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ENVU (FORMERLY BAYER)

Forbid 4F Ornamental Insecticide Miticide

Forbid 4F Ornamental Insecticide Miticide is an insecticide/miticide with a unique mode of action. This makes it great for mites and insects that may have built up resistance to other common chemicals. Forbid 4F can remain effective for 45 days. Use it to control mite and whitefly infestations around ornamentals.

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Forbid 4F Miticide product page
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Price as of
02/07/26
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Forbid 4F Ornamental Insecticide Miticide, manufactured by Bayer, is a miticide used to control mites that are resistant to other pesticides. It can be sprayed directly onto the foliage of plants the mites are targeting to kill them.

This product delivers a quick knockdown and residual control of mites and all stages of whiteflies for four to eight weeks. Because Forbid 4F Ornamental Insecticide Miticide offers a unique mode of action, it will target mites and other listed pests that may build resistance to other products for effective control.

Forbid 4F Ornamental Insecticide Miticide is a highly effective insecticide and miticide that gives a quick knockdown against pests like mites and whiteflies on ornamental plants, recreational areas, and more. 

Tools Needed

You will need either a hose-end sprayer, handheld pump sprayer, backpack sprayer, or spray rig. For smaller sized residential treatments, we recommend a handheld 1-gallon pump sprayer or a 4-gallon backpack sprayer.

How to Use

  • Step 1: Determine how much Forbid 4F you will need by measuring the square footage of the treatment area. To do this, measure the treatment area's length and width in feet, then multiply them together (length x width = square footage). To get acres, take the square footage and divide by one acre (square footage / 43,650 sq. ft. = acreage). The use rate for Forbid 4F is 2 to 6 ml per 5 gallons of spray solution for mites and 3 to 6 mL in 5 gallons of water to treat whiteflies. Refer to the label for specific application rate and restrictions. 
  • Step 2: Once you have determined how much Forbid 4F you will need, fill your spray tank with halfway full of clean water and then add Forbid 4F according to your calculations. Fill with the other half of water and then agitate the sprayer until the product is well-mixed.
  • Step 3: Spray Forbid on infested plants, completely covering foliage. You can use a coarse spray, drench, or broadcast.

Where to Use

Forbid 4F Ornamental Insecticide Miticide can be used on ornamental plants in and around parks, golf courses, recreational areas, and residential or commercial buildings. It can be applied to shrubs, trees (including non-bearing fruit and nut trees), flowers and foliage plants in outdoor landscapes.

When to Use

For best results, treatments should be made when the whitefly or mite population begins to build and before a damaging population becomes established.

Safety Information

Forbid 4F Ornamental Insecticide Miticide is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product. 

Keep people and pets away from treated areas until the spray has dried. 

Special Considerations

Avoid excess application that results in runoff from plant foliage. You can apply a surfactant to improve coverage on hard to wet foliage.

More Information
Restricted Use No
Shipping Restrictions AK, DC, HI, NY, OH, WA
Availability Online
Signal Word CAUTION
Keith's Pro Tip "When applying Forbid 4F to treat mites, the earlier you apply, the better. Use this product to treat as soon as possible, as it is more effective on the younger stages of mites and whiteflies."
Target Pests Multi Blister Mites, Boxwood Spider Mite, Broad Mites, Cyclamen Mites, Euonymus Mite, False Spider Mites, Greenhouse Whiteflies, Honeylocust Spider Mite, Lewis Mite, Maple Spider Mite, Mite Eggs, Mite Nymphs, Rust Mite, Silverleaf Whitefly, Southern Red Mites, Spider Mites, Spruce Spider Mites, Sweet Potato Whitefly, Tarsonemid Mites, Tumid Mite, Two Spotted Spider Mite, Whiteflies, Whiteflies Eggs, Whitefly Nymphs
Time to Kill Forbid 4F will begin killing insects within hours of application but can take up to several days to get complete control.
Chemical Type Insecticide
Formulation Suspended Concentrate
Application Methods Spot Treatment
Product Drawbacks This product has a high concentration of active ingredient, so proper measurement is crucial.
Active Ingredient Spiromesifen 45.2%
Application Equipment Backpack Sprayer, Gloves, Hose End Sprayer, Pump Sprayer, Spray Rig
Mix Rate You can mix this product from 1.4 - 4 fl oz per 100 gallons of water. For more specific application rates please refer to the label.
Use Sites Outdoors
Yield One 16 oz bottle of Forbid can make 266 - 1142 finished gallons of product.
EPA Registration No. 101563-55
Shelf Life This product can last up to 2 years when stored in a cool, dry location.
Comparable Products Abamectin, Avid
Children or pets? No
Property Characteristics None
AvailabilityOnline
Restricted UseNo
BrandENVU (FORMERLY BAYER)
Keith's Pro Tips"When applying Forbid 4F to treat mites, the earlier you apply, the better. Use this product to treat as soon as possible, as it is more effective on the younger stages of mites and whiteflies."
Product DrawbacksThis product has a high concentration of active ingredient, so proper measurement is crucial.
Target PestsBlister mites, broad mites, flat mites, rust mites, spider mites (including twospotted, southern red, boxwood, spruce and euonymous mites), whiteflies (including sweetpotato, silverleaf, giant and greenhouse).
Application EquipmentBackpack Sprayer, Gloves, Hose End Sprayer, Pump Sprayer, Spray Rig
Application MethodsSpot Treatment
Active IngredientSpiromesifen 45.2%
Product TypeInsecticide
FormulationSuspended Concentrate
Application RateYou can mix this product from 1.4 - 4 fl oz per 100 gallons of water. For more specific application rates please refer to the label.
Shelf LifeThis product can last up to 2 years when stored in a cool, dry location.
YieldOne 16 oz bottle of Forbid can make 266 - 1142 finished gallons of product.
Use SitesOutdoors
Time to KillForbid 4F will begin killing insects within hours of application but can take up to several days to get complete control.
Comparable ProductsAbamectin, Avid
EPA Registration #101563-55

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