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An evaluation of rootstocks for apricots on sandy soil
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.D. Stadler --- , Republic of South Africa P. J.C. Stassen --- , Republic of South AfricaThe nematode-resistant rootstocks Okinawa and Nemaguard yielded better than all other rootstocks for Royal on sandy soil. Bulida performed best on apricot seedling rootstock followed by Okinawa. Prunus mume did not appear promising for either Royal or Bulida. Both Royal... -
Soil fumigation for lettuce production
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.M. Holcroft --- Department of Horticultural Science, Republic of South Africa I.E. Smith --- Department of Horticultural Science, Republic of South AfricaA Clovelly soil in Tala Valley (Natal) was fumigated with different concentrations of dazomet (300, 400, 500 kg ha−1) (granular formulation), and metham sodium (500, 750, 1000 L ha−1) (liquid formulation). Half the treatments were covered with plastic sheets during... -
Host suitability of South African and foreign soybean cultivars to Meloidogyne incognita race 2
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H. Fourie --- , South Africa A.H. McDonald --- , South Africa D. De Waele --- laboratory of Tropical and Crop Improvement, BelgiumEighty-five local and foreign soybean (Glycine max (L.) Merr.) genotypes, including cultivars and breeding lines, were evaluated for host suitability to Meloidogyne incognita race 2 in two separate greenhouse experiments. In vivo reared M. incognita race 2 second-stage juveniles (J2)... -
Honeybush (Cyclopia spp.) response to phosphorus fertilisation and mulching
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.E. Joubert --- , South Africa P.S. Botma --- , South Africa W. A.G. Kotzé --- , South Africa J. Wooldridge --- , South AfricaHoneybush (Cyclopia spp.) is endemic to the Western- and Eastern Cape where it grows naturally in sandy, acidic, low- phosphorus (P) soils. The effects of different rates of applied P, and of mulches, on the growth of four honeybush species... -
Host suitability of selected South African maize genotypes to the root-knot nematode species Meloidogyne incognita race 2 and Meloidogyne javanica: A preliminary study
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.L. Ngobeni --- , South Africa H. Fourie --- , South Africa A.H. Mc Donald --- , South Africa P.W. Mashela --- , South AfricaThirty-one commercial maize (Zea mays L.) hybrids and open-pollinated varieties (OPV’s) were screened in separate greenhouse trials with a resistant inbred line MP712W as reference genotype for host suitability to Mel-oidogyne incognita race 2 and Meloidogyne javanica. Approximately 10 000... -
Evaluation of Desmodium uncinatum, Fagopyrum esculentum and Brachiaria humidicola as potential green manure crops for nematode management in sugarcane
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Ruth Rhodes --- South African Sugarcane Research Institute, South Africa Shaun D Berry --- South African Sugarcane Research Institute, South Africa Prabashnie V Ramouthar --- South African Sugarcane Research Institute, South Africa R Stuart Rutherford --- South African Sugarcane Research Institute, South AfricaPlant-parasitic nematodes remain a challenge to sugarcane growers in South Africa, and alternatives to chemical control are desirable. This project aimed to determine the impact of green manure crops Desmodium uncinatum, Fagopyrum esculentum and Brachiaria humidicola on nematodes and subsequent... -
FRESHWATER NEMATODES FROM SOUTH AFRICA 3. TOBRILUS ANDRÁSSY, 1959
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: A.P. Joubert --- Zoology Department, South Africa J. Heyns --- Zoology Department, South AfricaDuring a survey of freshwater nematodes in South Africa, six species of Tobrilus Andrássy, 1959 were encountered. The six species, four of which are new to science, are described and figured, viz. Tobrilus annetteae, n.sp.; T. heptapapillatus n.sp.; T. stefanskii... -
Effects of 17-α-estradiol on a free-living marine nematode community: a microcosm experiment
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Essid --- Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, Tunisia F Boufahja --- Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, Tunisia H Beyrem --- Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, Tunisia P Aïssa --- Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, Tunisia E Mahmoudi --- Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, TunisiaA microcosm experiment was used to examine the effects of 17-α-estradiol on a nematode community. Four 17-α-estradiol concentrations (0.15, 0.31, 0.62 and 1.24 ppm) were tested, and effects were examined after 30 days. Significant differences were noted between nematode assemblages... -
Spatial diversity of nematode and copepod genera of the coral degradation zone along the Kenyan coast, including a test for the use of higher-taxon surrogacy
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M De Troch M Raes A Muthumbi H Gheerardyn A VanreuselThe biodiversity of meiofauna in the coral degradation zone along the Kenyan coast was examined with special emphasis on the most abundant taxa, Copepoda and Nematoda. Communities from three microhabitat types (coralline sediment, coral gravel and coral fragments) at two... -
Greenhouse evaluation of deficit irrigation on the growth of tomato and eggplant and their interactions with Meloidogyne javanica
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Osama Mohawesh --- Department of Plant Production and Integrated Pest Management, Faculty of Agriculture, Jordan Muwaffaq Karajeh --- Department of Plant Production and Integrated Pest Management, Faculty of Agriculture, JordanDeficit irrigation is considered to be an important approach for crop cultivation in dry regions where water resources are scarce. Deficit irrigation can be used also to decrease the level of infections by some moisturedependent plant pests and diseases such... -
