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IZVORNI I ZNANSTVENI ČLANCI – ORIGINAL SCIENTIFIC PAPERS Šumarski list br. 7–8, CXXXIV (2010), 403-410 UDK 630* 442 (001) PARASITOIDS AND HYPERPARASITOIDS OF ERANNIS DEFOLIARIA CL. (LEPIDOPTERA, GEOMETRIDAE) IN OAK FORESTS PARAZITOIDI I HIPERPARAZITOIDI ERANNIS ERANNIS DEFOLIARIA CL. (LEPIDOPTERA, GEOMETRIDAE) U HRASTOVIM ŠUMAMA 1 Milka GLAVENDEKIĆ ABSTRACT: The research on biology and ecology of Mottled Umber Moth –Erannis defoliariaCl. (Lepidoptera, Geometridae) was carried out in the period 1985–2009 in oak forests in Serbia. Mottled Umber Moth was mainly in the latency during the investigation. Only at the locality Miroč in East Serbia and in Forest unit Zlatica (National Park Djerdap), it was dominant in the complex of early defoliators. Natural enemies ofE. defoliariaand especially parasitoids and hyperparasitoids are important mortality factors. Egg parasitoidTrichogrammasp. (Hym., Trichogrammatidae) was recorded at few localities in the vicinity of Belgrade and in the wide area of National Park Djerdap. They are nonspecific parasitoids. Somewhat more specific Telenomus minutus(Hym., Scelionidae) was recorded from East Serbia – locality Miroč. Larval parasitoids are Protapanteles immunis,Cotesia limbata,C. jucunda( Hym., Braconidae);Casinaria ischnogaster,Casinaria moesta,Phobocampe crassiuscula, Phobocampe pulchella, Phobocampe sp. (Hym., Ichneumonidae), Euplectrus bicolor, Eulophus larvarum (Hym., Eulophidae), Blondelia nigripes,Phryxe magnicornis,P. nemea,Peribaea fissiconis(Diptera, Tachinidae). There are 16 parasitoids recorded. Five species of hyperparasitoids recorded on E. defoliariaare following: Gelis areator,Bathythrix lamina (Hym., Ichneumonidae), Perilampus ruficornis (Hym., Perilampidae), Habrocytus chrysos. (Hym., Pteromalidae), Tetrastichussp. (Hym., Eulophidae). Key words: Quercus spp., oak, Erannis defoliaria, Mottled Umber Moth, parasitoid, hyperparasitoid INTRODUCTION– Uvod Agood condition and stability of forest ecosystems rests. In Serbia following winter moth species are out- is of the main importance of all forest functions. A breaking and among the most significant oak defoliagreater part of forest regions in Serbia is covered with tors: Colotois pennaria L., Agriopis aurantiaria Hbn., oak climate-zonal communities.The most represented Erannis defoliariaCl.,Alsophila aesculariaD.& Sch., species are sessile oak Quercus petraea (Matt.) Lie-A. acerariaD.& Sch.,Operophtera brumata L.,Apocblein, Turkey oakQ. cerrisL., Hungarian oakQ. frai-heima pilosaria D.& Sch., Agriopis leucophaearia D. nettoTenore, Vergilius’s oakQ. virgilianaTenore and & Sch. andA. marginaria F. (Glavendekić,1999). pedunculate oakQ. roburL. Winter moths are defined as a group of species homo logy as the winter moth fly during autumn and winter, Mottled umber moth –Erannis defoliariaCl. (Lepifemales are apterous or they have reduced wings, they doptera, Geometridae) is one of nine outbreaking winter overwinter in egg or pupal stages, the first instar larvae moths, which are responsible to defoliations in oak fodisperse by ballooning with the aid of wind. Insects feeding on the foliage of live plants are cal- Associate. Prof. Milka Glavendekić, PhD. led defoliators. Oak defoliators are mostly moths, (milka.glavendekic@nadlanu.com), University of Belgrade, Faculty of Forestry, Kneza Višeslava 1, Belgrade, Serbia sawflies, leaf beetles and weevils. Based on the time of |