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Discus L Insecticide

Discus L Insecticide is an effective systemic insecticide that delivers fast knockdown and long-term residual control of a wide range of pests on ornamentals and non-bearing fruit and nut trees. It also becomes rainfast within 2 hours, ensuring reliable performance even under unpredictable weather conditions.

As low as $358.61
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Discus L Insecticide Product Page
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Price as of
04/22/26
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Discus L Insecticide, manufactured by OHP, is a flexible, long-term insecticide solution that controls a broad-spectrum of pests that threaten ornamental and non-bearing fruit and nut tree crops in greenhouses and nurseries.

This insecticide concentrate provides fast knockdown of active pests and translaminar activity, meaning the product penetrates the leaf surface to control insects feeding on both the upper and lower sides of leaves such as ants, billbugs, and more. It is also low-odor, making it easier to work with in enclosed greenhouse environments.

Discuss L Insecticide combines speed, longevity, flexibility, and ease of use a combination that’s hard to beat for greenhouse and nursery owners facing one or multiple types of ornamental and non-bearing fruit and nut tree pests. From its broad-spectrum activity and dual application methods to its residual control and rainfast reliability, Discus L is built to meet the real-world needs of growers.

Tools Needed

You will need a soil injector tool, chemigation system, handheld pump sprayer, or backpack sprayer.

How to Use

  • Step 1: Determine how much Discus L Insecticide to use by measuring the square footage of the treatment area. Find the square footage by measuring the treatment area's length and width in feet, then multiply them together (length X width = square footage). For acreage, take the square footage and divide it by one acre (square footage / 43,560 sq. ft. = acres). For foliar applications to ornamentals grown in nurseries and greenhouses, apply 1/4 or 1/2 fl. oz. of Discus L Insecticide per 1 gallon of water. Refer to the product label for specific application rates and restrictions. 
  • Step 2: Fill the sprayer with half the amount of water, add the proper amount of product, and pour in the remaining half of the water. Close the tank lid and shake until well-mixed. 
  • Step 3: Spray thoroughly until the foliage, including the top and bottom of leaves are wet. Do not spray to the point of runoff. 

Where to Use

Discus L Insecticide can be used on ornamentals and non-bearing fruit and nut trees in greenhouses and nurseries. 

Do not apply this product, by any application method, to linden, basswood, or other Tilia species.

When to Use

Apply at the first sign of pest activity or before they become present. 

Safety Information

Discus L Insecticide is safe for people and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product. 

Special Considerations

Application to trees already heavily infested may not prevent the eventual loss of the trees due to existing pest damage and tree stress.

More Information
Restricted Use No
Shipping Restrictions AK, CT, IN, MN, MS, NC, TN, VT, WI, WY
Availability Online
Signal Word CAUTION
Keith's Pro Tip "Water deeply and infrequently, and avoid over-fertilization to strengthen natural defenses for foliage to better prevent pests."
Time to Kill Discus L Insecticide will control pests within 14-28 days.
Chemical Type Insecticide
Formulation Suspended Concentrate
Application Methods Broadcast Spray
Product Drawbacks This pesticide is highly toxic to bees exposed to direct treatment or residues on blooming crops/plants or weeds.
Active Ingredient Cyfluthrin 0.70% Imidacloprid 2.94%
Application Equipment Backpack Sprayer, Pump Sprayer, Spray Rig
Mix Rate For foliar applications to ornamentals grown in nurseries and greenhouses, apply 1/4 or 1/2 fl. oz. of Discus L Insecticide per 1 gallon of water.
Use Sites Outdoors
Yield Coverage will vary.
EPA Registration No. 59807-18
Shelf Life Discus L Insecticide will last for 3 years when stored in a dry, clean area.
Children or pets? No
Property Characteristics Food-Bearing Plants
AvailabilityOnline
Restricted UseNo
BrandOHP
Keith's Pro Tips"Water deeply and infrequently, and avoid over-fertilization to strengthen natural defenses for foliage to better prevent pests."
Product DrawbacksThis pesticide is highly toxic to bees exposed to direct treatment or residues on blooming crops/plants or weeds.
Target PestsAdelgids, Ants, Aphids, Armored Scales, Armyworm, Asiatic Garden Beetle, Asiatic Garden Beetle (Larvae), Azalea Caterpillar, Bagworm, Billbugs, Black Turfgrass Ataenius, Boxelder Bug, California Oakworm, Cankerworms, Crickets, Earwigs, Elm Leaf Beetle, Elm Spanworm, Eucalyptus Longhorned Borer, European Chafer, European Chafer (Larvae), Flatheaded Borers, Fungus Gnat (Larvae), Fungus Gnats, Grasshoppers, Green June Beetle, Grubs, Gypsy Moth (Larvae), Japanese Beetle (Adult), Japanese Beetle (Larvae), June Beetles, Lace Bugs, Leaf Beetles, Leaf Feeding Beetles, Leafhoppers, Leafminers, Masked Chafer, Masked Chafer (Larvae), May Beetles, Mealybugs, Mole Crickets, Oriental Beetle, Oriental Beetle (Larvae), Pillbugs, Pine Shoot Moths, Pine Tip Moths, Pine Tip Moths (Larvae), Plant Bugs, Psyllids, Redhumped Caterpillar, Root Mealybugs, Root Weevils, Rose Midge, Roseslug, Royal Palm Bug, Sawflies (Larvae), Scale Insects, Sod Webworms, Soft Scales, Southern Masked Chafer, Spittlebugs, Striped Oakworms, Tent Caterpillars, Thrips, Ticks, Tussock Moths (Larvae), Walnut Caterpillar, Webworms, Weevils, White Grubs (Larvae), and Yellownecked Caterpillar.
Application EquipmentBackpack Sprayer, Pump Sprayer, Spray Rig
Application MethodsBroadcast Spray
Active IngredientCyfluthrin 0.70% Imidacloprid 2.94%
Product TypeInsecticide
FormulationSuspended Concentrate
Application RateFor foliar applications to ornamentals grown in nurseries and greenhouses, apply 1/4 or 1/2 fl. oz. of Discus L Insecticide per 1 gallon of water.
Shelf LifeDiscus L Insecticide will last for 3 years when stored in a dry, clean area.
YieldCoverage will vary.
Use SitesOutdoors
Time to KillDiscus L Insecticide will control pests within 14-28 days.
EPA Registration #59807-18

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