Actuality from Planting stock quality centre
(accredited laboratory "Forest nursery control")
in Forest Research Station at Opocno

By Jarmila Narovcova and Marcela Skuhrava

Problem of gall midge Contarinia fagi in forest nurseries
of the Czech Republic

The beech bud gall midge (Contarinia fagi) (Diptera: Cecidomyiidae) attacks beech seedlings (Fagus sylvatica) in several forest nurseries in the Czech Republic. Four generations of this gall midge developed in the plastic greenhouse of the Forest Research Station at Opocno in 2002. Theoretically, the offspring of one parent pair of gall midge (of 1 female and 1 male) should produce during 4 generations up to 100,000 adults which may attack up to 300,000 beech buds in one vegetation season. In the Czech Republic beech seedlings are damaged also by other biotic agents, viz. eriophyid mites of the genus Aceria (Eriophyidae, Acari) and by fungi of the genus Nectria (Ascomycetes, Fungi). Multiplication and stunted shoots of young beech plants may be manifestation of virus disease. To prevent this situation, it is necessary to control beech seedlings by all accessible means.
The following recommendations may contribute to reduce the occurrence of damaging agents: to change each year the soil (organic) substratum, in which young beech seedlings are grown; to determine the suitable time for sowing the beech seed to prevent the coincidence of very young beech plants and flying gall midges (Contarinia fagi); to repeat the chemical control of young beech plants and to use such insecticides which are directed at sucking insects. Preventive chemical control in forest nurseries is advisable at places where damaged young beech plants occur.

Forestry and Game Management Research Institute Jiloviste-Strnady
(Forest Research Station at Opocno)
participate with
Forests of the Czech Republic, s. e. (Reforestation Agency, Teplice)
in organization of national workshop

Results of forestry research
in the Ore Mts. in 2001

in Teplice (March 14, 2002)

The aim of the Workshop is to provide the new results of forestry research in the air polluted region of the Ore Mts. to forest owners, to the State Administration and to other interested experts.
Contributions were divided into three thematic blocks:
1. Soil Environment - orientation on the topic problem of pioneer species, liming and nitrogen in forest ecosystem of the Ore Mts.
2. Health Condition of Forest Stands - orientation primarily on the development of deposition in the area of the Ore Mts., on the health status of assimilation organs of forest tree species and on the dynamics of phytophages on birch.
3. Silviculture - orientation on new results on development of target trees in stand conversion, on dynamics of needle substitute tree species and on silviculture technique in substitute stands of blue spruce.

In occasion of 80th anniversary
of Forestry and Game Management Research Institute (FGMRI)
and 50th anniversary of Forest Research Station at Opocno,
the Conference

5O years
of Silvicultural Research in Opocno

was held in Opocno (September 12 - 13, 2001)

with the aim to summarize the activity of silvicultural research in the fifty years history of the Forest Research Station. All contributions and posters presented on the Conference were included into Proceedings.

FGMRI together with Pro Silva Bohemica and LCR organised
the colloquium

Heritage of forest practice
(in Opocno region)
started by Hugo Konias

in Opocno (May 17 - 18, 2001)

Colloquium gave information about long-term results of forest transformation and evaluates the topical state in the forests, where the close-to-nature management was used for a long time. Presented reports were published in collection. Excursion into forest stands managed by close-to-nature management was held during colloquium.

The international Conference

Seminar on Valuation of Forest
Goods and Services

was held in Forest Research Station at Opocno in November 19 - 21, 2000

Together 31 participants from 11 countries took part in the seminar, from Austria, Czechia, Finland, Hungary, Italy, the Netherlands, Romania, Spain, Turkey, USA.
We asked interested people to concentrate on the following topics:
1. State of art of valuation in forestry in general as well as the ways and means to include results into the economic and natural resources accounting system,
2. Non-market forest goods and services with market impact,
3. Non-material forest (goods and) services including valuation and related policy aspects,
4. Marketing of "non-market" goods and services.
In spite of the fast that during the previous discussions in was decided to cover only the field of "non-productive" functions, presentations on valuation of productive functions have not been excluded and they have met with positive reception.