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Some observations on rodent and antelope damage in commercial forest plantations
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: N.S. Eccles --- , Republic of South Africa K.M. Little --- , Republic of South AfricaThe impact of various weeding and site-preparation treatments on Acacia mearnsii and Pinus patula damage by mammalian pests was assessed. Browsing by small antelope on Acacia mearnsii was significantly less in areas where harvesting residues had been retained rather than... -
Post establishment survival of Pinus patula in Mpumalanga, one year after planting
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: J. W. CrousRecent evidence indicated that the pathogen Fusarium circinatum might be contributing significantly to post-planting mortality. Consequently, sixteen experimental sample plots, widely distributed over many localities in Mpumalanga, were established over two growing seasons to quantify the extent of pest and... -
Silviculture and Yield
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D. G.M. Donald --- ,Silvicultural factors affecting yield are briefly examined. It is concluded that while many aspects are significantly improving growth and yield, others are depressing them. Positive aspects are tree breeding, site preparation, fertiliser use, weed control, better silviculture and more enlightened... -
Management of insect pests: Have the goalposts changed with certification?
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Prem Govender --- Department of Zoology and Entomology, Forestry and Agricultural Biotechnology Institute, Republic of South AfricaThe certification of commercial forestry according to the Forest Stewardship Council specifications has successfully occurred in many South Mrican plantations and this trend is set to increase in the future. Various principles and criteria govern the management of insect pests... -
Global forest research, science education and community service positively impacted by a unique Centre of Excellence in Tree Health Biotechnology
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: EmmaT Steenkamp --- Department of Microbiology and Plant Pathology, DST–NRF Centre of Excellence in Tree Health Biotechnology, South Africa MichaelJ Wingfield --- Department of Microbiology and Plant Pathology, DST–NRF Centre of Excellence in Tree Health Biotechnology, South AfricaDespite their importance in ecosystems and biodiversity, very little is known about the health of trees in the native environments of South Africa. The vision and primary goal of the Centre of Excellence in Tree Health Biotechnology (CTHB) is therefore... -
Eucalypt pests and diseases: growing threats to plantation productivity
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: MJ Wingfield B Slippers BP Hurley TA Coutinho BD Wingfield J RouxPlantations of eucalypts (species of Eucalyptus and Corymbia), particularly in the tropics and Southern Hemisphere, have expanded dramatically during the course of the last 100 years. The nature of these plantations has changed substantially as selection, breeding, hybridisation, vegetative propagation... -
Effects of plantation residue management on the community structure of wattle regeneration invertebrate pests in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Prem Govender --- Research Directorate, Faculty of Health Sciences, South AfricaThere is a limited availability of land for the expansion of South African black wattle plantations. One way to increase productivity is to ensure the survival of seedlings during regeneration, thereby increasing the stocking of compartments. Soil invertebrate pests constitute... -
Crop damage by granivorous birds despite protection efforts by human bird scarers in a sorghum field in western Kenya
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Matthew Hiron --- Department of Ecology, Sweden Diana Rubene --- Department of Ecology, Sweden Collins K Mweresa --- International Centre of Insect Physiology and Ecology, Kenya Yvonne UO Ajamma --- International Centre of Insect Physiology and Ecology, Kenya Eunice A Owino --- International Centre of Insect Physiology and Ecology, Kenya Matthew Low --- Department of Ecology, SwedenCereal crop damage from granivorous birds poses a serious food security problem for subsistence farmers in sub-Saharan Africa. In this region, farmers may rely on human ‘bird scarers’ to limit crop damage. Here we report feeding behaviour and crop damage... -
Relative performance of coppice versus seedlings of 16 eucalypt taxa over two rotations in northern coastal Zululand, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: KM Little --- , South Africa RAW Gardner --- , South AfricaFrom the 1980s, Eucalyptus grandis × E. camaldulensis (GC) and E. grandis × E. urophylla (GU) were planted as alternatives to E. grandis for improved productivity in the Zululand coastal regions of South Africa. Although these hybrid combinations provided a... -
Growth and phenology of a three- to four-year-old Sclerocarya birrea international provenance trial in Malawi
Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: PW Chirwa RJ Bwanali G Meke W Sagona CRY Munthali L MwabumbaIndigenous wild fruits of Sclerocarya birrea have been used to supplement diets in time of critical food shortage, generate income when sold and as a source of raw materials for natural food-based industries in many developing countries. However, the widespread... -
Pot trial screening of chemical, biological and natural insecticides for the management of white grubs (Coleoptera: Scarabaeidae) during eucalypt and wattle establishment
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Benice J Sivparsad --- , South Africa Andrew R Morris --- , South Africa Ilaria Germishuizen --- , South AfricaIn South African forest plantations, white grubs (Scarabaeidae larvae) can contribute to high transplant mortality following re-establishment. Currently registered insecticides are considered highly hazardous and their use is restricted by the Forest Stewardship Council (FSC). Therefore, there is an immediate... -
Current and potential threat of psyllids (Hemiptera: Psylloidea) on eucalypts
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Privilege T Makunde --- , South Africa Bernard Slippers --- , South Africa Daniel Burckhardt --- , Switzerland Dalva L de Queiroz --- , Brazil Simon A Lawson --- , Australia Brett P Hurley --- , South AfricaThe introduction of Australian psyllids to non-native ranges across the globe is continually increasing. This is due to an increase in global trade and human movement, exacerbated by climate change. Several psyllids have been recorded as pests of eucalypts in... -
The wheat curl mite (Aceria tosichella, Prostigmata: Eriophyidae) could establish in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Tamryn S Venter --- , South Africa Mark P Robertson --- , South Africa Davina L Saccaggi --- , South Africa Katelyn T Faulkner --- , South AfricaBiological invasions by agricultural pests can have serious negative impacts, including decreases in crop yield and economic losses. The MT-1 and MT-8 genotypes of the wheat curl mite (Aceria tosichella) (hereafter ‘WCM’ refers to these two genotypes) are globally distributed...