| Allium troubles |
| Chives · Garlic chives · Leek · Onion · Shallot |
| Adverse conditions | Bolting · Bruising · Manganese deficiency |
| Diseases | Aster yellows · Bacterial soft rot · Centre rot · Black mould · Damping off · Downey mildew · Fusarium basal rot · Iris yellow spot virus · Neck rot · Onion smudge · Onion smut · Onion white rot · Pink root of onion · Purple blotch · Rust · Sour skin · Stemphylium leaf blight · White tip disease · Xanthomonas leaf blight of onion |
| Pests | Cutworm · Leaf miner (Allium leaf miner, Leek moth, Pea leafminer, Vegetable leafminer) · Stem and bulb nematode · Stubby root nematode · Thrips (Onion thrips) · Wireworm |
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