Bacillus thuringiensis (Bt) - Biological Insecticide for Bulk Supply

While Bacillus thuringiensis (Bt) is a top-tier biological solution, it has a few practical limitations to keep in mind:
Sunlight Sensitivity: Direct sunlight can break down the active ingredients, which may shorten the protection period on the leaf surface.
Highly Selective: It only kills specific target larvae; it won’t work on other pests like aphids or mites.
Must Be Eaten: It isn’t a “contact spray.” Pests must actually eat the treated leaves for the product to work.
Not an Instant Kill: While pests stop eating almost immediately, it usually takes 2 to 3 days for them to fully perish.

No, Bacillus thuringiensis (Bt) is widely recognized as safe for humans. Its active crystal proteins are specifically designed to bind to alkaline midgut receptors found only in certain insect larvae.
Because human stomachs are highly acidic and lack these specific receptors, the toxins cannot be activated or cause harm. It is so safe that it can be applied to edible crops up to the day of harvest without risk to consumers, pets, or farm workers.

Bacillus thuringiensis (Bt) is highly effective against a wide range of leaf-eating larvae, particularly those in the Lepidoptera (moth and butterfly) family.
Key targets include destructive pests such as Caterpillars, Cabbage Loopers, Tomato Hornworms, Armyworms, and Bagworms. Specific strains like Bti also target the larvae of mosquitoes and black flies.
Because it targets the alkaline gut of these specific insects, it remains completely harmless to beneficial bugs like bees and ladybugs.

The choice depends on your specific pest pressure and environmental goals.
Bacillus thuringiensis (Bt) is the ultimate “specialist”—it targets only specific larvae (like caterpillars) while being 100% safe for bees and beneficial insects.
Spinosad is a “broad-spectrum” alternative that kills a wider variety of pests, including beetles, thrips, and leafminers. However, Spinosad can be toxic to bees when wet, requiring careful evening applications.
If you have a targeted caterpillar problem, Bt is the safer, more eco-friendly choice.

Yes, you can safely eat fruits and vegetables treated with Bacillus thuringiensis (Bt). One of its greatest advantages is that it has a “zero-day” pre-harvest interval (PHI), meaning you can spray your crops and harvest them on the same day.
Because Bt is a naturally occurring soil bacterium that only affects specific insect larvae, it leaves no toxic residues on food.
For the best taste and hygiene, we simply recommend giving your produce a quick rinse with water before eating, just as you would with any garden-grown harvest.

Bacillus thuringiensis (Bt) starts working almost immediately after a pest eats it. Within minutes, the insect’s digestive system is paralyzed, causing it to stop feeding and stop damaging your plants.
While the pest stops eating right away, it usually takes 2 to 3 days for the insect to actually die. Because it works from the inside out, you won’t see an instant “knockdown” like chemical sprays, but your crop protection begins the moment the pest takes a bite.

Yes, heavy rain or overhead irrigation will wash Bacillus thuringiensis (Bt) off your plants. Since it stays on the surface of the leaves and does not soak into the plant tissue, water easily removes the protective coating.
If it rains shortly after you spray, you should re-apply the product once the leaves are dry. For the best results, try to apply it when at least 24 to 48 hours of dry weather is expected to give the pests enough time to eat it.

On plant leaves, Bacillus thuringiensis (Bt) usually lasts for 3 to 7 days. Sunlight breaks it down quickly, so its effectiveness drops after a few days of bright sun.
In the soil, Bti can stay active for much longer—often for several weeks or even months. However, while the spores remain in the soil, they often sink or get covered by organic matter, which means they may no longer reach the larvae they are meant to kill.
For best results, re-application is usually needed after heavy rain or during peak pest seasons.

No, Bacillus thuringiensis (Bt) is not harmful to bees, butterflies, or other beneficial insects.
It is very specific and only affects the larvae of certain pests like caterpillars or mosquitoes when they eat it.
Unlike many chemical pesticides, Bt does not poison the nectar or pollen that bees collect. This makes it one of the safest options for pest control in gardens and farms where pollinators are active.

You should avoid spraying Bacillus thuringiensis (Bt) in direct, bright sunlight. UV rays from the sun quickly break down the active proteins, which makes the product much less effective.
For the best results, it is better to spray in the late afternoon or early evening. This allows the product to stay active on the leaves overnight when many pests are most active and feeding.
If you must spray during the day, choose a cloudy day to help the treatment last longer.