The occurrence of metazoan endoparasites of Schilbe intermedius Rüppell, 1832 from the Nwanedi-Luphephe Dams in the Limpopo River System, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: W.J. Smit --- Department of Biodiversity, South Africa W.J. Luus-Powell --- Department of Biodiversity, South AfricaThe present study deals with the survey of endoparasites from Schilbe intermedius (silver catfish) at the Nwanedi-Luphephe Dams from July 2009 to May 2010. The hosts (n = 60) were collected using gill nets and examined for endoparasites. The following... -
Distribution of Contracaecum (Nematoda: Anisakidae) larvae in freshwater fish from the northern regions of South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Sareh Tavakol --- Department of Biodiversity, University of Limpopo, South Africa Willem J Smit --- Department of Biodiversity, University of Limpopo, South Africa Joseph R Sara --- Department of Biodiversity, University of Limpopo, South Africa Ali Halajian --- Department of Biodiversity, University of Limpopo, South Africa Wilmien J Luus-Powell --- Department of Biodiversity, University of Limpopo, South AfricaA total of 1 847 fishes (16 species) from 14 reservoirs in northern and north-eastern regions of South Africa were collected and examined for larval Contracaecum spp. between 2005 and 2013. This study, the first to examine several potential second... -
Comparison of Production Performance and Tolerance to Helminthosis of Toggenburg and Norwegian Crossbred Goats Under Smallholder Production Systems in Tanzania
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: S. W. Chenyambuga --- Department of Animal Science and Production, Tanzania D. S. Shija --- Department of Animal Science and Production, Tanzania L. J. M. Kusiluka --- The Nelson Mandela African Institute of Science and Technology, Tanzania F. P. Lekule --- Department of Animal Science and Production, TanzaniaThis study was carried out to compare the growth rate, lactation performance and tolerance to gastrointestinal nematode infection of Toggenburg and Norwegian breeds in Kongwa district, Tanzania with a semi-arid environment and Mvomero district with a sub-humid environment. Milk production... -
Field evaluation of deficit irrigation effects on tomato growth performance, water-use efficiency and control of parasitic nematode infection
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Osama Mohawesh --- Department of Plant Production, JordanTwo field experiments were conducted using a common tomato cultivar (GS12) to assess the effect of deficit irrigation (DI) regimes on tomato growth performance, and on root-knot nematode Meloidogyne javanica galling and abundance. Irrigation treatments consisted of five irrigation regimes:... -
Nematode assemblages and soil microbial communities in soils associated with glyphosate-resistant soybean
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Chantelle Girgan --- Nematology Unit, Biosystematics Division, Agricultural Research Council-Plant Health and Protection, South Africa Sarina Claassens --- Unit for Environmental Sciences and Management, South Africa Hendrika Fourie --- Unit for Environmental Sciences and Management, South AfricaThe introduction of genetically modified glyphosate-resistant (GR) crops led to increased use of glyphosate, with potential long-term effects on biological soil communities. Abundance and diversity of plant-parasitic and non-parasitic nematodes, as well as microbial community structure in the rhizosphere of... -
Larvicidal activities of local Bacillus thuringiensis isolates and toxins from nematode bacterial symbionts against the Rift Valley fever vector, Aedes caspius (Diptera: Culicidae)
Item type: Journal Article • Journal: African Zoology • Authors: Ashraf M Ahmed --- , Saudi Arabia Talat A El-Kersh --- , Saudi Arabia Hamdy I Hussein --- , Saudi Arabia Tahany H Ayaad --- , Saudi Arabia Hanan A El-Sadawy --- , Egypt Mohamed S Ibrahim --- , Saudi Arabia Mikky A Amoudi --- , Saudi Arabia Ghaleb M Aseery --- , Saudi ArabiaMosquito resistance to insecticides has recently increased the burden of the majority of mosquito-borne diseases, and controlling the spread of these diseases should mainly rely on vector control measures. The present study aimed to investigate the toxicity of locally isolated... -
Evaluation of an improved Katambora grass cultivar G HR1 for root-knot nematode management in tobacco
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Privilege T Makunde --- , Zimbabwe Susan Dimbi --- , Zimbabwe Tafadzwa S Mahere --- , Zimbabwe Stanford Banana --- , Zimbabwe Cleopas C Chinheya --- , ZimbabweIncreased environmental, human and animal health concern with nematicides use in controlling root-knot nematode (Meloidogyne spp.) in tobacco (Nicotiana tabacum L.) has fostered the need to find environmentally-friendly alternatives. Among these alternatives is the use of non-host crops in rotation... -
Abundance and distribution of plant-parasitic nematodes in tomatoes grown in a semi-arid agro-ecological zone in Tanzania
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Liberatus D Lyimo --- , Tanzania Jackline A Bakengesa --- , Tanzania Janeth D Mbuma --- , TanzaniaThe abundance and distribution of plant-parasitic nematodes (PPN) on tomato plants grown in nine villages in the semi-arid zones of Singida and Dodoma in Tanzania were assessed in December 2020. Samples from soil and plant roots were evaluated for abundance,... -
Diet of the namaqualand speckled padloper, homopus signatus signatus, in early spring
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: VictorJ. T. Loehr --- Homopus Research Foundation, NetherlandsA baseline determination of the early spring (August ‐ September) diet of the Namaqualand speckled padloper (Homopus signatus signatus) was accomplished using in situ observation and faecal analysis methods. I analysed 13 focal observations and 49 faecal samples. Tortoises fed...