Halothrin lambdasai, with the trade name Half Lambda, is a non-systemic pyrethroid insecticide with contact and digestive effects, with repellent and retention properties that cause rapid insect death. In Zeons technology, the active ingredient halothrin lambdasai is surrounded by microcapsules that stick to the leaves after spraying, and as soon as they dry, the capsule bursts and spreads the active ingredient in an area 40% larger than the diameter of the poison. Avoid spraying when bees are active.