Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - un nou dăunător al pădurilor de molid din România [ Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - a new pest of the Norway spruce forests in Romania]
. Defoliation of some Norway spruce stands, caused by Cephalcia abietis, was first reported in Romania in the autumn of 2015. The outbreak has affected 58 ha in the Eastern Carpathians and 190 ha in the Southern Carpathians. The species was previously known only as a faunistic element in the cou...
| Main Author: | |
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| Format: | Article |
| Language: | English |
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”Ștefan cel Mare” University of Suceava, Faculty of Forestry and “Marin Drăcea” National Research-Development Institute in Forestry - Station Câmpulung Moldovenesc
2017-07-01
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| Series: | Bucovina Forestieră |
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| Online Access: | http://www.bucovina-forestiera.ro/arhiva/2017/17(1)/02_olenici_7-34.pdf |
| _version_ | 1818473062052397056 |
|---|---|
| author | Olenici N. |
| author_facet | Olenici N. |
| author_sort | Olenici N. |
| collection | DOAJ |
| description | . Defoliation of some Norway spruce stands, caused by Cephalcia abietis,
was first reported in Romania in the autumn of 2015. The outbreak has
affected 58 ha in the Eastern Carpathians and 190 ha in the Southern Carpathians.
The species was previously known only as a faunistic element in the
country and very little information on its biology, ecology, detection, forecast
and population control is available in the Romanian literature. This paper is a
synthesis of information concerning the web-spinning spruce sawfly, whose
aim is to fill the knowledge gap. C. abietis is a species with a vast distribution
area, but repeated outbreaks were reported especially from Central Europe. In
the outbreak areas, the most insects of a generation need 2-3 years to complete
their development, so that an intense flight and a stronger defoliation take
place every 2-3 years. Although mortality factors affecting the populations of
C. abietis are very numerous, they fail to keep defoliator populations under
control and outbreaks may extend for a long time. Mass multiplication occurs
mainly in pure Norway spruce stands older than 60 years, at medium altitudes
(600-1000 m), in places exposed to periodic drought or pollution. Biological
and ecological peculiarities of this species make the prognosis of defoliation
much more labor intensive than that for other defoliators, although quite uncertain.
The chemical control, with partially selective insecticides (chitin synthesis
inhibitors), was usual during recent decades, while biological control
is still in the experimental phase. Consequently, greater emphasis should be
placed on preventing mass multiplication of this species |
| first_indexed | 2024-04-14T04:17:45Z |
| format | Article |
| id | doaj.art-bd18ba777b10418cada3dc83fd24d4a2 |
| institution | Directory Open Access Journal |
| issn | 1582-0769 1582-3725 |
| language | English |
| last_indexed | 2024-04-14T04:17:45Z |
| publishDate | 2017-07-01 |
| publisher | ”Ștefan cel Mare” University of Suceava, Faculty of Forestry and “Marin Drăcea” National Research-Development Institute in Forestry - Station Câmpulung Moldovenesc |
| record_format | Article |
| series | Bucovina Forestieră |
| spelling | doaj.art-bd18ba777b10418cada3dc83fd24d4a22022-12-22T02:12:47Zeng”Ștefan cel Mare” University of Suceava, Faculty of Forestry and “Marin Drăcea” National Research-Development Institute in Forestry - Station Câmpulung MoldovenescBucovina Forestieră1582-07691582-37252017-07-0117100703410.4316/bf.2017.002 Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - un nou dăunător al pădurilor de molid din România [ Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - a new pest of the Norway spruce forests in Romania]Olenici N.0National Institute for Research and Development in Forestry “Marin Drăcea”, Câmpulung Moldovenesc Station, Calea Bucovinei 73 bis, 725100 Câmpulung Moldovenesc, Suceava. Defoliation of some Norway spruce stands, caused by Cephalcia abietis, was first reported in Romania in the autumn of 2015. The outbreak has affected 58 ha in the Eastern Carpathians and 190 ha in the Southern Carpathians. The species was previously known only as a faunistic element in the country and very little information on its biology, ecology, detection, forecast and population control is available in the Romanian literature. This paper is a synthesis of information concerning the web-spinning spruce sawfly, whose aim is to fill the knowledge gap. C. abietis is a species with a vast distribution area, but repeated outbreaks were reported especially from Central Europe. In the outbreak areas, the most insects of a generation need 2-3 years to complete their development, so that an intense flight and a stronger defoliation take place every 2-3 years. Although mortality factors affecting the populations of C. abietis are very numerous, they fail to keep defoliator populations under control and outbreaks may extend for a long time. Mass multiplication occurs mainly in pure Norway spruce stands older than 60 years, at medium altitudes (600-1000 m), in places exposed to periodic drought or pollution. Biological and ecological peculiarities of this species make the prognosis of defoliation much more labor intensive than that for other defoliators, although quite uncertain. The chemical control, with partially selective insecticides (chitin synthesis inhibitors), was usual during recent decades, while biological control is still in the experimental phase. Consequently, greater emphasis should be placed on preventing mass multiplication of this specieshttp://www.bucovina-forestiera.ro/arhiva/2017/17(1)/02_olenici_7-34.pdfspruce web-spinning sawflybiologyecologyoutbreaksdetectioncontrol |
| spellingShingle | Olenici N. Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - un nou dăunător al pădurilor de molid din România [ Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - a new pest of the Norway spruce forests in Romania] Bucovina Forestieră spruce web-spinning sawfly biology ecology outbreaks detection control |
| title | Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - un nou dăunător al pădurilor de molid din România [ Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - a new pest of the Norway spruce forests in Romania] |
| title_full | Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - un nou dăunător al pădurilor de molid din România [ Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - a new pest of the Norway spruce forests in Romania] |
| title_fullStr | Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - un nou dăunător al pădurilor de molid din România [ Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - a new pest of the Norway spruce forests in Romania] |
| title_full_unstemmed | Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - un nou dăunător al pădurilor de molid din România [ Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - a new pest of the Norway spruce forests in Romania] |
| title_short | Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - un nou dăunător al pădurilor de molid din România [ Cephalcia abietis (L.) (Hymenoptera: Pamphiliidae) - a new pest of the Norway spruce forests in Romania] |
| title_sort | cephalcia abietis l hymenoptera pamphiliidae un nou daunator al padurilor de molid din romania cephalcia abietis l hymenoptera pamphiliidae a new pest of the norway spruce forests in romania |
| topic | spruce web-spinning sawfly biology ecology outbreaks detection control |
| url | http://www.bucovina-forestiera.ro/arhiva/2017/17(1)/02_olenici_7-34.pdf |
| work_keys_str_mv | AT olenicin cephalciaabietislhymenopterapamphiliidaeunnoudaunatoralpadurilordemoliddinromaniacephalciaabietislhymenopterapamphiliidaeanewpestofthenorwayspruceforestsinromania |