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Monterey B.t. - Biological Insecticide for Organic Gardening - 1 Pint Concentrate - Apply Using a Sprayer Following Mix Instructions

4.6 4.6 out of 5 stars 6,719 ratings

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1 pint (16 oz.)
Concentrate
Item Form Spray
Item Weight 16 Ounces
Liquid Volume 16 Fluid Ounces
Brand Monterey
Specification Met USDA

About this item

  • INSECT KILLER - Designed for use on caterpillars and worm type insects, such as cabbage looper, bagworm, gypsy moth, fall cankerworm, elm spanworm, and more. Has no effect on birds, earthworms, or beneficial insects such as honeybees or ladybugs.
  • FOLIAGE PROTECTOR - Designed for use on a variety of plants, including broccoli, celery, cabbage, turnip greens, mustard greens, cauliflower, melons, lettuce, tomatoes, shade trees, ornamentals, and many more.
  • FOR ORGANIC GARDENING - OMRI Listed for Organic Gardening. Organic Material Review Institute reviews products to ensure a product complies with all organic standards under the USDA’s National Organic Program (NOP).
  • EASY TO APPLY - Product instantly mixes with water and should be applied using either a trigger spray bottle or pressure tank sprayer. Carefully read and use according to label directions.
  • QUICK ACTION - Insects eat treated foliage, then immediately stop feeding and damaging plants.

Customer ratings by feature

Durability
5.0 5.0
Easy to use
4.7 4.7
Easy to install
4.6 4.6
Value for money
4.6 4.6

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Monterey B.t. - Biological Insecticide for Organic Gardening - 1 Pint Concentrate - Apply Using a Sprayer Following Mix Instructions
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Price$24.99$41.48-28% $14.77
List:$20.49
-5% $25.63
List:$26.99
-25% $8.79
List:$11.79
Delivery
Get it as soon as Monday, Mar 25
Get it as soon as Wednesday, Mar 27
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Customer Ratings
Easy to use
4.7
4.2
4.7
4.0
4.6
Value for money
4.6
3.5
4.4
3.7
4.2
Scent
4.1
3.4
4.5
4.0
Sold By
OnlineSellingPartner
Amazon.com
Amazon.com
Amazon.com
Amazon.com
number of pieces
1
1
12
liquid volume
16 fluid ounces
128 fluid ounces
16 fluid ounces
32 fluid ounces
form
Spray
Liquid,Spray
Spray
Spray
Tablets
weight
16 ounces
1.24 pounds
2.5 pounds
0.11 kilograms

From the brand


Product Description

Monterey garden

Monterey: Your Home Gardening Resource!

Monterey Lawn and Garden Products is a subsidiary of Brandt Consolidated and a distributor of plant protection and fertilizer products. We are based in Fresno, in the heart of California’s agricultural region where we first emerged in 1963 as Monterey Ag Resources. Twenty-five years later, we established Monterey Lawn and Garden with the goal of offering home gardeners the same professional grade technology available to the ag industry. Now, as a member of the Brandt family of companies, we are able to offer new products to all our gardening customers. This growing line of Monterey products provides economical and effective solutions to yard and garden problems, and are properly registered and labeled to be sold to and used by the home gardener. We invite you to explore our products — they offer solutions for all types of gardeners and all types of gardening challenges. Spring, summer, fall and winter…it’s time to get gardening!

Gardening image

Monterey Lawn & Garden

Providing Solutions for the home gardener since 1988.

traditional and organic

ready to use

Grandpa and grandson gardening

Tomatoes image

We offer traditional and organic gardening products to make your garden a paradise.

Our ready-to-use organic pesticides make it easy to protect your houseplants from indoor pests.

Monterey strives to create quality products that help plants to thrive, and help family grow together.

Monterey - solutions for the home gardener since 1988.

Problems in your Lawn or Garden?  Find your Solution  Today!

Some of our most popular products are shown below. These products are for home gardening, have good reviews, and are easy to use. Many of our top products are OMRI listed for organic gardening. From Monterey to you: happy gardening!

