However, successful use of these cultivars demands the accurate identification of Meloidogyne species and races. This, in turn, depends on close collaboration between plant breeders and plant-parasitic nematologists.
Plant-parasitic nematodes are a costly burden in crop production. Omnipresent in nature, they are associated with nearly every important agricultural crop and are a significant constraint on global food security.
Root-knot and reniform (Rotylenchulus spp) nematodes cause an estimated US$2,6 billion (about R45,2 billion) worth of damage to sweet potato crops worldwide every year. In South Africa, the root-knot nematode (Meloidogyne spp), cyst nematode (Heterodera spp and Globodera spp) and lesion nematode (Pratylenchus spp) top the list of the most economically and scientifically important species due to their complex relationship with their host plants, their wide host range and the level of damage caused to the crop following infection.
WHICH CULTIVARS HOST NEMATODES?
Esta historia es de la edición September 04, 2020 de Farmer's Weekly.
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Esta historia es de la edición September 04, 2020 de Farmer's Weekly.
Comience su prueba gratuita de Magzter GOLD de 7 días para acceder a miles de historias premium seleccionadas y a más de 8500 revistas y periódicos.
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Ireland potato farmers unable to complete planting
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Retail giants are calling for caution when using biologicals and chemical pesticides,
Big boost for mohair producers in Eastern Cape
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KZN Youth Show at Roval Agricultural Exhibition
The KZN Youth Show will run from Friday, 24 May to Sunday, 26 May at the Royal Showgrounds in Pietermaritzburg.
Hemp permits and irrigation system handed over
In an effort to fast-track the entry of rural farmers into the cannabis and hemp industries, KwaZuluNatal Minister for Agriculture and Rural Development, Super Zuma, visited the Shukasibheme Project in Mbazwana, a co-operative in Mseleni, uMhlabuyalingana in the Umkhanyakude District, to hand over cannabis and hemp permits as well as a borehole and irrigation system.
Meet some of the heroes behind avitourism destinations
Exploring what the Garden Route offers birdwatchers, Brian Berkman discovers some special people who run hospitable places to meet and see a variety of species.
What the Citrus Academy offers aspiring producers
Cobus du Plessis takes a look at the Citrus Growers' Association of Southern Africa's Citrus Academy and how it is helping to develop aspiring farmers in the sector.
Natural-born killers of the insect world
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Seeder kick-starts vegetation in challenging environments
Dr George Craven of Noorspoort, Steytlerville, in the south-eastern Karoo, is successfully using a home-built 'bedstead seeder' to re-establish veld plants in an arid area, writes Roelof Bezuidenhout.