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Biotechnical control of tar spot (Rhytisma acerinum) disease on velvet maple (Acer velutinum Boiss) in vitro
antibiotic fungus
2015/5/5
Several different fungi can cause tar leaf spot diseases in maple trees, including three fungi of the genus Rhytisma. Rhytisma acerinum (Pers.) Fries is an ascomycete that forms black stromata known a...
Current state of beech bark necrotic disease in Southern Poland
beech Fagus sylvatica L. necrotic disease stem crown part Southern Poland
2015/3/12
The degree of the beech bark necrotic disease was evaluated in three selected localities in southern Poland, in different orographic complexes, Beskid Sądecki, Beskid Niski, and Bieszczady. The d...
The authors elaborated a new complex methodical approach to the evaluation of necrotic disease of beeches. They used two evaluation scales: a scale for the evaluation of stems and a scale for the eval...
Actual status of the beech bark necrotic disease in North Western Bulgaria
beech Fagus sylvatica L. bark necroses
2015/3/3
In this paper we present recent findings about the beech bark necrotic disease in selected localities situated
in the mountain ranges Vitosha and Stara planina in Bulgaria. The resulting values of n...
Effect of Mg fertilization on yellowing disease of Norway spruce at higher elevations of the Šumava Mts., Czech Republic
Mg deficiency defoliation long-term effect
2015/3/3
Norway spruce yellowing and defoliation caused by Mg deficiency was frequently recorded on many sites
of the Šumava Mts. (Bohemian Forest Mts.) since 1980’s. A forest experiment aimed at invest...
Development of beech necrotic disease in the growing phase of maturing stand under air pollution stress
Fagus sylvatica L. necrotic disease defoliation growth phase of maturing stand pollutants Central Slovakia
2015/2/6
The paper compares the state of the necrotic disease of beech stem bark on three research plots in 2004 with 1995. The investigated objects were three research plots of beech in the growing phase of m...
Necrotic disease of beech in individual growth stages
Fagus sylvatica L. bark necrotic disease growth stages of beech Slovakia
2015/2/2
The paper deals with the present state of necrotic disease of beech in the growth stages of self-seeding, advance growth, thicket, small pole stage, pole stage and maturing stand from four localities ...
Development of necrotic disease and health condition of trees of selective quality in a systematically tended beech pole-stage stand
beech pole-stage stand thinnings Central Slovakia
2015/1/29
We compare the results of observations of bark necrotic disease and defoliation of beech assimilatory organs carried out in 1996 and 2000. A systematically managed, 53-year old beech pole-stage stand ...
Beech bark necrotic disease (Fagus sylvatica L.) of tracheomycotic type in Central and South-eastern Europe
beech bark necrotic disease Central and South-eastern Europe Fagus sylvatica L.
2015/5/6
The authors present results of long term monitoring of beech stems bark necrotic disease of maternal stand in Czech Republic, Slovakia, Poland, Hungary, Romania, Serbia and Bulgaria. Overall, 10,863 b...
Crucial knowledge on how Queensland koalas adapt to heat, cope with habitat loss and transmit common diseases will be the focus of five research projects.
Fighting disease spread during ‘the greatest show on earth’（图）
Fighting disease ‘the greatest show on earth’
2010/2/24
The annual migration of over a million wildebeest across the Serengeti and Maasai Mara is often described as one of the greatest spectacles on earth. However, this natural wonder poses a real threat t...
A Strategy for Controlling Pine Wilt Disease and Its Application On-site
control measures control operations feasible and practical solution pine wilt disease PWD management strategy
2009/8/28
The severe epidemic of pine wilt disease (PWD) in Japan is caused by the pinewood nematode, Bursaphelenchus xylophilus, an alien pest allied with the endemic vector insect, Monochamus alternatus, orig...
Histological Analysis for Mechanism of Pine Wilt Disease
bordered pits resin canals resistance tracheids xylem parenchyma cells
2009/8/28
Host pine trees infected with pine wilt disease show various histological responses. The pathogenic pinewood nematodes (Bursaphelenchus xylophilus) migrate through the resin canals in cortex and xylem...
Perspectives for the Studies of Pine Wilt Disease in the 21st Century
Perspectives Studies Pine Wilt Disease
2009/8/28
Perspectives for the Studies of Pine Wilt Disease in the 21st Century.
The Development of Pine Wilt Disease and Dynamics of Bursaphelenchus xylophilus in Inoculated Pinus thunbergii Seedling under a Shaded Condition
Bursaphelenchus xylophilus photosynthesis Pinus thunbergii reproduction shade treatment
2009/8/28
We inoculated the pine wood nematode, Bursaphelenchus xylophilus, into Pinus thunbergii seedlings, and investigated the progress of symptoms of pine wilt disease and dynamics of B. xylophilus in the s...