Cabbage is often targeted by the diamondback moth (Plutella xylostella) (DBM), and an infestation of this pest can ruin an entire harvest. But a remarkably effective parasitoid wasp called Cotesia vestalis can rid the crop of DBM larvae.
A number of other parasitoids attack DBMs, but I find C. vestalis to be the most abundant and effective. However, very few cabbage farmers know about the role that this predator can play in an IPM programme. I’m also unaware of any company that produces it for this purpose.
Unfortunately, because there are no representatives doing the rounds to sell parasitoids and provide information on their management to farmers, there has been relatively little interest in IPM.
ãã®èšäºã¯ Farmer's Weekly ã® October 02, 2020 çã«æ²èŒãããŠããŸãã
7 æ¥éã® Magzter GOLD ç¡æãã©ã€ã¢ã«ãéå§ããŠãäœåãã®å³éžããããã¬ãã¢ã ã¹ããŒãªãŒã8,500 以äžã®éèªãæ°èã«ã¢ã¯ã»ã¹ããŠãã ããã
ãã§ã«è³Œèªè ã§ã ?  ãµã€ã³ã€ã³
ãã®èšäºã¯ Farmer's Weekly ã® October 02, 2020 çã«æ²èŒãããŠããŸãã
7 æ¥éã® Magzter GOLD ç¡æãã©ã€ã¢ã«ãéå§ããŠãäœåãã®å³éžããããã¬ãã¢ã ã¹ããŒãªãŒã8,500 以äžã®éèªãæ°èã«ã¢ã¯ã»ã¹ããŠãã ããã
ãã§ã«è³Œèªè ã§ã? ãµã€ã³ã€ã³
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.
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.
Sowing seeds for the future: unravelling estate planning challenges for farmers
PJ Veldhuizen, managing director of specialist commercial law firm Gillan & Veldhuizen Inc, emphasises the critical role of legal expertise in unravelling the ins and outs of estate planning.
Visiting olive oil producers in Spain
A group of agricultural journalists representing 15 member countries of the International Federation of Agricultural Journalists recently visited the south of Spain to explore the agricultural operations and opportunities unique to that region. Magda du Toit reports.
SA genetics ready to take on the world
The South African Braunvieh has all it takes to become a serious contender in the international red meat production arena, says Gawie Naudé, owner of the award-winning Eduan Braunvieh Stud near Rhodes in the Eastern Cape. Annelie Coleman reports.
Local company serves farmers and communities
Magda du Toit writes about how a company in Limpopo is training and empowering agricultural workers.
Except for pork, meat prices traded lower this past month
While the local livestock industry continues to battle many challenges, an uptick in beef exports as well as the poultry industry's strides to replenish the chicken supply bode well, says Absa AgriBusiness.
Africa goes from net carbon sink to source
New research shows Africa's impact on greenhouse gases and the need to focus on climate-smart agriculture, writes Jyothi Laldas.
Zero-residue fresh produce a reality
Retail giants are calling for caution when using biologicals and chemical pesticides, writes Lindi Botha.