The UJI EFIKASI BIOFUNGISIDA BAHAN AKTIF Streptomyces sp DAN Geobacillus sp. TERHADAP INTENSITAS PENYAKIT BERCAK UNGU PADA BAWANG MERAH (Allium ascalonicum L): shallot , biofungicide, Streptomyces, Geobacillus , Alternaria porri. VIABEL: Jurnal Ilmiah Ilmu-Ilmu Pertanian, [S. l.], v. 16, n. 2, p. 89–100, 2022. DOI: 10.35457/viabel.v16i2.2138. Disponível em: https://ejournal.unisbablitar.ac.id/index.php/viabel/article/view/2138. Acesso em: 10 jan. 2026.