REZULTATI ISPITIVANJA VERTIKALNE DISTRIBUCIJE GUSENICA BOROVOG SAVIJAČA (Rh. buoliana Schiff.) NA STABLIMA U BOROVOJ KULTURI U LIPOVAČKOJ ŠUMI) VERTICAL DISTRIBUTION OF CATERPILLARS OF EUROPEAN PINE SHOOT MOTH (Rhyacionia buoliana S c h i f f.) ON THE TREES IN A BLACK PINE PLANTATION IN LIPOVIČKA ŠUMA In 1980. year, on 26 trees in a black pine plantation, in Lipovačka šuma near Belgrade, the vertical distribution of caterpillars of european pine shoot moth (Rhyacionia buoliana S chi ff.) was investigated. The attacked buds were collected and analyzed separately from the lower, middle and upper third of the crown. A total of 1.939 infected buds were collected. From this number 52,81 % belonged to the lower, 41,60% to the middle and only 6,03% to the upper part of the crown. A great deal of the attacked buds was empty i. e. without caterpillars. They were found in 325 buds, from which 271 (88 ,38%) were alive and 54 (16,62%) dead. From the total number of the alive caterpillars, the smallest number (5 i. e. 9,26%) was found in the upper part of the crown. This fact is of practical importance. It points out that for a successful protection of young pine trees only the treatment of the terminal shoots will satisfy. Zbornik radova Instituta za šumarstvo number: 18-19 startpage: 121 endpage: 125 https://unilib.phaidrabg.rs/o:6739 All rights reserved srp Vasić, Konstantin Vasić, Milomir 1982 application/pdf 7114438 bytes Institut za šumarstvo info:eu-repo/semantics/article