The efficiency of spraying with insecticide against the invasive moth Cameraria ohridella.
One of the most efficient methods, of maintaining at a low population level Cameraria ohridella, is to destroy the majority of wintering pupae from litter. According to Fora et al. (2010), in 100 g of litter there are wintering more than 400 copies, and mortality at this stage is between 4.1 to 12.9%. However, the mechanical control by collecting and destruction of litter, in the autumn, must be supplemented by other measures during all growing seasons. One of these methods is chemical control, especially in forest stands, parks with large areas, where the mechanical method is inefficient , or difficult to be applied.