Lettuce troubles |
Adverse conditions | Bolting · Calcium deficiency · Phosphorus deficiency |
Diseases | Aster yellows · Bacterial leaf spot of lettuce · Downey mildew · Grey mould · Lettuce infectious yellows virus · Mosaic virus · Sclerotinia rot |
Pests | Aphid · Cutworm · Flea beetle · Root-knot nematode · Slug |