain to the side of the spreader and allow it to drag on the soil surface to mark the edge of the treated swath and help prevent skips or overlaps. 

To treat small areas or rows of nursery stock or ornamental beds, use a handheld or push-type rotary applicator such as a whirlybird or cyclone unit. Whenever hand-held units are used, walk and turn the crank at a constant rate of speed. 

For small areas difficult to treat with a drop-type or rotary spreader, use a shakertype applicator made from a small container with holes punched in the bottom. Carefully measure the amount of product needed to avoid over application. 

Spreader Settings 

Spreader settings are approximate and can vary with ground speed, pattern, adjustments, wear, and changes in the manufacturing of the equipment. Therefore, you should ALWAYS calibrate your spreader before applying any product.

Contact your Automatic Supply representative or stop by any location to take advantage of special pricing during the month of March!