Phil Savoie / Tawny mining (Andrena fulva) on apple tree blossom (Malus domestica), Monmouthshire, Wales, UK, April.

Phil Savoie / Mining bee (Andrena sp.) on Apple tree (Malus domestica) Ripon, Wisconsin, USA, May.

Nigel Cattlin / Codling moth (Cydia pomonella) caterpillar exit hole on Apple (Malus domestica) fruit.

Nigel Cattlin / Codling moth (Cydia pomonella) caterpillar exit hole on young Apple (Malus domestica) fruit.

Ernie Janes / 'Lady Henniker' apple tree blossom (Malus domestica) Thornham Hall, Suffolk, England, UK.

Nick Upton / Male Blackbird (Turdus merula) feeding on Crab apple (Malus sylvestris), Wiltshire garden, UK, November.

Nick Upton / Grey squirrel (Sciurus carolinensis) eating Crab apple (Malus sylvestris) it has just picked, Wiltshire garden, UK, December.

Nick Upton / Grey squirrel (Sciurus carolinensis) reaching for Crab apple (Malus sylvestris) to eat, Wiltshire garden, UK, December.

Fabrice Cahez / Pine marten (Martes martes) feeding on crab apple, Vosges, France, June.

Alan Williams / Mistletoe (Viscum album) growing on Apple tree (Malus domestica) in orchard Cheshire, England, UK, August.

Alan Williams / Apple (Malus domestica) blossom variety 'Arthur W. Barnes' in orchard, Cheshire, UK, May

Alan Williams / Apple (Malus domestica) blossom variety 'Egremont Russet' in orchard, Cheshire, UK, May

Alan Williams / Apple (Malus domestica) blossom variety 'Egremont Russet' in orchard, Cheshire, UK, May

Laurie Campbell / Crab apples (Malus sylvestris) growing in hedgerow, Berwickshire, Scotland, October.

Laurie Campbell / Crab Apples (Malus sylvestris) wide-angle view, Berwickshire, Scotland, October.

Ernie Janes / Cultivated tulips (Tulipa) with Apple blossom (Malus domestica) in background. April. England, UK.

Ernie Janes / Apple trees (Malus domestica) fan trained or espalier style along garden border. England, UK. May.

Phil Savoie / Blue tit (Cyanistes caeruleus) carrying insect prey to nest, Monmouthshire, Wales, UK. May.

Phil Savoie / Blue tit (Cyanistes caeruleus) carrying insect prey to nest, Monmouthshire, Wales, UK. May.

Phil Savoie / Blue tit (Cyanistes caeruleus) carrying insect prey to nest, Monmouthshire, Wales, UK. May.

Jean E. Roche / Apple (Malus pumila) blossom in organic orchard, Arles, Camargue, France, April.

Jean E. Roche / Apple (Malus pumila) blossom in organic orchard, Arles, Camargue, France, April.

Gary K. Smith / Bramley apples (Malus domestica) in wooden bucket, Norfolk, England UK. October

Gary K. Smith / Windfall Bramley apples (Malus domestica) in basket on lawn, Norfolk, England UK. October

Ernie Janes / Footpath sign against Apple blossom (Malus domestica) and field of Oilseed rape (Brassica napus) in flower, Norfolk, England, UK, March.

Colin Varndell / Wild crab apple (Malus sylvestris) fruit. Dorset, UK October 2010

Donald M. Jones / Ruffed Grouse (Bonasa umbellus) in Crabapple (Malus sp) tree in winter, Troy, Montana

Donald M. Jones / Bohemian Waxwing (Bombycilla garrulus) feeding on Crabapple (Malus sp), Troy, Montana

Roland Seitre / Adult European hornet (Vespa crabro) feeding on an apple (Malus domestica), near Tour, Central France.

Will Watson / Crab apples (Malus sylvestris), windfalls with Apple scab, Herrock Hill, Herefordshire, England, UK. November

John Waters / Mistletoe (Viscum album) growing on old Apple tree, (Malus domestica) Beside River Parrett, near Langport, Somerset, UK. March.

Warwick Sloss / Apple tree (Malus domestica) blossom flowers, Somerset, UK, April.

Warwick Sloss / Apple tree (Malus domestica) blossom flowers, Somerset, UK, April.

Ernie Janes / Bramley apple (Malus domestica) in flower, Norfolk, England, UK, April.

Nigel Cattlin / Wild crab apple (Malus sylvestris) large white to pink flowers and leaves in light woodland against a blue spring sky, Berkshire, England, UK, April,

Nigel Cattlin / Wild crab apple (Malus sylvestris) large white to pink flowers and leaves in light woodland against a blue spring sky, Berkshire, England, UK, April,

Nick Upton / Blue tit (Parus caeruleus) perched on a Crab apple (Malus sylvestris) tree branch in garden, Wiltshire, UK, April.

Nick Upton / Honey bee (Apis mellifera) nectaring on a Crab apple (Malus sylvestnis) flower in a garden, Wiltshire, UK, April.

Ross Hoddinott / Apple tree (Malus domestica) blossom in orchard in spring, Broxwater, Cornwall, UK. April.

Ross Hoddinott / Apple tree (Malus domestica) blossom in orchard in spring, Broxwater, Cornwall, UK. April.

Nick Upton / Blue tit (Parus caeruleus) perched on a Crab apple (Malus sylvestris) tree branch in a garden, fluffing up its feathers to keep warm late in the day, Wiltshire, UK, March.

Nick Upton / Long-tailed tit (Aegithalos caudatus) perched in a Crab apple (Malus sylvestris) tree in a garden, Wiltshire, UK, March.

Nigel Cattlin / Young green Apple (Malus domestica) flower and leaf cluster in spring, Berkshire, England, UK, April