Effect of Sun Exposure of the Horse Chestnut (Aesculus hippocastanum L.) on the Occurrence and Number of Cameraria ohridella (Lepidoptera: Gracillariidae)

The study of the leafmining moth chestnut miner (Cameraria ohridella Deschka & Dymić, 1986) was carried out through planting common horse (Aesculus hippocastanum L.) in Main Botanical Garden Russian Academy Sciences. effect various degrees insolation plants on leaf morphology and composition secondary metabolites, as well relationship these parameters with number density C. populations during growing season, studied. solar influence, it noted, had a significant impact. Thus, largest pests recorded leaves sunlit side tree crown, smallest shady part crown. low content polyphenols pool metabolites tissues A. did not deter poorly protected from this miner, while carbohydrates reduced resistance to damage by Ohrid miner.