Systemic control of Rice blast caused by Piricularia oryzae Cav

Ashrafuzzaman, H.

Pakistan Journal of Scientific and Industrial Research 13(1-2): 97-101


ISSN/ISBN: 0030-9885
Accession: 014707770

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Of 13 fungicides tested blasticidin-S and PMA acted systemically and significantly reduced infection by Pyricularia oryzae. When applied at the pin-head stage of development of lesion, blasticidin-S, PMA and du-ter W-50 (triphenyl tin hydroxide) acted as eradicants; they retarded lesion development and controlled blast by reducing sporulation c. half. Fungicide 1991 also controlled blast systemically.