Vzdělávací materiály projektu
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1 Vzdělávací materiály projektu Inovace biologických a lesnických disciplín pro vyšší konkurenceschopnost (InoBio) Tento projekt je spolufinancován Evropským sociálním fondem a Státním rozpočtem ČR InoBio CZ.1.07/2.2.00/
2 Fungal diseases of Larch (Larix sp.) Th.L.Cech, Mendel University in Brno 2013
3 Needle diseases Mycosphaerella laricina Meria laricis Hypodermella laricis Melampsora-Rust (Melampsora spp.) Lophodermium laricinum
4 Mycosphaerella Needle cast (Mycosphaerella laricina)
5 Mycosphaerella laricina Weit verbreitet, typische Folge von Lausbefall
6 Mycosphaerella laricina
7 Sucking damage by the Larch aphid Adelges geniculatus
8 Females of the Larch aphid Adelges geniculatus and eggs
9 Meria-larch needle cast (Meria laricis) Widely spread over most of the continents, typically following rain in spring
10 Meria-larch needle cast (Meria laricis)
11 Hypodermella needle cast (Hypodermella laricis)
12 Hypodermella needle cast (Hypodermella laricis) Very common in the Austrian Alps in altitudes more than 1000m a.s.l., Epidemics follow warm rainfall in June, Dead needles stick to the twigs over the winter
13 Hypodermella-Needle cast
14 Hypodermella-Needle-cast
15 Larch needle rust (Melampsora spp.) Several species, host alternation with willows, poplars, etc.
16 Lophodermium laricinum
17 Combination of larch bud galls (Dasyneura kellneri)and Mycosphaerella-needle-cast
18 Larch bud galls (Dasyneura kellneri) and Mycosphaerella-needle-cast
19 Shoot and branch dieback, cankers Frost (spring- and winter-frost) Cytospora-dieback (Cytospora spp.) Larch canker (Lachnellula willkommii) Alpine larch shoot dieback (Ascocalyx laricina) Grey mould (Botrytis cinerea) Guignardia shoot blight of larch (Guignardia laricina)
20 Shoot and branch dieback, cankers Following spring- or winter-frost Cytospora spp. infect damaged bark Genus Cytospora: anamorphic stage of the ascomycetous genus Valsa several species on conifers (also on firs!) secondary shoot-, branch-dieback University of Illinois
21 Spring frost
22 Spring frost
23 Spring frost
24 Spring frost
25 Cytospora sp.
26 Grey mould (Botrytis cinerea) Bud- and shoot-damage
27 Alpine larch dieback (Ascocalyx laricina)
28 Larch canker (Lachnellula willkommii)
29 Larch canker (Lachnellula willkommii)
30 Larch canker (Lachnellula willkommii)
31 Guignardia shoot blight of larch (Guignardia laricina) Name: Guignardia laricina or Botryosphaeria laricina, anamorph Fusicoccum sp. Hosts: Larix spp. most susceptible L. europaea, L. laricina and L. occidentalis. Intermediate resistance has been observed on L. eurolepis and L. leptolepis. Resistant L. gmelinii and L. olgensis var. koreana. Pseudotsuga menziesii In artificial inoculation many hosts susceptible. Therefore high risk Geographic distribution: Europe: far east of Russia Asia: Japan, China, both Koreas, Russia
32 Guignardia shoot blight of larch (Guignardia laricina) Biology: Anamorph on infected needles in early summer, causing secondary needle infections; teleomorph on dead twigs in October ripening after two years. Spore discharge between 10 and 35 C (25 C optimum!) and at 98% RH. Primary source of infection ascospores, infecting from August on. No wounds needed for infection! Cool winters and short summer do not favour spread. Symptoms: very much like Sirococcus conigenus on spruces: succulent current years shoots dry and hang down with yellow leaves, later shed; twigs remaining attached for a long time. No infection of older shoots.
33 Guignardia shoot blight of larch (Guignardia laricina)
34 Phytophthora ramorum England, Cornwall, Larix kaempferi (japanese larch) Larix occidentalis and Larix europaea susceptible as well
35 Decline of plants following feeding damage to roots Armillaria infection
36 Hallimasch (Armillaria spp.)
37 Root diseases Armillaria spp. Velvet-top fungus Phaeolus schweinitzii
38 Stem rot fungi Chicken in the woods - Laetiporus montanus
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