Herfskommandowurm: Toevlugsoord benadruk
Die herfskommandowurm (Foto 3) is ’n ernstige plaag op mielies in Suid-Afrika wat skade aanrig aan die kelkblare en aan mieliekoppe. Hierdie kommandowurm kan betekenisvolle opbrengsverliese veroorsaak en moet daarom dringend beheer word.
Bt-mielies wat...
Weed control for HERBICIDE RESISTANCE
September 2018
HESTIA NIENABER, ARC-Small Grain, Bethlehem
Herbicide resistance is a well-known occurrence in many crops in South Africa. Since the first confirmed case of herbicide resistant wild oats in 1986, various cases of herbicide resistance...
Towards more sustainable control of the Russian wheat aphid
September 2018
NOKULUNGA MZIMELA and DR JUSTIN HATTING, ARC-Small Grain, Bethlehem
Following the release of the first Russian wheat aphid (RWA), Diuraphis noxia (Photo 1), resistant cultivar (Tugela-DN) in 1992, host plant resistance has become the backbone of...
The South African Sclerotinia Research Network: Finding management solutions to a devastating pathogen
September 2018
LISA ROTHMANN, Plant Sciences Department, University of the Free State and MIEKIE HUMAN, research assistant, Grain SA
Sclerotinia sclerotiorum is the causal agent of Sclerotinia stem rot on soybean and Sclerotinia head rot on sunflower....
The effects of herbicides on soil life – Part 1: Microbial biomass and respiration
September 2018
DR MARYKE CRAVEN, CHARNÉ MYBURGH, OWEN RHODE and DR JEANETTA SAAYMAN-DU TOIT, ARC-Grain Crops, Potchefstroom
The internet has opened doors of knowledge for everyone to enjoy. Research findings are readily available, which allows the...
Staying one step ahead of the false armyworm
September 2018
DR GODDY PRINSLOO, ARC-Small Grain, Bethlehem
The false armyworm, Leucania loreyi, is a cosmopolitan pest that has been known in South Africa for years, causing minor damage to maize and grain sorghum (Photo 1 and Photo 2)....
Sojaboonentstowwe in Suid-Afrika: ‘n Vervaardigersperspektief
September 2018
WILMA MAC PHERSON, South African Bioproducts Organisation
Die voordeel van sojaboonproduksie in rotasie met mielies – en dan natuurlik ook die wisseling in mieliepryse – het in die afgelope dekade ‘n dramatiese groei in...
Olieboom, kankerroos, purperwinde – die drie sondebokke
September 2018
DR MARYKE CRAVEN, MARLENE VAN DER WALT en DR JEANETTA SAAYMAN-DU TOIT, LNR-Graangewasse, Potchefstroom
Olieboom, kankerroos en purperwinde is drie onkruide wat tot afgradering van graan kan lei. Die effektiewe beheer van dié onkruide...
New hybrid insect pest spells danger
September 2018
DR WYNAND J VAN DER WALT, FoodNCropBio Consulting and member of Maize Forum Steering Committee
The plant pest environment contains endless pathogens that can mutate, interact with other insects and microbes and can cause...
Increase wheat yield with these fungicides
September 2018
DR TAREKEGN TEREFE and PETRUS DELPORT, ARC-Small Grain, Bethlehem
Fungal diseases infecting aerial plant parts of wheat are widely found in South Africa. Leaf diseases which frequently occur on bread wheat include leaf rust,...
