Non-flowering or fruiting

General problems

Capsid bug
Fasciation
Thrips

Specific plants

Agapanthus: non-flowering
Apples: biennial bearing
Blackcurrant big bud mite
Camellia: non-flowering
Cherry fruit drop
Container shrubs non-flowering
Courgette failure
Daffodil blindness and poor flowering
Dahlia flower balling
Gardenia bud drop
Indoor hyacinths - non-flowering
Lily beetle
Michaelmas daisy mite
Pear fruitlet gall midge
Phlox eelworm
Rhododendron: non-flowering
Rhododendron bud blast
Runner bean failure
Rose balling
Rose blindness
Shrubs: non flowering in containers
Wisteria: pruning and flower failure