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  5. Merck Grenade ER Premise Insecticide, 8oz


Merck Grenade ER Premise Insecticide, 8oz

Item: IWM013190
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GRENADE® ER INSECTICIDE. Contains lambda-cyhalothrin in a unique extended release micro-encapsulated liquid for broad spectrum pest control. Read and follow all label directions and precautions. Kills a broad range of pests, including ants, bees, confused flour beetles, flies, lesser grain borers, mosquitoes, fleas, red flour beetles, saw-toothed grain beetles, wasps, crickets, pill bugs, scorpions, spiders and ticks.

Key Advantages

  • Provides three months of premise protection1
  • Microencapsulation delays breakdown of active ingredient1
  • Effective on difficult-to-treat surfaces (vinyl, cement, other porous materials)1
  • Contains lambdacyhalothrin, the most powerful insecticide available in a premise spray1
  • Twice the bioactivity of other common insecticides1

Useful Information

It is a violation of Federal law to use this product in a manner inconsistent with its labeling.


Not for use on plants being grown for sale or other commercial use, or for commercial seed production, or for research purposes. For use on plants intended for aesthetic purposes or climatic modification and being grown in interior plantscapes, ornamental gardens or parks, or on lawns or grounds.

  • Do not apply directly to impervious horizontal surfaces such as sidewalks, driveways, and patios except as a spot or crack-and-crevice treatment. During application, do not allow pesticide to enter or runoff into storm drains, drainage ditches, gutters or surface waters.
  • All outdoor applications must be limited to spot or crack-and-crevice treatments only, except for the following permitted uses:
    • 1. Treatment to soil or vegetation around structures;

      2. Applications to lawns, turf, and other vegetation;

      3. Applications to building foundations, up to a maximum height of 3 feet above grade;

      4. Applications to underside of eaves, soffits, doors, or windows permanently protected from rainfall by a covering, overhang, awning, or other structure;

      5. Applications around potential pest entry points into building, when limited to a surface band not to exceed one inch in width;

      6. Applications made through the use of a coarse, low-pressure spray to only those portions of surfaces that are directly above bare soil, lawn, turf, mulch or other vegetation, as listed on the label, and not over an impervious surface, drainage or other condition that could result in runoff into storm drains, drainage ditches, gutters, or surface waters, in order to control occasional invaders or aggregating pests.

  • Do not water the treated area to the point of runoff.
  • Do not make applications during rain.
  • Do not apply directly to sewers or drains, or to any area like a gutter where drainage to sewers, storm drains, water bodies, or aquatic habitat can occur, except as directed by the label.

This product is restricted for use in the State of New York.


For use as a surface, crack-and-crevice, or spot treatment in, on, and around buildings and structures and their immediate surroundings, and on modes of transport. Permitted areas of use include, but are not limited to, aircraft (cargo and other non-cabin areas only), apartment buildings, boiler rooms, buses, closets, correctional facilities, decks, entries, factories, fencing, floor drains (that lead to sewers), food granaries, food grain mills, food manufacturing, processing and serving establishments; furniture, garages, garbage rooms, greenhouses (non-commercial), hospitals, hotels and motels, houses, industrial buildings, laboratories, livestock/poultry housing, landscape vegetation, locker rooms, machine rooms, mausoleums, mobile homes, mop closets, mulch, nursing homes, offices, patios, pet kennels, porches, railcars, restaurants, storage rooms, schools, sewers (dry), stores, trailers, trees, trucks, utility passages, vessels, vestibules, warehouses, wineries and yards.

For indoor applications, retreat at 21-day intervals or as necessary to maintain control.

Mixing Instructions

Grenade® ER Insecticide is intended for dilution with water for application using hand-held or power-operated application equipment as a coarse spray for crack-and-crevice or spot and surface treatments. Application equipment that delivers low volume treatments, such as the Micro-Injector® or Actisol® applicator, may also be used to make crack-and-crevice or spot and surface treatments. Fill applicator tank with the desired volume of water and add Grenade® ER Insecticide. Close and shake before use in order to ensure proper mixing. Shake or re-agitate applicator tank before use if application is interrupted. Mix only amount required. A surface treatment of Grenade® ER Insecticide may be applied by using a paintbrush or other porous applicator attached to a handle.

Tank Mixing

Grenade® ER Insecticide may be tank mixed with other currently registered pesticides unless expressly prohibited by the product label. To ensure compatibility, conduct a small volume mixing test with the other products. If mixed with sanitizers, add Grenade® ER Insecticide to the tank first. If other chemicals are added to the applicator tank, add Grenade® ER Insecticide last. If mixed with EC formulations, use within 24 hrs. Fill tank to desired volume and continue to agitate while making applications.

Grenade® ER Insecticide may be tank mixed with an Insect Growth Regulator (IGR) such as Archer® Insect Growth Regulator.

Observe all restrictions and precautions which appear on the labels of these products.


    If on skin or clothing

  • Take off contaminated clothing.
  • Rinse skin immediately with plenty of water for 15-20 minutes.
  • Call a poison control center or doctor for treatment advice.

    If in eyes

  • Hold eye open and rinse slowly and gently with water for 15-20 minutes.
  • Remove contact lenses, if present, after the first 5 minutes, then continue rinsing eye.
  • Call a poison control center or doctor for treatment advice.

    If swallowed

  • Call a poison control center or doctor immediately for treatment advice.
  • Do not give any liquid to the person.
  • Do not induce vomiting unless told to do so by the poison control center or doctor.
  • Do not give anything by mouth to an unconscious person.

    If inhaled

  • Move person to fresh air.
  • If person is not breathing, call 911 or an ambulance, then give artificial respiration, preferably by mouth-to-mouth, if possible.
  • Call a poison control center or doctor for further treatment advice.

Have the product container or label with you when calling a poison control center or doctor, or going for treatment.

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