Influence of Additives of Common Origanum and Marsh Cinquefoil on Bioindication Indicators of Larvae Galleria Mellоnella L.

Abstract

Galleria mellоnella L. is one of the main pests in beekeeping. Therefore, scientists are studying Galleria mellоnella L. to find methods to combat it and as a model object for physiological and biochemical studies. In addition, some medicinal plants contain active substances that affect the physiological parameters of insects and even exhibit insecticidal properties. In the study, the authors evaluated the effect of additives from dry powders of common origanum and marsh cinquefoil on the dynamics of weight change, survival and uniformity of the metamorphic composition in the Galleria mellоnella L. Larvae of the third age were selected for the experiment. Additives were added to the insect food substrate at 10, 50 and 100 mg per 3 g of the standard diet. For 16 days, the mass of insects and the stage of their development were recorded in the experimental and control groups. The results showed that the supplements studied had a stimulating effect on larval growth at low doses. In the experimental groups, a trend towards faster development of larvae was found. The average daily weight gain per larva in all experimental groups was significantly (P<0.01) more significant than in the control group. At a dosage of 100 mg of joint origanum supplement, the survival rate of insects was minimal and amounted to 80%. At dosages of 50 and 100 mg of additions of common origanum and marsh cinquefoil, a violation of the homogeneity of the age composition was observed. The data obtained allow us to conclude that it is promising to study further the impact of marsh cinquefoil and common oreganum additives on insect pests.