You should generally spray Bacillus thuringiensis (Bt) every 5 to 7 days as long as pests are active.
Because sunlight breaks down the product and new leaves grow quickly, regular timing is important to keep the plants protected.
If it rains heavily or if you use overhead sprinklers, you should re-apply it immediately after the plants dry.
For very high pest pressure, some growers spray every 3 to 4 days to ensure all new larvae eat the product.

No, they are not exactly the same.
Bt is the general name for the bacterium Bacillus thuringiensis.
Btk (Bacillus thuringiensis kurstaki) is a specific type or “strain” of Bt.
While there are many versions of Bt that target different pests, Btk is the one specifically used to kill leaf-eating caterpillars like cabbage loopers and bagworms.
Most garden sprays for caterpillars are actually Btk.

It is much better to spray Bacillus thuringiensis (Bt) in the late afternoon or early evening.
Sunlight contains UV rays that destroy the active ingredients very quickly. By spraying in the evening, the product stays strong on the leaves all night long. This gives pests more time to eat it, as many caterpillars feed most heavily during the night or at dawn.
If you spray in the morning, the midday sun may weaken the product before the pests can consume enough of it.

Bacillus thuringiensis (Bt) controls specific types of larvae depending on the strain you use.
The most common version, Btk, kills leaf-eating caterpillars like Cabbage Loopers, Tomato Hornworms, Tent Caterpillars, and Gypsy Moths.
Another version, Bti, is used to control Mosquitoes, Black Flies, and Fungus Gnats in water or soil.
It only works on insects that go through a larval stage and have a specific gut type. It will not harm “good” bugs like ladybugs, spiders, or honeybees.

You should apply Btk when you first see small caterpillars or notice feeding damage on leaves. It works best on young, small larvae because they eat more actively and are easier to kill than older ones.
For the best timing during the day, spray in the late afternoon or evening to prevent the sun from breaking down the product. Also, make sure to apply it when the weather is dry so it does not wash off immediately.

In its original bottle, Bt usually stays effective for 2 to 3 years if stored correctly. Liquid versions tend to expire faster than dry powders.
To make it last as long as possible, keep the bottle in a cool, dry place away from direct sunlight and extreme heat or freezing temperatures.
If the liquid develops a very strange smell or thick clumps that won’t mix when shaken, it has likely lost its strength and should be replaced.

Yes, you can safely eat vegetables sprayed with Bacillus thuringiensis (Bt). It has a “zero-day” pre-harvest interval, which means you can harvest and eat your crops on the same day you spray them.
Because Bt is a natural bacterium that only affects the specific gut type of certain insects, it is non-toxic to humans. It leaves no harmful residues, though it is always a good idea to wash your vegetables with water before eating to remove any dust or spray film.

Мы являемся производителем. Наше производство расположено среди живописных ландшафтов автономного района Нинся. Имея годовую производственную мощность 100 000 тонн, мы сердечно приглашаем вас посетить наш завод.

Конечно, мы будем рады предоставить образцы по запросу. Как только мы получим ваш запрос, мы оперативно организуем отправку вам образцов.

Наш стандартный минимальный заказ составляет 1 килограмм.

Как правило, наши условия оплаты составляют 30% TT заранее, а оставшаяся сумма 70% TT — против копии BL. Мы также принимаем аккредитив по предъявлении.

Конечно, мы приветствуем и принимаем запросы OEM!

Мы придаем огромное значение качеству нашей продукции. Чтобы гарантировать это, наша команда контроля качества активно участвует на каждом этапе производственного процесса. Перед отправкой каждая партия нашей продукции проходит тщательное тестирование, включая ВЭЖХ. Кроме того, компании SGS или PONY проводят предотгрузочные проверки, чтобы гарантировать качество нашей продукции.

Будьте уверены, мы будем держать вас в курсе вашего груза. Подробная информация, включая упаковку, номер отслеживания, фотографии загрузки и отгрузочные документы, будет незамедлительно отправлена на вашу электронную почту.

Общий срок доставки составляет 7-10 дней при условии наличия товара на складе. В противном случае организация доставки может занять от 10 до 15 дней.