The insect or its larva is one of the most important in viticulture beneficials in the fight against Vine enemies, "Chrysoperla cernea" is the most important of the large family due to its predatory performance against insect pests. The approximately 20 millimeter insect has two longer, transparent greenish wings, the pale green body is crossed by a yellowish-white back stripe (picture left). The adult flies live on nectar and are usually not predatory. After wintering, the eggs with a stick are preferably placed in groups on the leaf from which the larvae hatch.
The hatched larvae, about two millimeters in size, have two powerful pliers on their head, which are used to grasp the prey and then suck it out (right picture). Count as prey mites and their eggs (especially spider mites), various lice (especially aphid as in the picture and cochineal ) Rebenthripse and cicadas, as well as eggs and larvae of small butterflies, Lacewing larvae are bred and used against pests in the vineyard. See also under Organic viticulture and plant protection,