Problems with garlic
Identify what's wrong by where it appears and what you can see.
Where is the problem?
Start by selecting the part of the plant where you see the problem.
Start with the symptom
Or pick from the symptoms most often seen on garlic.
Common problems with garlic
The problems recorded on garlic, the most common first.
7 problems
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Fungal disease Common
Onion white rot
Onion and garlic leaves yellow and die; the bulb base is covered in white fluff and black specks. -
Fungal disease Common
Rust
Orange, brown or black powdery pustules on leaves, which yellow and fall. -
Pest Common
Thrips
Silvery, flecked patches on leaves and petals, dotted with tiny black specks. -
Pest
Birds
Torn, stripped brassica leaves, pecked fruit, and seeds or seedlings pulled from the soil. -
Pest
Leaf miners
Pale, winding tunnels or blotches inside the leaves. -
Pest
Onion fly
Onion leaves yellow and collapse; maggots have eaten into the bulb. -
Watering
Uneven watering
Dry then soaked: the swing that splits fruit and roots and rots tomatoes at the tip.