👉 BT Fluid, or Bacillus thuringiensis fluid, is a biological insecticide derived from naturally occurring bacteria. It is primarily used in agriculture to control a variety of pests, particularly caterpillars and other insect larvae that can damage crops. When applied to plants or sprayed directly onto affected areas, BT Fluid releases Bt toxins, which are harmful to specific insect larvae but safe for humans, animals, and beneficial insects. The Bt toxin targets the digestive systems of these pests, causing them to die after ingestion, thereby protecting crops without the need for synthetic chemical pesticides. This makes BT Fluid an environmentally friendly and sustainable option for pest management.