Acaricidal bacillus, also known as Bacillus cereus, is a microbial source, aerobic bacteria, low-toxic bacterial insecticide , and the active ingredient is Acariciid. Trade name: Bacillus licheniformis, moth-killing spirit. The main dosage form: wettable powder (containing more than 10 billion live spores / gram). It can control lepidopteran pests on a variety of crops, such as corn borer, cabbage caterpillar, diamondback moth, cabbage night moth, yellow curved beetle, moth, moth, moth, sweet potato moth, etc., but poisoned Slower. 2Pc Ball Valve,Floating Ball Valve,2Pc Floating Ball Valve,2Pc Stainless Steel Ball Valve Wenzhou Dico Valve Technology Co.,Ltd. , https://www.dicovalves.com
1. Product Features Abacillus sphaeroides is a group of Bacillus cereus isolated from the corpse of infected rice mites in China. It is an aerobic bacterium. It can grow and multiply on a variety of artificial media, suitable for growth temperature of 23 ° C ~ 32 ° C. The most suitable pH is neutral to weakly alkaline. The appearance of the product is grayish white or yellow powder, it has fishy smell, easy to absorb moisture, and has strong tolerance to high temperature. The prepared microbial agent can be stored for several years without losing virulence. It is non-toxic to humans and animals, has no phytotoxicity to crops, is safe for bees and natural enemies, but has high virulence to silkworms.
2. Insecticidal mechanism The active ingredient of Acariciids is the toxins and spores produced by bacteria. The pests are mainly stomachic and have a certain contact effect. Its mechanism of action is to enter the toxins produced by the bacterium of the bacterium and the digestive system of the bud parasitic insects, so that it stops eating. The parasporal crystals contained in the insects can quickly destroy the intestinal wall of the insect, causing poisoning, and the spores enter the blood of the pest. Massive breeding takes place, eventually killing insects from hunger and sepsis. In addition, in the process of sporulation, the tissues and organs that consume a large number of worms can also cause insects to die.
3. Application in vegetable production (1) Spraying 50-100 g of powder containing more than 10 billion live spores per gram of spray per acre, spraying 40-50 kg of water, controlling cabbage caterpillar, lamp moth larvae, moth Larvae, larvae, larvae, etc.; 100-150 grams of bacteria containing more than 10 billion live spores per acre, 40-50 kg of water spray, control Plutella xylostella larvae, Noctuidae larvae, yellow bells Wait.
(2) Using the self-made bactericidal bacillus liquid to prepare the bacillus bacillus preparation to control the pests, which can save certain control costs and fully exert the prevention and treatment effect of the bacillus. The specific method is: collecting dead insects in the field of spraying the Acaricidal agent, that is, collecting the dead, blackened and rotted insects in the field due to the poisoning of the acaricidal bacteria, loading them into the gauze bag, adding water to soak, smashing, filtering , using the filtrate spray to control the same kind of pests in the field. Generally 50 to 100 grams of dead insect extract plus 50 ~ 100 kilograms of water spray.
(3) Spreading the bacteria powder with the fine grains of fine sand or furnace ash at a ratio of 1:20, and put the medicine into the corn heart leaves during the 5% tasseling period of corn, 1~2 grams per plant. . The dead worm body can exude the bacteria and spread in the corn borer population. It is also effective in the second year of application. The application of the drug for several years can better control the corn borer.
4. Precautions should be stopped 1 to 2 days before the harvest of vegetables. According to the China Pesticide Network , it can not be mixed with fungicides , and can be mixed with general insecticides. It should be sprayed at 20 °C ~ 28 °C in the evening or cloudy. When the leaf surface has a certain humidity, the effect can be improved. Under noon strong light conditions, the live spores will be killed, which will affect the efficacy. The insecticidal effect of the Acariciid preparation is slower, and the application period is better at the pest stage or the younger stage of the larva. Adding 0.5%~1% washing powder to the bacterial liquid can improve the control effect.
Continuous use as much as possible, pest infection can be transmitted within the pest population after death, causing bacterial epidemics, and continuous application of drugs can increase the chance of continuous bacteria to better control pests.
Usually, the commercial dosage form is a powder, and the number of live spores per gram is 100 to 30 billion. If the amount of live spores per gram of bacteria powder is less than 10 billion, or the insecticide caused by the local method, according to the insect situation, it may be appropriately increased. The amount of bacteria powder is used to ensure the control effect. The pesticide should be stored in a cool, dry place.