Чи загрожують біоенергетичним культурам шкідники

Purpose. To identify the species composition of phytophages in sowings and plantationsof bioenergy crops and found out their number. Methods. Field, analytical, statistical. Results. Inmiscanthus sowings, soil pests such as click-beetle’s larvae — wireworms, green sandpiper — false wireworms, May and June beetle and grain beetlesare harmful to the crop. Similarly, this applies to energy willow plantations. In addition to soil pests, energy willow can be rapidly colonized by phytophages that damage its aboveground part. In particular, leaves of willow can be damaged by willow flea, willow aphid, apple bark miner, and capsid bug. Crops of switchgrass are inhabited by ground pests such as cereal fly, leafhoppers, capsid bug, bread flea beetles, aphids and cereal leaf beetle. Sweet sorghum can be damaged by cereal aphids, caterpillars of stem cornbutterfly, striped leafhoppers, and capsid bug. The number of phytophagesin different areas was different. In particular, cereal aphids inhabited 64.0% of plants (settling score 1.2) in Veselopodilska Research Breeding Station, 45.0% (1.3), respectively, in Uladivska Research Breeding Station, and 52.0% (1.3) in BilaTserkva Research Breeding Station. Stem butterfly damaged 23.0 to 32.0% stems with the number of tracks 1–3 in one stem; the number of sproutflywas 15 per 100 netwavings, and capsid bug16–17 per 1 m2. Conclusions. Plantations of bioenergy crops such as miscanthus, energy willow, sweet sorghum and switchgrassare inhabited by many species ofphytophages, the number of which still does not exceeds economic threshold ofharmfulness. However, the expansion of bioenergy crops can lead to an increase in their population density and danger to plants.