Стовбурові шкідники на ділянках вітровалу у соснових насадженнях та пріоритети призначення санітарних рубок

In the pine stands of the northern east of Ukraine species composition of stem insects and severity of colonization depends on the terms of wind damage (summer or winter windstorm) and differs for windbroken and uprooted trees, which depends on different rate of phloem drying. Therefore total sanitary felling must be carried out in the first turn in the isolated forest plots with obligatory exportation, debarking or treatment of timber with insecticides. In the case, when all damaged trees can be removed from windstorm plot during one year, windbroken trees must be felled in the first turn. In the case, when all damaged trees cannot be removed from windstorm plot during one year, uprooted trees must be felled in the first turn. Dead trees of previous years and windbroken trees, which do not belong to industrial timber and do not colonized by stem insects, must be remove in the last turn.