Sluggo Monterey B.t. Insect Spray RTU Sluggo Plus Liqui-Cop RTS 70% Neem Oil
Sluggo Monterey B.t. Garden Insect Spray Sluggo Plus Liqui-Cop 70% Neem Oil
Customer Reviews
4.5 out of 5 stars
1,525
4.6 out of 5 stars
6,719
4.2 out of 5 stars
343
4.6 out of 5 stars
4,264
4.3 out of 5 stars
651
4.1 out of 5 stars
342
Organic Gardening
Home Gardening
Easy to Use
Good Reviews

Product information

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Monterey B.t. - Biological Insecticide for Organic Gardening - 1 Pint Concentrate - Apply Using a Sprayer Following Mix Instructions


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Customer reviews

4.6 out of 5 stars
4.6 out of 5
6,719 global ratings

Customers say

Customers like the quality, performance, and value of the pesticide. For example, they mention it's effective, works well, and is worth the money. That said, some complain about the scent.

AI-generated from the text of customer reviews

240 customers mention222 positive18 negative

Customers are satisfied with the performance of the pesticide. They mention that it works well, is easy to use, and is effective at controlling fungus gnats. They also say that it is economical and will go a long way.

"...broccoli and cauliflower especially and Monterey Bt is very effective at controlling them." Read more

"...I have noticed my tomatoes are looking better than ever since I started using this product am not sure if it the organic nutrients in this product..." Read more

"Worked like magic - took care of the oak worms within a week. Affected our tree but leaves started growing back 3-4 weeks later." Read more

"...I use this BTU product and it worked perfect." Read more

143 customers mention123 positive20 negative

Customers like the effect of the pesticide on innards. They say it stops worms, bagworms and caterpillars from devouring plants. Some say it works without killing the bugs. Overall, most are happy with the product's effectiveness.

"...and as long as we do it in the right timeframe, the bagworms are very minimal each year. I love that this is safe to use on edible plants...." Read more

"...I am very happy with this product and the end result which is a pest free yard and safe environment for our my grandchildren and my pets...." Read more

"...It is specific so it only kills caterpillars and does not kill anything else. I use it in conjunction with a physical barrier (insect netting)...." Read more

"...of this product and Pure Crop 1 and never experienced another caterpillar throughout the season, despite butterflies and moths landing on the plants..." Read more

58 customers mention49 positive9 negative

Customers like the value of the pesticide. They mention that it's the best value for their money, it goes a long way, and it'll do wonders for their garden. Some say that it saves their garden and kills all caterpillars. Overall, most are happy with the product's value and effectiveness.

"...that are no longer attack from tomato worms but either way well worth the money spent...." Read more

"...Good value for the money." Read more

"...And, the price is very reasonable, when you consider you can spray the plants and then eat veggies, peas, etc., the same day you treated the plant...." Read more

"...worth every penny." Read more

52 customers mention52 positive0 negative

Customers are satisfied with the safety of the product. They mention that it is nontoxic, does not harm plants, animals, or humans, and is safe for use in an organic garden. Some say that it has not hurt the plants at all.

"...I love that this is safe to use on edible plants. We buy several bottles of this each spring." Read more

"...this product and the end result which is a pest free yard and safe environment for our my grandchildren and my pets...." Read more

"...I also feel happy knowing this is a natural product and not harmful to my pets." Read more

"I love my bug free garden! All natural, so it is safe to use." Read more

27 customers mention27 positive0 negative

Customers find the pesticide easy to use. They say it has clear instructions on how to mix it, and it is simple to hook up to the sprayer. Customers also mention that it lasts all season and only a couple applications are needed.

"It was very easy to with good directions and it does work with out killing the bugs and stops them from coming back but make sure u read the..." Read more

"...Like that it is safe and used in organic farming, easy to apply with spray bottle (small tree)" Read more

"Easy to use ." Read more

"...The product is easy to use and will go a long way since it's in a concentrated solution. This was worth every penny!" Read more

20 customers mention20 positive0 negative

Customers are satisfied with the quality of the pesticide. They mention that it works great, it saves their squash plants, and it kills catapillars. Some say that it does not kill anything else. Overall, customers are happy with their purchase and recommend it to others.

"...It is specific so it only kills caterpillars and does not kill anything else. I use it in conjunction with a physical barrier (insect netting)...." Read more

"...It stopped them dead. No new nests for 2 months! Our tree continue to grow new leaves...." Read more

"...It also saved my squash plants." Read more

"...It saves all my brassica leaves and stops the caterpillars in their tracks...." Read more

12 customers mention12 positive0 negative

Customers are satisfied with the organic quality of the product. They mention that it is completely organic, safe, and used in organic farming. Customers are also happy that it's a natural product and not harmful to pets. Overall, customers are happy with the product's organic quality and find it to be an excellent product for organic farming, and a great natural pest control.

