← Back to Tersus® Insecticide product overview
Tersus is an insecticide designed to control listed insects, aquatic diptera larvae, fruit flies (including vinegar flies), house flies, mosquitoes, gnats, stable flies, fleas, poultry lice, and poultry mites. It can be applied to greenhouse and vegetable plants, hydroponic water systems, harvested produce, livestock, and poultry houses. Application methods include spraying plants, treating water systems, spraying or dipping harvested produce, spraying/dipping livestock, and spraying walls, nests, or birds with a fine mist.
| Location | Rate | Unit | Dilution | Label notes |
|---|---|---|---|---|
| Both | 3 | gallons/1,000 sq. ft. | 13.07 fl. oz. of concentrate with 100 gallons of water (conventional) or 0.1312 fl. oz. per gallon (handheld/backpack) | Do not exceed maximum application rate of .0012 lbs. a.i./1,000 sq. ft. or 0.39 fl. oz. of Tersus Insecticide/ 1,000 sq. ft. |
| Target pest | Location | Rate | Unit | Dilution |
|---|---|---|---|---|
| listed insects | Outdoor | 1 | gallon / 1,000 sq. ft. | 0.25 to 0.373 fl. oz. of Tersus Insecticide per gallon of water |
| Target pest | Location | Rate | Unit | Dilution | Label notes |
|---|---|---|---|---|---|
| aquatic diptera larvae | Indoor | 2.70 fl. oz. | per 10,000 gallons | 2.70 fl. oz. in 10,000 gallons | Concentration 0.1 ppm |
| aquatic diptera larvae | Indoor | 0.27 fl. oz. | per 10,000 gallons | 0.27 fl. oz. in 10,000 gallons | Concentration 0.01 ppm |
| aquatic diptera larvae | Indoor | 0.027 fl. oz. | per 10,000 gallons | 0.027 fl. oz. in 10,000 gallons | Concentration 0.001 ppm |
| Target pest | Location | Rate | Unit | Dilution | Label notes |
|---|---|---|---|---|---|
| Drosophila spp., Tephritid spp. Fruit Flies, Vinegar Flies and other nuisance pests | Both | five or six pints of diluted spray to a 2-ton load of produce | pints/2-ton load | 1 part with 900 parts water (1 pint per 125 gallons or 1 teaspoon per 10 pints water) | Apply liberally; spray between and beneath containers; spray raw stock stacked in yard; dip baskets in diluted spray |
| Target pest | Location | Rate | Unit | Dilution | Label notes |
|---|---|---|---|---|---|
| house flies, mosquitoes and gnats | Outdoor | up to 1 quart | per animal | 1.5 to 3 fl. oz. per gallon of water | Apply as wet the hair thoroughly with particular attention to emerging in large numbers. Repeat treatment at intervals of 5 to 12 days for small insect populations or when flies are emerging in large numbers. |
| stable flies | Outdoor | a quart | per animal | 2.5 to 4 fl. oz. per gallon of water | Apply to wet the hair thoroughly with particular attention to the legs, flanks, barrel, topline and other body areas commonly attacked by these flies. Repeat treatment each week as needed. |
| fleas | Outdoor | up to 1 quart | per animal | 9 fl. oz. per gallon of water | Wet animal and to obtain protection against fleas by dipping or spraying at the rate of up to 1 quart per animal. This product may also be used to reduce infestation, thoroughly spray the animal's bedding and sleeping quarters. Put fresh bedding in quarters after spray has dried. |
| Target pest | Location | Rate | Unit | Dilution | Label notes |
|---|---|---|---|---|---|
| poultry lice | Indoor | 1 gallon of diluted product | per 1,000 sq. ft. | 2.5 to 4 fl. oz. of concentrate per gallon of water | Spray walls and nests or cages thoroughly. Follow by spraying over the birds with a fine mist. |
| poultry mites | Indoor | 2.5 to 4 fl. oz. per gallon of water | Spray crevices of roost poles, cracks in walls and cracks in nests where the poultry mites hide. Follow by spraying over the birds with a fine mist. |
| For pests | Location | Amount | Per | Label notes |
|---|---|---|---|---|
| Greenhouse fruit, vegetable, flower and foliage plants | Both | 13.07 fl. oz. | 100 gallons | for applications with conventional sprayers |
| Greenhouse fruit, vegetable, flower and foliage plants | Both | 0.1312 fl. oz. | 1 gallon | for applications with handheld or backpack sprayers |
| Vegetable and truck gardens | Outdoor | 0.25 to 0.373 fl. oz. | 1 gallon | |
| Drosophila spp., Tephritid spp. Fruit Flies, Vinegar Flies and other nuisance pests | Both | 1 part | 900 parts water | 1 pint per 125 gallons or 1 teaspoon per 10 pints water |