Monterey B.t. Biological Insecticide

SKU: LG 6332

16.18 16.18 USD 16.18

0.00

Monterey B.t. is an effective natural caterpillar and worm-stage pest control that is safe for animals, people, and beneficial insects like honeybees and ladybugs.

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Monterey B.t. Biological Insecticide


Easy-to-mix liquid concentrate. Kills caterpillar-type insects, but has no effect on birds, earthworms, or beneficial insects such as honeybees and ladybugs when used as directed. Worm stage and caterpillars eat treated foliage, then immediately stop feeding and damaging plants. 

The active ingredient is bacillus thuringiensis, a bacteria found naturally in soils. This bacteria paralyzes the target pest's digestive system, causing them to stop feeding within a few hours of eating the product, and they will die within hours.

For use on fruits, vegetables, ornamentals, and shade trees. Can be used on edible plants up to the day of harvest. OMRI  listed for organic gardening.

How to mix and apply

Always shake or stir MONTEREY B.t. thoroughly before use. Partially fill the sprayer with water before adding the application rate amount of product, then mix in the product thoroughly and add the remaining amount of water.

Spray leaf surfaces thoroughly, top and bottom, for complete control. Agitate regularly while spraying. Use all of the spray mixtures within 24 hours.

Fruits & Vegetables

Mix 2 fluid ounces per 3 gallons of water (4 teaspoons per gallon) for a hand sprayer and apply it to all plant foliage to cover an area of 1,000 square feet. Apply at the first sign of infestation and repeat at weekly intervals when needed to maintain control of the following insects:

  • Cabbage Looper on broccoli, cauliflower, collards, kale, mustard greens, turnip greens, cabbage, celery, lettuce, melons, and tomatoes.
  • Imported Cabbage Worm on broccoli, cabbage, cauliflower, collards, kale, mustard greens, and turnip greens.
  • Tomato Hornworm on tomatoes.
Shade trees & Ornamentals

Mix 2 fluid ounces per 3 gallons of water (4 teaspoons per gallon) for a hand sprayer. Apply at the 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:

  • Bagworm
  • Fall Cankerworm
  • Tent Caterpillar
  • Fall Webworm
  • Spring Cankerworm
  • Gypsy Moth*
  • Elm Spanworm

*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.


Weight (lbs)1.20
Length (in)3.5
Width (in)2
Height (in)6.7
Barcode22179103900
UL ListedNo
Bug TypeCaterpillars, Worms
Application TypeLiquid
Product TypeInsecticide
OMRI CertifiedYes
Usage AreaOutdoor
ConcentrationConcentrated
Concentration RatioVaries
Ingredient BaseOrganic Based