"...I also feel happy knowing this is a natural product and not harmful to my pets." Read more

"...It's nice to know this is organic since I have little kids. In the future, I am just going to spray at least once a week and prevent completely! :)..." Read more

"...Like that it is safe and used in organic farming, easy to apply with spray bottle (small tree)" Read more

"Like the fact that it is organic and it gets rid of the worms almost entirely on the first application, There may still be a few the next day but..." Read more

17 customers mention5 positive12 negative

Customers are dissatisfied with the scent of the pesticide. They mention that it has a terrible smell and stinks when applied.

"...I highly recommend this product. The only down fall is IT STINKS. The smell does go away. Make sure you do not spray when the wi d is blowing...." Read more

"...I use it to eliminate tomato worms. It does have a bad odor but it goes away when it dries so it’s not a problem for me." Read more

"...It has a very light scent when mixed, slightly opaque. Once dry, I can’t smell anything but bud. Make sure you keep the product cool...." Read more

"...Has a little bit of a stinky smell which dissipates quickly." Read more

Great for Medical Marijuana
5 Stars
Great for Medical Marijuana
If your here reading this it’s likely you have issues with worms. It may be too late to save your crop. Usually, unless you know about these pests, they have become well established in your plant(s) and have already wreaked havoc. As an experienced outdoor grower here are some tips. Lets start at the beginning... Keep your plants pruned and free of all dead and starting to die matter, ie yellow leaves. Continuously remove all the fan leaves after the plant has matured, leaving only a few where the buds will soon start appearing. This way, it will be easier to monitor for pests and the plant will be sending all nutrients to the flowering buds. I always water in the morning at first light and I give my plants a good quick, sharp shake to see what flys off. I also look 👀 closely to see if I see any telltale black droppings on the leaves as the buds appear. If I do, usually after the buds are well established, I check around the area thoroughly. Usually, they are hiding inside the bud and already 1/2 to 1 inch long. They grow extremely fast and if u see one there are likely more lurking around. However, if u have sprayed, they are going to die. If not, there may be time. Remove any u find and if there are only a few u have time to save your plant. Pull every bud, gently, apart and look down in there every day until you receive this product. For best results, here in central California, I start spraying once a week after I see the first little white hairs appear on the buds. I always spray at least an hour or two before the sun hits them so they don’t get burned. The first application, I literally drench them, making sure to get down into the center of the bud. Then after I clean my sprayer I go back and give them all a good shake and even whack the big buds with my hand to get the excess liquid off. Then once a week a less heavy application until a week before harvest although u can go all the way up until the day of. It has a very light scent when mixed, slightly opaque. Once dry, I can’t smell anything but bud. Make sure you keep the product cool. Label says loses potential if it gets above 90 degrees. Bad for people in Phoenix, lol. It could be 150 degrees in your mailbox. Best to order, taking temperature during shipping into consideration. The other popular pest for me is spider mites. I use Grow-Safe- developed in Israel for medical marijuana. It works great too. If u use these two products from the start your success rate will greatly improve and 90% of the pests will be avoided.
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Top reviews from the United States

Reviewed in the United States on August 23, 2023
Size: 1 pint (16 oz.)Style: ConcentrateVerified Purchase
3 people found this helpful
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Reviewed in the United States on November 27, 2023
Size: 1 pint (16 oz.)Style: ConcentrateVerified Purchase
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Reviewed in the United States on June 18, 2013
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Reviewed in the United States on September 19, 2023
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Reviewed in the United States on August 10, 2023
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Reviewed in the United States on November 3, 2023
Size: 1 pint (16 oz.)Style: ConcentrateVerified Purchase
Reviewed in the United States on March 8, 2024
Size: 1 quartStyle: ConcentrateVerified Purchase
Reviewed in the United States on May 3, 2022
Size: 1 pint (16 oz.)Style: ConcentrateVerified Purchase
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Top reviews from other countries

Rebecca E
5.0 out of 5 stars Perfect for organic vegetables!
Reviewed in the United Kingdom on December 2, 2016
Size: 1 pint (16 oz.)Style: ConcentrateVerified Purchase
4 people found this helpful
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