从India供应商批量进口Mahastra (Bacillus Thuringiensis 0.5% W.P)

Bio Nematicide MAHASTRA (Bacillus thuringiensis 0.5% W.P) W.P. CFU : 1x1011 Packaging : 250gm, 500gm, 1kg, 25kg Documents: MSDS / LABEL / CIB Registration License / COA / Trial reports Mode of Action : Bacillus thuringiensis (or Bt) is a common gram positive, spore-forming, soil bacterium. When resources are limited, vegetative Bt cells undergo sporulation, synthesizing a protein crystal during spore formation. Proteins in these crystals are called Cry (from Crystal) endotoxins and have been known for decades to display insecticidal activity against specific insect groups. Even though Cry toxins have been extensively used commercially, the specifics of their mode of action are still controversial. This multi-step toxicity process (see Figure below) includes ingestion of the Cry protein by a susceptible insect, solubilization, and procesing from a protoxin to an activated toxin core in the insect digestive fluid. The toxin core travels across the peritrophic matrix and binds to specific receptors called cadherins on the brush border membrane of the gut cells. Toxin binding to cadherin proteins results in activation of an oncotic cell death pathway and/or formation of toxin oligomers that bind to GPI-anchored proteins and concentrate on regions of the cell membrane called lipid rafts. Accumulation of toxin oligomers results in toxin insertion in the membrane, pore formation, osmotic cell shock, and ultimately insect death. Target Crops: Vegetables (Tomato, Cabbage, Cauliflower), Cotton, Citrus, Fruits Method of Application and Dosage : Foliar Spray: Take 5 to 10 gm. MAHASTRA per ltr of water. Spray with high volume knepsek sprayer or power sprayer at the appearance of insect pests mainly DBM (Diamond Bag Moth) & Helicoverpa in Tomato & Cotton Repeat the Foliar Spray at 10 times intervals Compatibility Bacillus thuringiensis is plant and environment compatible. It can be mixed with bio-fungicide; Bio-insecticide and bio-fertilizer don’t mix with chemical fertilizers.