Bioinsecticide BTk/Bacillus Thuringiensis Kurstaki Powder

Short Description:

Bacillus thuringiensis kurstaki (Btk) is a group of bacteria used as biological control agents against lepidopterans. Btk, along with other B. thuringiensis products, is one of the most widely used biological pesticides due to its high specificity; it is effective against lepidopterans, and it has little to no effect on nontarget species. During sporulation, Btk produces a crystal protein that is lethal to lepidopteran larvae. Once ingested by the insect, the dissolution of the crystal allows the protoxin to be released. The toxin is then activated by the insect gut juice, and it begins to break down the gut.


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Product Detail

Product Tags


Bacillus thuringiensis kurstaki (Btk) is a gram-positive, rod-shaped bacterium native to the soil in a wide range of regions globally. A subspecies of Bacillus thuringiensis, Btk controls Lepidoptera.


Domain: Bacteria

Class: Bacilli

Family: Bacillaceae 

Phylum: Firmicutes

Order: Bacillales

Genus:  Bacillus


Product Name  Bacillus thuringiensis kurstaki
Appearance  Brown powder
Viable Count  16000IU/MG WP, 32 000 IU/MG WP
COA  Available
Usage  Spray
Scope of application  Corn, cabbage, tomato, etc.
Kind of disease prevented  European corn borer, cabbage looper, tomato hornworm, alfalfa caterpillar, and leafrollers, as well as pests on ornamental plants; tent caterpillar, fall webworm, etc.
Package  20kg/bag/drum, 25kg/bag/drum, or as you required
Storage  Store the container tightly closed in a dry & cool place. Do not expose to direct sunlight.
Shelf Life  12 months


Bacillus thuringiensis var. kurstaki (Btk) controls the larva stage (caterpillars) of certain moths and butterflies such as tomato and tobacco hornworm, cabbage worms, loopers, leaf rollers, bagworms, gypsy moths, tent caterpillar, fall webworm and others. Ingestion of the bacterium paralyzes the digestive system of the insect, and it stops feeding within hours. Bt affected insects usually die within several days of ingesting the bacteria. Since Btk is most effective on young, heavily feeding larvae, insect populations must be monitored to insure that the targeted insect is in the proper stage for optimum control. Btk will not control the larva stage of sawflies. Btk may be applied up to the day of harvest on a variety of food crops. This biological/microbial insecticide is available as a dust or in a liquid concentrate form.


1. Safe: non-toxic to humans and animals.

2. High selective: only harmful tothe target insects, do not harm natural enemies.

3. Eco-friendly.

4. No residues.

5. Pesticide resistance is not easy to occur.


How should I take bacillus thuringiensis kurstaki?


Payment terms

T/T(telex transfer), Western Union, MoneyGram, Credit card, PayPal,

Alibaba Trade Assurance, BTC(bitcoin), etc.

Lead time

≤100kg: within three working days after payment received.

100kg: one week




20kg/bag/drum, 25kg/bag/drum

or as you required.


Store the container tightly closed in a dry & cool place. 

Do not expose to direct sunlight.



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