o:6701 GRADACIJA MRAZOVACA (LEPIDOPTERA, GEOMETRIDAE) NA PODRUČJU CERA sr Gradacija mrazovaca (Geometridae) na području Cera trajala je od 1990-1994. godine. Izrazito dominantan u periodu kulminacije gradacije, koja je trajala dve godine, bio je mali mrazovac Operophtera brumata L. u 1992. godini. U 1992. godini prosečan broj gusenica na 1000 listova na celom ispitivanom području iznosio je 245,8 a delimičan i totalan golobrst utvrđeni su na 394,25 ha. U 1993. godini prosečan broj gusenica na 1000 listova iznosio je 358,4 a delimičan i totalan golobrst su konstatovani na 719,76 ha. Winter moth (Geometridae) outbreak in the region of Mt. Cer lasted from 1990 to 1994. In the period of outbreak culmination which lasted for two years, small geometrid moth Operophtera brumata L. was expressively dominant in 1992. In 1992, average number of caterpillars per 1,000 leaves throught out the analyzed region amounted to 245.8, and partial and total defoliations were observed over 394.25 ha. In 1993, average number of caterpillars per 1,000 leaves amounted to 358.4, and partial and total defoliations were observed over 719.76 ha. gradacija, mali mrazovac, prag štetnosti, golobrst outbreak, small geometrid moth, damage threshold, defoliation 1552101 0351-9147 2024-12-19T13:44:50.252Z 44 yes 46 Danica Minić application/pdf 3352310 https://unilib.phaidrabg.rs/o:6701 no yes 1 70 92000001 1996 71A07 Zbornik radova Instituta za šumarstvo 108 115 Institut za šumarstvo 1996