Articles by Author: Jw Crous

Search results for Jw Crous

We found 25 results for you
  1. A List of <em>Eucalyptus</em> Leaf Fungi and their Potential Importance to South African Forestry

    Item type: Journal Article • Journal: South African Forestry Journal
    Fungi reported from Eucalyptus leaves are tabulated, giving their host species and world geographic distribution. A brief evaluation IS made of the status of the fungi, and also of recent trends in Eucalyptus leaf pathology.
  2. Infection Studies with <em>Phaeoseptoria eucalypti</em> and <em>Coniothyrium ovatum</em> on <em>Eucalyptus</em> spp.

    Item type: Journal Article • Journal: South African Forestry Journal
    Phaeoseptoria eucalypti and Coniothyrium ovatum have recently been associated with leaf lesions on Eucalyptus spp. in South Africa. P. eucalypti caused severe defoliation of E. camaldulensis and E. grandis, prominent lesions on shoots of E. camaldulensis, and retarded the growth...
  3. Shoot and Needle Diseases of <em>Pinus</em> spp. in South Africa

    Item type: Journal Article • Journal: South African Forestry Journal
    Fungi associated with needle and shoot diseases of Pinus spp. in South Africa were surveyed. Sphaeropsis sapinea caused shoot die-back of trees and seedlings of numerous pine species while Colletotrichum acutatum caused similar symptoms on seedlings of P. radiata. Dothistroma...
  4. Two Newly Reported Leaf Pathogens of <em>Eucalyptus grandis</em> in South Africa

    Item type: Journal Article • Journal: South African Forestry Journal
    Pilidium acerinum and Ceuthospora lauri are newly reported pathogens from Eucalyptus grandis leaves in South Africa. Symptoms occurred on leaves of lower branches towards the end of winter. Although occurring together on the same lesion, both fungi were individually patlogenic,...
  5. The Genera <em>Cylindrocladium</em> and <em>Cylindrocladiella</em> in South Africa, with Special Reference to Forest Nurseries

    Item type: Journal Article • Journal: South African Forestry Journal
    Species of Cylindrocladium and Cylindrocladiella are widely distributed throughout the world and are known to be Important pathogens of numerous angiosperm and gymnosperm hosts. Several species are notorious pathogens in nurseries, and have frequently been found on tree genera such...
  6. Fungal Pathogens in <em>Pinus</em> and <em>Eucalyptus</em> Seedling Nurseries in South Africa: A Review

    Item type: Journal Article • Journal: South African Forestry Journal
    Fungal diseases are responsible for severe losses of Pinus and Eucalyptus seedlings in South African forest nurseries. Pathogens such as Botrytis cinerea, Fusarium oxysporum, Rhizoctonia solani, Phytophthora cinnamomi, Cylindrocladium scoparium and Colletotrichum spp. are commonly associated with disease symptoms. Control...
  7. A Preliminary, Annotated List of Foliar Pathogens of <em>Eucalyptus</em> spp, in Chile

    Item type: Journal Article • Journal: South African Forestry Journal
    In an examination of symptomatic Eucalyptus leaves from Chile, several foliicolous fungi were found to be present. These include pathogens such as Aulographina eucalypti, Ceuthospora innumera, Fairmaniella leprosa, Harknessiaglobosa and Thyriopsis sphaerospora. In addition, two distinct species of Mycosphaerella, M...
  8. Foliicolous Fungi of <em>Eucalyptus</em> spp. from Eastern Madagascar: Implications for South Africa

    Item type: Journal Article • Journal: South African Forestry Journal
    A collection of Eucalyptus leaves from Madagascar revealed several foliicolous fungi to be present, most being new records for the country. Known foliar pathogens such as Aulographina eucalypti, Cylindrocladium quinqueseptatum, Kirramyces epicoccoides, Pseudocercospora eucalyptorum, Harknessia hawaiiensis and Mycosphaerella heimii were...
  9. Die Invloed van Bemesting op die Groei van Jong <em>Pinus radiata</em>, in Potte met Twee Tipiese Bosbougronde van die Wes-Kaap

    Item type: Journal Article • Journal: South African Forestry Journal
    The effects of N, P and K on Pinus radiata were investigated by growing plants in pots filled with two typical forest soils in the Western Cape. Significant interactions were found. On soil A, a coarse sand from Grabouw, no...