Now showing items 41-50 of 63
Development of fungal biological control of four agriculturally important pests, Sitophilus oryzae, Trialeurodes vaporariorum, Planococcus ficus and Eldana saccharina, in South Africa.
The use of entomopathogenic fungi to control agriculturally important pests, both in greenhouses and in the field, has been demonstrated by various authors for a number of years. This has been brought about by the ...
The epidemiology and control of crucifer chocolate spot.
In the 1991/92 season, a leaf spotting disease of crucifer seedlings appeared at a number of nurseries in Kwazulu-Natal (KZN) Province. Towards the end of 1996, the disease had also been detected in Western and Northern ...
The use of potato and maize disease prediction models using automatic weather stations to time fungicide applications in KwaZulu-Natal.
Maize grey leaf spot (GLS), caused by Cercospora zeae-maydis, and potato late blight (LB), caused by Phytophthora infestans, are foliar diseases of maize and potato, two of the most widely ...
Integrated management of early blight of tomato caused by alternaria solani.
Abstract available in PDF file.
In vitro and in vivo screening of Bacillus spp. for biological control of Rhizoctonia solani.
The increasing concerns about chemical pesticides that are environmentally hazardous and the continuous development of resistance by palhogens to chemical pesticides have led to this study. Many studies have shown that ...
Marker-assisted selection for maize streak virus resistance and concomitant conventional selection for Downy Mildew resistance in a maize population.
Maize streak virus (MSV) disease, transmitted by leafhoppers (Cicadulina mbila, Naude), and maize downy mildew (DM) disease caused by Peronosclerospora sorghi (Weston and Uppal) Shaw, are major contributing factors to low ...
Maize root rot in South Africa.
Numerous fungal species are known to infect maize roots and eventually cause rot. The spectrum of fungi differs over localities as well as their relative frequencies. Fungi isolated from discoloured root tissue and root ...
Shoot apex culture of Acacia mearnsii (De wild)
Research into the micropropagation of black wattle in South Africa is important for two reasons. Firstly micropropagation technology allows breeders to select and propagate mature tissue, which in turn allows them to better ...
Seed-borne pathogens and the bean weevil (Acanthoscelides obtectus) in bean (Phaseolus vulgaris) seed and their effect on seed germination and vigour.
Two semi-selective media, MT and MSP, were compared for their ability to recover cells of the bacteria Xanthomonas axonopodis pv. phaseoli (Xap) and Pseudomonas syringae pv. phaseolicola (Psp), the causal organisms of ...
Investigating induced resistance in sugarcane.
Five potential resistance-inducing chemicals were applied to two sugarcane varieties (N12 and N27) in a pot trial with the aim of inducing resistance to nematodes in naturally-infested soil. BION® (acibenzolar-S-methyl), ...