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Left: Bacillus thuringiensis subsp. kurstaki cells replicating in fermentation.
Right: Electron microscope view of a Bt protein toxin. DiPel’s unique blend of four different protoxins plus Bt spores provides powerful lepidopteran control.

DiPel® is a biological insecticide containing the naturally occurring microorganism Bacillus thuringiensis subspecies kurstaki (Btk). For the manufacture of DiPel, VBC selected a proprietary, high yielding Btk strain (ABTS-351). Globally, DiPel has become a cornerstone insecticide in many IPM programs as it offers high quality, cost-effective, broad-spectrum caterpillar control on more than 200 crops, including vegetables, fruits, nuts, vines, cotton, oil palm, and corn. Specific registrations vary by country.

The active ingredient in DiPel consists of an optimized blend of four potent Bt protein toxins and a spore. Many other Bt strains lack the volume and balance of Bt toxin proteins that DiPel delivers. Bt subsp. kurstaki toxins have distinct modes of action unlike any chemical insecticide, providing a perfect tool for insect pest control programs which employ tank mix or rotation for insecticide resistance management. DiPel has never shown cross-resistance with any chemical insecticide.

DiPel biological insecticide is non-toxic to pollinators and other beneficial insects.

Multiple Benefits of DiPel

Consistent Performance
The value of DiPel begins with effective and consistent in-field performance. DiPel is produced with exacting quality control based on pharmaceutical grade standards. Every lot of DiPel is tested multiple times during manufacturing to make sure it meets the performance standards growers expect in the field.

Low Impact on Workers and the Environment
With its highly specific activity and natural origin, DiPel does not harm important beneficial insects such as bees for pollination, insect predators, and parasites used in control of other insect pests. DiPel is also not harmful to humans, wildlife or the environment, providing growers with much-needed flexibility.

Every lot of DiPel is tested on over 2000 lepidopteran larvae at various stages in manufacturing.

Resistance Management
The multiple modes of action present in DiPel have made it the premier insect resistance management tool for more than 40 years.

Harvest and Residue Management
DiPel can be applied up to the time of harvest and is exempt from residue tolerance (zero PHI, regional regulations may vary). This makes DiPel a critical tool during periods of multiple harvests and for late-season applications, enabling a program that meets the most exacting Maximum Residue Level (MRL) demands.

DiPel biological insecticide is non-toxic to pollinators and other beneficial insects.
Every lot of DiPel is tested on over 2000 lepidopteran larvae at various stages in manufacturing.

Using DiPel in a Program with Other Insecticides

The flexibility of DiPel and the unique set of benefits it brings at different points in the crop production cycle make it an ideal partner in an integrated program for control of lepidopteran pests. A few widely used examples:

DiPel for use with XenTari®
DiPel is often used as a rotation partner with XenTari, another Bt product from Valent BioSciences. XenTari is based on different subspecies of Bt, Bt aizawai (Bta), which has been proven to be exceptionally effective against key pests such as armyworms and diamondback moth.

DiPel for use with Synthetic Pyrethroids
Given their complementary modes of action, DiPel and synthetic pyrethroid insecticides work well together. DiPel disrupts caterpillar gut functions thereby reducing detoxification of ingested chemical insecticides, while pyrethroids target the pests’ nervous system. Pyrethroids give broad spectrum insect control to larvae and adults of many insect species and are highly prone to resistance. DiPel is more specific in its spectrum of insect toxicity against caterpillars.

DiPel for use with IRAC Class 28 Products
The Insecticide Resistance Action Committee (IRAC) Class 28 products, which include the diamide chemistries, are among the most commonly used group of conventional insecticides. DiPel is a mainstay in a resistance management program to keep Class 28 products effective. Just a few years since their

Why VBC Bt Products Are Special

Bacillus thuringiensis (Bt) has a long history as an effective and selective insect control agent in agriculture. Quality Bt products are heavily relied upon in cropping systems ranging from organic to conventional, with an emphasis on sustainability and return on investment.

Thousands of strains of Bt bacteria exist. Some produce insecticidal proteins and a few of these have been selected and used to manufacture microbial insecticides.

Not all Bt products are of equal quality, however. There are significant differences among Bt strains and manufacturing processes by which they are produced.

Because different Bt protein toxins are more active against certain insects than others, the key to effective, broad spectrum control is having a blend of multiple toxins. VBC’s DiPel and XenTari brand Bt products contain a unique balance of multiple toxins and Bt spores that maximize efficacy against lepidopteran pests.

DiPel and XenTari are also manufactured under exacting quality control standards and are tested multiple times through out the manufacturing process. This rigorous approach to quality control ensures that every VBC product performs in the field.

Used properly for controlling caterpillar pests, DiPel performance  is on par with leading diamide chemistries.

introduction, resistance problems with Class 28 products have appeared in cabbages and tomatoes in Thailand, Philippines, Malaysia, and Brazil. It is common for growers to use DiPel in a program with Class 28 products, as DiPel biological insecticide has never shown cross resistance to any chemical insecticide given its unique, multiple modes of action.

DiPel is OMRI® listed and USDA National Organic Program (NOP) certified.

Always read and follow the label instructions when using any VBC product.


Dry Flowable Granule: DiPel® DF (Pro 2X)

The DF formulation is a state-of-the-art, dust free, water dispersible granular formulation loaded with the biological active ingredient, Btk strain ABTS-351. The dry formulation has exceptional stability and shelf life, and mixing properties providing growers with a stable biological insecticide alternative for IPM Programs and Insecticide Resistance Management.

The advanced formulation of DiPel DF suspends completely in water, keeping screens and nozzles from clogging and keeping application consistent.

The advanced formulation of DiPel DF suspends completely in water, keeping screens and nozzles from clogging and keeping application consistent.


Emulsifiable Suspension: DiPel® ES

In some cases growers prefer a liquid insecticide product. The ES is a stable, oil-carrier based formulation designed to pour smoothly and easily into the spray tank. This emusifiable suspension rapidly mixes with the spray tank contents. The formulation can be used over a wide range of spray volumes.

DiPel ES


Wettable Powder: DiPel® WP

A classic wettable powder biological insecticide product has been in the growers’ arsenal for many decades. The DiPel WP® is uniform in particle size, generating a nice suspension of the Btk active ingredient upon agitation in the spray tank. In some countries the WP is used in dusting applications in mixtures with sulfur to combine caterpillar pest control with additional plant disease management.