It is established that if the environmental factors do not have advantages in suppression of vital functions of the organism, the intensity of elimination is significantly reduced. Accordingly, the prospect of biodiversity conservation and entomophage numbers in biocenoses is increasing. For commercial entomophage cultivation, an important element is the optimization of their feeding. It has been experimentally established that the efficiency of entomophages depends on the qualitative and quantitative indices of plant resources, the density of the phytophage population (host), the biological potential of predators.

Based on the results of commercial rearing of field cultures of entomophages, the efficiency of supplementary feeding has been analyzed. Trophic reserves have been identified for the period of adaptation and use of biological agents in agrocenosis. It has been established that in order to preserve and function natural populations of entomophages, it is necessary to constantly improve trophism, methods of seasonal colonization, introduction and acclimatization.

Of particular interest for organic farming in Ukraine are predatory green lacewings of the Chrysopa genus, which actively destroy ashes, leaf litter, worms, ticks. In the natural environment, Chrysopa winter locations are different: non-residential, home and industrial gardens, forest strips, parks.

Chrysopa larvae are characterized by excellent search ability and gluttony. Chrysopa саrnеа Steph. and Chrysopa siniса Тj. are considered priority for limiting the harmfulness of phytophages. It is experimentally proved that the laboratory-field culture of Chrysopa siniса Тj. is successfully propagated in biological laboratories and differs from Chrysopa саrnеа Steph. the least larval cannibalism.

Important experience of analytical and active aspects of marketing in plant biological protection to enhance the use of predatory green lacewings in modern agrocenoses.

Optimizing the cultivation of predatory green lacewings has improved development, increased performance of the imago, increasing the effectiveness of their use as biological agents to limit the harmfulness of aboriginal phytophages.

Optimizing the cultivation of predatory green lacewings has improved development, increased performance of the imago, increased efficiency of the use of entomophages as biological agents for limiting the harmfulness of aboriginal phytophages.

The proposed technological parameters for optimizing the diet for predatory green lacewings are consistent with the criteria of effectiveness, a strategy for the conservation of biodiversity, and meet the priorities for conservation, restoration and improvement of natural ecosystems.