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Å UMARSKI LIST 9-10/2003 - HÅ D

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SI. 1. Ženka (lijevo) i mužjak gubara (Lymantria dispar<br />

L.) prilikom kopulacije na kori hrasta (u prirodi<br />

je inače redovito položaj para u kopulaciji<br />

vertikalan - ženka gore, mužjak dolje).<br />

Fig. 1 Female (left) and male of gypsy moth (Lymantria<br />

dispar L.) during copulation on oak bark (in natural<br />

conditions pair is oriented vertically - female<br />

above, male below).<br />

SI. 2. Ženka pored svježe odloženog jajnog legla.<br />

Fig. 2 Female with a freshly laid egg cluster.<br />

Jajne ličinke (prvi larvalni stadij) "na ogledalu"<br />

(u travnju, netom nakon eklozije mlade se gusjenice<br />

neko vrijeme zadržavaju na površini jajnog<br />

legla iz kojeg su eklodirale).<br />

Fig. 3 Egg larvae (first larval instar) on the egg cluster<br />

surface (in April, immediately after the eclosion,<br />

young larvae are confined to the place of their<br />

origin).<br />

SI. 4.<br />

Fig. 4<br />

Odrasla gusjenica gubara (snimljena polovicom<br />

lipnja).<br />

Fully grown gypsy moth larva (photo taken in<br />

mid June).<br />

(Tekst i fotografije B. Hrašovec)<br />

O gubaru (Lymantria dispar L.) je u domaćoj i stranoj literaturi napisano mnoštvo znanstvenih i stručnih priloga.<br />

Radi se o jednom od svjetski najpoznatijih šumskih defolijatora sa sposobnošću višestrukog i naglog povećanja<br />

gustoće populacije, što rezultira dramatičnim štetama na šumskom drveću. Zbog svoga biološkog svojstva<br />

već dugi niz godina u domaćoj šumarskoj praksi redovno se provodi nadzor gustoće njegovih populacija u svim<br />

šumama gdje se prirodno javlja. Odlučili smo ipak u okviru ovog redovnog priloga još jednom podsjetiti na neke<br />

detalje iz njegove biologije, s obzirom da nam prema nekim predznacima i dojavama sa terena predstoje godine<br />

povećanja njegove gustoće populacije, a moguće i potreba za provedbom neposrednih mjera suzbijanja.<br />

Large number of scientific and professional papers, both domestic as well as foreign, have addressed gypsy<br />

moth (Lymantria dispar L.) due to its leading position of being one of the world's best known forest defoliator.<br />

Because of the capability to enter into outbreak phase in a short time it has been monitored in Croatia on a yearly<br />

basis in forest ecosystems where it occurs naturally. In spite of being a well known organism and the fact of routinely<br />

conducted monitoring activities by a trained personell we decided to draw the attention of practitioners<br />

once again to some aspects of its biology. Our decision was spurred by the fact that some indications and information<br />

from the field suggest that we might expect some population buildup in the years to come.<br />

IZDAVAČ: HRVATSKO ŠUMARSKO DRUŠTVO uz financijsku pomoć Ministarstva<br />

znanosti i tehnologije Republike Hrvatske i Hrvatskih šuma d.o.o.<br />

Publisher: Croatian Forestry Society - Editeur: Societe forestiere croate -<br />

Herausgeber: Kroatischer Forstverein<br />

Grafička priprema: ŽUPANČIĆ H R d.o.o. - Zagreb<br />

Tisak: EDOK - Zagreb

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