Richard Du Toit / Tsetse fly trap, striped cloth impregnated with insecticide, Moremi WR, Okavango Delta, Botswana

Karl Ammann / Ba'ka pygmy in Cameroon, West Africa being tested for Ebola virus after eating infected gorilla meat. Close genetic correlation between humans and apes means that many of the same viruses and parasite...

Jason Smalley / European rabbit {Oryctolagus cuniculus} scarred by myxamatosis infection, UK.

Doug Perrine / Brain coral {Pseudodiploria strigosa} dieing from Black band disease, Bahamas

Adrian Davies / Dutch elm disease. Galleries caused by beetle {Scolytus sp} on inside of Elm bark. UK

Adrian Davies / Horse chestnut tree (Aesculus hippocastanum) showing discolouration on leaves from infestation by Leaf miner moth (Cameraria ohridella), Surrey, UK. August.

Nigel Cattlin / Broad bean (Vicia faba) leaf with early infection of Faba-bean rust caused by Fungus (Uromyces viciae-fabae).

Nigel Cattlin / Apple canker (Neonectria ditissima) lesion in a branch of an old orchard tree. A fungus diseases, Berkshire, November.

Nigel Cattlin / Exposed Horse chestnut leaf-miner (Cameraria ohridella) larva in mine in tree leaf (Aesculus hippocastanum) Berkshire, England, UK, September.

Nigel Cattlin / Exposed horse chestnut leaf-miner (Cameraria ohridella) larva in mine in a tree leaf (Aesculus hippocastanum) Berkshire, England, UK, September.

Nigel Cattlin / Larva of horse chestnut leaf-miner (Cameraria ohridella) in a leaf mine in a conker leaf (Aesculus hippocastanum) leaf, Berkshire, England, UK, September.

Nigel Cattlin / Damage to horse chestnut (Aesculus hippocastanum) leaf caused by leaf-miner (Cameraria ohridella) larvae, Berkshire, September

Nigel Cattlin / Black spot (Diplocarpon rosae) a fungal disease on rose leaves, Berkshire, England, UK, May

Nigel Cattlin / Typical symptom of blank ears or whiteheads caused by root and stem diseases in a wheat crop, premature ripening

Doug Gimesy / Researcher Ida Lundback (right), with the assistance of volunteer Naomi Wells (left), prepares to take a faecal sample from a captured Little Blue Penguin (Eudyptula minor) before returning it back to...