Spremljanje sezonske dinamike vrbarja (Cossus cossus L.) v ekstenzivnih sadovnjakih s feromonskimi vabami

diplomsko delo - visokošolski strokovni študij

Peter Jeršič (Author), Lea Milevoj (Reviewer), Stanislav Trdan (Mentor), Franc Pohleven (Co-mentor)

Abstract

V letih 2005 in 2006 smo v nasadu marelic in češenj v bližini Pišec s feromonskimi vabami spremljali gostoto populacije samcev vrbarja (Cossus cossus L.), katerega gosenice so na omenjenem območju v preteklosti povzročale propadanje dreves. Škodljivec se je v teh letih masovno pojavljal od konca junija do konca julija. Ker za zatiranje škodljivca v Sloveniji ni registriranega insekticida, je treba iskati druge možnosti za zmanjševanje škodljivosti te žuželčje vrste. Med najbolj obetavne tovrstne metode štejemo uporabo sintetičnih feromonov v obliki dispenzorjev (metoda motenja parjenja),ki jo predlagamo za implementacijo v sisteme pridelave sadja na območjih, kjer predstavlja vrbar pomemben biotični dejavnik omejevanja gospodarnosti pridelave. V letu 2005 smo največ samcev (1 metulj/vabo/2 dni) ugotovili v 1. dekadi julija, ko je vsota efektivne temperature znašala 595,4 °C, povprečna temperatura zraka pa 18,8 °C. V letu 2006 smo največ metuljev (1,4 samcev/vabo/dan) v vabah našli v drugi polovici zadnje dekade junija, pri vsoti efektivne temperature 519,0 °C, takrat, ko je povprečna temperatura zraka znašala 24,6 °C. Kot spodnji hipotetični prag aktivnosti smo uporabili 10,0 °C.

Keywords

vrbar;Cossus cossus;feromonske vabe;sezonska dinamika;

Data

Language:	Slovenian
Year of publishing:	2009
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[P. Jeršič]
UDC:	630*413.5
COBISS:	1761161
Views:	1051
Downloads:	306
Average score:	0 (0 votes)
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Other data

Secondary language:	English
Secondary title:	Seasonal dynamics of goat moth (Cossus cossus L.) in extensive orchards using pheromone traps
Secondary abstract:	In the period 2005 and 2006, the monitoring of male adults of the goat moth (Cossus cossus L.) was performed with pheromone traps in plantation of apricots and cherries in the vicinity of Pišece. In the past, the caterpillars of this insect pest caused languishing state of the trees. In both years the massive occurrence of the pest was established in the period from the end of June till the end of July. In Slovenia, no insecticides are registered for controlling the goat moth, therefore, other ways of suppressingits damage should be found. One of the most promising methods is the use of controlled-release pheromone dispensers (mating disruption method), which we suggest for implementation in the systems of the fruit production in these areas, where the goat moth is an important biotic factor for limitation of fruit production. In 2005, the highest number of males (one specimen/trap/2 days) was found in the first decade of July, when the degree-day sum was 595.4 °C, and average air temperature 18.8 °C. In 2006, the highest number of butterflies (1.4 males/trap/day) was found in the second half of the last decade of June, when the degree-day sum was 519.0 °C, and average air temperature 24.6 °C. The lower hypothetical developmental threshold was 10.0 °C.
Secondary keywords:	goat moth;Cossus cossus;pheromone traps;seasonal dynamics;
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Ljubljani, Biotehniška fakulteta, Odd. za lesarstvo
Pages:	VII, 32 f.
Keywords (UDC):	applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;agriculture and related sciences and techniques;forestry;farming;wildlife exploitation;kmetijstvo ter sorodne vede in tehnologije;forestry;gozdarstvo;forest injuries and protection;poškodbe in varstvo gozdov;
ID:	21710