Alex van der Watt
Bloemfontein079 527 7695
Alex van der Watt
Bloemfontein
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Effective from the 1st of October 2024, SA Seed Development (Pty) Ltd, which is a subsidiary of SA Peanuts, has successfully purchased Pannar Seed's wheat business. Your favourite wheat cultivars can now be found at www.saseed.co.za
For more information, please contact the following representatives:
| Technical Questions and Information: Dr. André du Toit, Research and Development Director Email : andre@saseed.com Cell: +27 (82) 550 6019 | General Questions and Information: Terry Tintinger, CEO Email: terry@sapnut.com Cell: +27 (82) 413 7508 | Sales and Distribution: Arné du Toit, Sales and Distribution Director Email: arne@sapnut.com Cell: +27 (82) 376 8991 |
The disease is characterized by small to relatively large
yellowish-brown to cinnamon-brown, oval-shaped pustules appearing
randomly or scattered primarily on the upper surface of the leaf and
leaf sheath of wheat and related grasses. The pustules break through the
epidermis without the epidermal peel being visible.
Fungus: Puccinia triticina (= Puccinia recondita f.sp. tritici)
Common
names: Leaf rust, brown wheat rust; orange leaf wheat rust; brown rust;
orange rust; brown leaf cereal rust; brown cereal rust
Symptoms are most common on stems and upper/lower leaf surfaces.
First seen as elongated elliptical blisters on the leaves/stems of the
plant running parallel to the long leaf/stem axis. Rust pustules are
reddishbrown erupting through the epidermis releasing masses of powdery
rustcoloured spores; tattered epidermal tissue surrounds the uredinia.
Fungus: Puccinia graminis
Common names: Stem rust of cereals; wheat rust; wheat stem rust; stem rust; black stem rust; black rust
Stripe rust is most frequently seen on the leaves. It appears as
bright yellow to orange-yellow closely packed pustules on the leaf
surface in parallel lines between the veins giving leaves the typical
striped appearance, which can progress the length of the leaf blade.
Individual pustules are roughly circular and about 0.5-1 mm in diameter.
Fungus: Puccinia striiformis
Common names: Yellow rust; glume rust; stripe rust
Premature bleaching of infected heads while leaves/stems remain
green. Bleaching can start anywhere on the head and spreads until the
entire head is bleached. If only part of the head is infected, heads
appear white and green. In warm, humid weather, a pinkish fungal growth
with peachcoloured spore masses becomes visible, at the base of the
spikelets.
Fungus: Fusarium graminearum (Gibberella zeae)
Common names: Head blight; Fusarium head blight; FHB; pink mould; whiteheads; tombstone scab
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