Serangga:
- belatung bawang (Delia antiqua)
- Thrips (Thrips tabaci)
- Laleur bawang (Eumerus spp.)
- Cacing potong (Agrotis spp.)
- Aphids (Aphis spp.)
fungi:
- Busuk bodas (Sclerotium cepivorum)
- Jamur Downy (Peronospora destruktor)
- Akar pink (Phoma terrestris)
- Fusarium basal rot (Fusarium oxysporum f. sp. cepae)
Virus:
- Onion yellow dwarf virus (OYDV)
- Iris yellow spot virus (IYSV)
- Virus mosaik bawang (OMV)
- Virus rattle bako (TRV)
Hama séjén:
- Nematoda (Ditylenchus dipsaci)
- Tungau bohlam (Rhizoglyphus spp.)
- Rodents (sapertos vole sareng beurit)
Perlu dicatet yén parah sareng dampak hama ieu tiasa bénten-béda gumantung kana daérah sareng iklim khusus, ogé prakték budidaya anu dianggo.