June 2021
Articles in this Issue
Replant research overview
A summary of current, completed, and new research. Compiled by Grethe Bestbier. Hortgro Science has supported and funded several research…
Fundamentals of fumigation
Soil fumigation is the standard control measure for apple replant disease in South Africa. By Anna Mouton. Fumigation is tightly…
Alternative control of apple replant disease
Is fumigation the only option? By Anna Mouton. Apple orchards have a limited lifespan, and sites for apple orchards are…
The pot test
By Anna Mouton. One of the challenges of apple replant disease is identifying which soils are affected. “We’ve learnt the…
The basics of apple replant disease
Apple replant disease impacts growers in all major apple-producing countries. Fresh Quarterly spoke with Prof. Adéle McLeod of the Department…
Put your soil to the test
Measuring is the first step in managing soil health. By Grethe Bestbier. Is there life in my soil? What kind…
The benefits of soil health
Laying the groundwork for productive orchards. By Grethe Bestbier. Maintaining soil health is important for many reasons. Soil sustains all…
Predicting bud-break
Do chill units tell us anything? By Anna Mouton. The idea behind chill models is to figure out what trees…
The fundamental flaws of chill models
The fundamental flaws of chill models Why they don’t work well in South Africa. By Anna Mouton. Chill models matter…
Know your chill models
The challenges of calculating chill. By Anna Mouton. The amount of winter chill a deciduous fruit tree receives will affect…
Winter dormancy 101
How it works and why it matters. By Anna Mouton. The ancestors of the apples we grow today probably came…