Author(s): Ahmed El-Tayeb, Ahmed Mussa and Yahia Mohammed Makki
Article publication date: 1987-04-01
Vol. 5 No. 1 (yearly), pp. 55-63.
150
Keywords
fungicides, seeds, chemical treatment
Abstract
The five fungicides Bavistin, Benlate, Cozib 62, Daconil W-75 and Dithane were tested for their efficacy against Alternaria alternata and Fusarium roseum which were isolated from two varieties of wheat in the laboratory. Cozib, Dithane and Benlate, proved to be efficient seed fungicides; Daconil was less efficient.
Alternaria alternata was present as a seed saprophyte on almost all seeds of the LYP- 73 wheat variety brought from Pakistan and germinated in petri dishes. Both A. alternata and the F. roseum were present on the Maxipack variety from the Al-Hassa area. Cozib and Dithane were the only two chemicals which controlled both Alternaria alternata and the F. roseum. Benlate controlled only the F. roseum.
Implications of these results for the chemical treatment of these crops are discussed.