Gain access to personalized product screening, the best pricing, rewards, and more!
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.
04/19/26
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.
| 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 |
| Availability | Online |
| Restricted Use | No |
| Brand | MONTEREY |
| 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 Drawbacks | Monterey B.T. Insecticide Concentrate RTU must be eaten by worms or caterpillars to be effective. |
| Target Pests | Cabbage Looper, Armyworms, Hornworms, Lepidopteran (moth), Bagworm, Spring Cankerworm, Fall Cankerworm, Gypsy Moth, Tent Caterpillar, Elm Spanworm, and Fall Webworm. |
| Application Equipment | Gloves |
| Application Methods | Spot Treatment |
| Active Ingredient | Bacillus thuringiensis subspecies kurstaki strain SA-12 solids, spores and Lepidopteran active toxin 9.83% |
| Product Type | Insecticide |
| Formulation | Ready-To-Use |
| Application Rate | N/A |
| 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. |
| Yield | 32 oz. of Monterey B.T. Insecticide Concentrate RTU coverage will vary. |
| Use Sites | Outdoors |
| Time to Kill | Monterey B.T. Insecticide Concentrate RTU will kill pests after they have ingested the material within several hours. |
| Comparable Products | Monterey B.T. Insecticide Concentrate |
| EPA Registration # | 70051-113-54705 |
*Price does not include freight. We guarantee our rate plus shipping will be less than anyone else's price.



