June 2022

Predictive models can help growers to better align their spray programmes with infection risk — but how well do they…

The broad-spectrum fungicide mancozeb is the go-to option for apple-scab control. But what happens to mancozeb when it rains? By…

A summary of historical South African research on apple scab starting in 1970 with the work of Dr Wolf Schwabe.…

What is it and what can be done about it? By Anna Mouton. Apple scab or black spot is a…

Grain chinch bugs — Macchiademus diplopterus — are indigenous to the wheat-growing areas of the Western Cape. They are pests…

Hortgro establishes a new phytosanitary laboratory to support market access. By Engela Duvenage. On 14 February 2022, the South African…

Whereas spotted-wing drosophila is the black sheep of an otherwise blameless family, the peach fruit fly is one of the…

Larvae of the light brown apple moth eat pretty much anything — this is never a good sign in a…

What do growers, chocolate lovers, car manufacturers, and homeowners have in common? Hostility to brown marmorated stink bugs. By Anna…

A single outbreak of fire blight in Michigan led to the death of 220 000 apple trees and estimated losses…

Most drosophila fruit flies hang around overripe or rotting fruit. But the spotted-wing drosophila prefers to raise its offspring on…

Ensuring that South African growers can send their fruit to international markets is a full-time job. By Anna Mouton. Lindi…

South African fruit must meet phytosanitary requirements to access certain key markets. How are these determined?