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MONTEREY

Monterey B.T. Insecticide Concentrate RTU

Monterey B.T. Insecticide Concentrate RTU is a effective ready to use biological insecticide that controls worms and caterpillars infesting home gardens. 

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Monterey B.T. Insecticide Concentrate RTU Product Page
Min : 20.82 - Max : 20.82
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Price as of
04/19/26
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Monterey B.T. Insecticide Concentrate RTU, manufactured by Monterey, is a easy to use OMRI insecticide that kills worms and caterpillars damaging fruits, vegetables, and ornamentals in and around home gardens. 

Formulated with B.T. 9.83%, a naturally occuring bacterium that makes this product effective and environmentally friendly for homeowners with edible plants. 

Monterey B.T. Insecticide Concentrate RTU is a brilliant ready to spray insecticide that gives a natural pest control solution without harming benefical pests. 

Tools Needed

Monterey B.T. Insecticide Concentrate RTU comes ready to use with no other application tools necessary.

How to Use

  • Step 1: Shake the Monterey B.T. Insecticide Concentrate RTU well before use.
  • Step 2: Spray leaf surfaces thoroughly, top and bottom, for complete control. Shake regularly while spraying.

Where to Use

Monterey B.T. Insecticide Concentrate RTU can be used on fruits, vegetables, ornamentals and shade trees in and around the home garden. 

When to Use

Use the Monterey B.T. Insecticide Concentrate when worms or caterpillars are first noticed, then repeat at five (5) to seven (7) day intervals while they are active.

Reapply after heavy rains.

Safety Information

Monterey B.T. Insecticide Concentrate RTU 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 applying this product.

Special Considerations

Acceptable for use on edible plants up to the day of harvest.

More Information
Restricted Use No
Shipping Restrictions ND, WY
Availability Online
Signal Word CAUTION
Keith's Pro Tip "Watering the branches, stems, and leaves with irrigation once per week will help to wash away webbing, eggs, and encourage growth from leaf-feeding pests."
Time to Kill Monterey B.T. Insecticide Concentrate RTU will kill pests after they have ingested the material within several hours.
Chemical Type Insecticide
Formulation Ready-To-Use
Application Methods Spot Treatment
Product Drawbacks Monterey B.T. Insecticide Concentrate RTU must be eaten by worms or caterpillars to be effective.
Active Ingredient Bacillus thuringiensis subspecies kurstaki strain SA-12 solids, spores and Lepidopteran active toxin 9.83%
Application Equipment Gloves
Mix Rate N/A
Use Sites Outdoors
Yield 32 oz. of Monterey B.T. Insecticide Concentrate RTU coverage will vary.
EPA Registration No. 70051-113-54705
Shelf Life Monterey B.T. Insecticide Concentrate RTU will last for 3 years when stored in a cool place. Activity may be impaired by storage at temperatures above 90ºF.
Comparable Products Monterey B.T. Insecticide Concentrate
Children or pets? No
Property Characteristics None
AvailabilityOnline
Restricted UseNo
BrandMONTEREY
Keith's Pro Tips"Watering the branches, stems, and leaves with irrigation once per week will help to wash away webbing, eggs, and encourage growth from leaf-feeding pests."
Product DrawbacksMonterey B.T. Insecticide Concentrate RTU must be eaten by worms or caterpillars to be effective.
Target PestsCabbage Looper, Armyworms, Hornworms, Lepidopteran (moth), Bagworm, Spring Cankerworm, Fall Cankerworm, Gypsy Moth, Tent Caterpillar, Elm Spanworm, and Fall Webworm.
Application EquipmentGloves
Application MethodsSpot Treatment
Active IngredientBacillus thuringiensis subspecies kurstaki strain SA-12 solids, spores and Lepidopteran active toxin 9.83%
Product TypeInsecticide
FormulationReady-To-Use
Application RateN/A
Shelf LifeMonterey B.T. Insecticide Concentrate RTU will last for 3 years when stored in a cool place. Activity may be impaired by storage at temperatures above 90ºF.
Yield32 oz. of Monterey B.T. Insecticide Concentrate RTU coverage will vary.
Use SitesOutdoors
Time to KillMonterey B.T. Insecticide Concentrate RTU will kill pests after they have ingested the material within several hours.
Comparable ProductsMonterey B.T. Insecticide Concentrate
EPA Registration #70051-113-54705

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