Onion thrips
cells of the surface tissues and sucking out their contents, causing the surrounding tissue to die. The resulting silver-grey patches on leaves and the black [...] prepupa, pupa, and finally the adult insect. The eggs of the onion thrips (Thrips tabaci) are laid in leaves, flower petals and in the soft parts of stalks. [...] over the head. The prepupal and pupal instars do not feed and only move if disturbed. Damage symptoms Thrips cause damage to plants by piercing the cells