Buy 2 or more: $20.21 each
Have a Question? Ask Our Pros!
Monterey B.t. RTU is a biological insecticide that controls worms and caterpillars on many fruits and vegetables, ornamental plants and trees. MONTEREY B.t. RTU kills caterpillar stage insects and worms, but does not hurt or effect earthworms, birds, or beneficial insects such as ladybugs and honeybees, when applied as directed. Caterpillars and worms eat treated foliage, then instantly stop eating and damaging the plants. It is for organic gardening and ORMI Listed so it is acceptable for use on edible plants up to the day of harvest.
Product Documents
| Active Ingredient | Bacillus thuringiensis subspecies kurstaki strain SA-12 solides, spores, and insecticidal toxins, ATCC # SD - 1323 9.83% |
|---|---|
| Target pests |
Armyworms, Bagworm, Cabbage Looper, Fall Cankerworm, Gypsy Moth, Hornworms,Tent Caterpillar and others * See label for complete list |
| For use in | Residential Gardens, Ornamental Plants and Shade Trees |
| Application |
Spray leaf surfaces thoroughly, top and bottom, for complete control Shake regularly while spraying |
| Pet safe | Yes, if used as directed on label |
| NOT FOR SALE TO | ME, ND, WY |
| Special Features |
For Organic Gardening OMRI Listed |
| Shipping Weight | 2.32 lbs |
| Manufacturer | Monterey Lawn & Garden (Mfg. Number: LG 6338) |
| EPA Registration | 70051-113-54705 |
FOR USE
Apply MONTEREY B.t. RTU when worms or caterpillars are first noticed, then repeat at five (5) to seven (7) day intervals while they are active. Apply more frequently to control heavy infestations. Apply thoroughly to top and bottom of foliage. Reapply after heavy rains.
MONTEREY B.t. RTU must be eaten by worms or caterpillars to be effective. After ingesting the insecticide, they immediately stop feeding, though they may otherwise appear to be unaffected for several days. Best results are obtained by treatments when worms are small; they must be actively feeding on treated, exposed foliage. You may apply MONTEREY B.t. RTU up to and on the day of harvest.
FRUITS AND VEGETABLES:
Spray all plant foliage. Apply at first sign of infestation and repeat at weekly intervals when needed to insects in the fruit and vegetable garden:
SHADE TREES & ORNAMENTALS:
Spray at first sign of infestation and repeat at weekly intervals when needed to maintain control. Apply to thoroughly cover all foliage surfaces of shade trees and ornamentals for control of the following leaf-feeding worms:
*Apply when buds swell, but before leaves are fully open. If eggs hatch over a long period of time or if reinfestation occurs, spray about 14 days after first appearance.
| 5 stars | 9 | |
| 4 stars | 0 | |
| 3 stars | 0 | |
| 2 stars | 0 | |
| 1 star | 0 |
Monterey. B.t. RTU
By Carol on 08/30/2015
Great for my Papaya trees
By Jerome on 09/28/2018
A couple of years ago I planted some Papaya trees. They got infested with some hornworm. I picked them off, but they kept coming back. I purchased the Monterey B.t RTU and it got rid of them. Use it every year and it works great.
Was this review helpful to you? YesNo
5 of 5 people found this review helpful
Save my broccoli
By Anne on 07/14/2017
It works
By Ron on 06/14/2019
Great Product
By Tim on 05/29/2020
You may apply Monterey B.t. RTU up to and on the day of harvest.
Was this answer helpful to you? YesNo
7 of 7 people found this answer helpful
Monterey B.t. RTU is not labeled for citrus fruit, including lemons.
We would recommend using Natural Guard Spinosad Landscape and Garden Insecticide instead. It is labeled for use on lemons and will kill caterpillars on the tree. One bottle will treat approximately 5300 square feet.
Was this answer helpful to you? YesNo
4 of 4 people found this answer helpful
Yes, Monterey B.t. RTU should kill all caterpillar types.
Was this answer helpful to you? YesNo
4 of 4 people found this answer helpful
I want to use several products to rid my home of fungus gnats. I have already applied neem oil, insecticidal soap, and placed sticky paper near soil. This is not taking care of the entire population. I just applied orange oil at 2 oz per gallon of water to all plant soils in my home and wanted to try BT as well. Will the orange oil lyse the cell wall of the beneficial BT bacteria?
If you are treating edibles you will need to let them dry out for a while as one of the biggest contributors to fungus gnat population growth is over watering/too wet of soil. You may need to contact Monterey Lawn & Garden to see if orange oil would interfere with anything in their specific formulation. If you are treating non edible plants you can try Talstar P Professional Insecticide and Gentrol IGR Concentrate to the soil to get some IGR going to stop the reproductive cycles.
Monterey B.t. RTU is applied when worms or caterpillars are first noticed, then repeat at five (5) to seven (7) day intervals while they are active. Apply more frequently to control heavy infestations. Apply thoroughly to top and bottom of foliage. Reapply after heavy rains.
Monterey B.t. RTU
Rating: 5 (9 Reviews / 7 Q&A)
