It is a small chemical capsule in a plastic bottle half-filled with water. But it works wonders -- insects flock to the bottle to drown.
Farmers, who earlier used to apply heavy doses of pesticide in their vegetable fields, now need only this wonder capsule they call 'talisman'.
Scientists call it pheromone -- the female sex hormone of insects -- that attracts the male.
This technology will radically change the use of pesticide in Bangladesh, making vegetables free from toxic elements, they envisage.