Home Crops

Crops

Russian wheat aphid: sustainable solutions to fight resistance

Russian wheat aphid is showing increased cultivar and pesticide resistance, according to entomologist Dr Astrid Jankielsohn of the Agricultural Research Council. She has identified a new biotype, bringing to five the number seen in South Africa.

Don’t take shortcuts with seedlings

When I mention seedlings in my articles, you may take it for granted that I’m referring to professionally grown seedlings in cavity seedling trays. The reason is that it is extremely difficult for the average farmer, let alone a new farmer, to grow seedlings successfully.

Higher temperatures increase risk of apple scab infection

The dramatic increase in South Africa’s average winter temperature over the past 40 years has altered the susceptibility of apples to fungal disease, with fungi showing a much faster adaptation rate to changing temperatures than apples, writes Dr Julia Meitz-Hopkins, a researcher in the Department of Plant Pathology at Stellenbosch University.

Parasitoids vs chemicals

When the leaf miner first hit South Africa, the results were nothing short of devastating.

Optimal liming is key to preventing soil acidification

As much as 30% of South Africa’s agricultural soil resource is deemed to be acidifying, mostly due to inefficient or incorrect liming practices. This is according to a recent presentation by Dr Pieter Haumann, CEO of the Fertilizer Association of Southern Africa.

New irrigation systems: making do with less

With dwindling water supplies and a greater emphasis on efficient use of resources, irrigation technology is evolving to make do with less. While the initial capital costs of the latest equipment and software may be high, its increased efficiency, higher yield and reduced water usage cannot be beaten. Lindi Botha spoke to experts about the latest advances in irrigation.

Choosing the right lettuce variety

Iceberg lettuce has a good number of outer leaves, which help protect the head during transport and handling.

Don’t be beaten by bollworm

The African bollworm (Helicoverpa armigera) is normally a sporadic pest; it tends to arrive on lettuce plants in bursts, rather than gradually increasing in number.
Sponsored

Soil health integral to sustainable conservation farming

Conservation agriculture (CA) is an affordable approach for farmers, involving the adoption of regenerative agriculture principles and practices, with the potential to improve food security.

Know your armyworm species

Effective control of armyworm begins with being able to differentiate between the various species. South African crop farmers need to learn and apply this skill, Dr Annemie Erasmus of the Agricultural Research Council’s Grain Crops Institute told Annelie Coleman.

Ginger: a challenging crop, but well worth the effort

Cultivating ginger is costly on all fronts: time, labour and water. But managed correctly, the crop adds good cash flow to a farming business. Jaco Lubbe of Sabie Valley Ginger in Mpumalanga spoke to Lindi Botha about getting this demanding rhizome to pay off.

Family farm harvests 50t of carrots a day all year round

Bloemfontein farmer Johannes Griesel started producing carrots on 0,5ha. Today, he grows thousands of tons of this staple crop, harvesting it on every working day of the year.

WHAT TO READ NEXT

SA table grape crop estimate signals return to normal volumes

The South African Table Grape Industry’s (SATI) first crop estimate for the 2020/2021 season is signalling a return to normal production volumes, following mostly climate-related challenges in recent years.

Food Security Webinar

Send this to a friend