A parasitoid wasp (Eupelmus urozonus)
A parasitoid wasp (Eupelmus urozonus) female, 2.5 to 5 mm long. The species is of great economic value in the Mediterranean region as a natural control agent of the Olive fly (fam. Tephritidae, Bactrocera oleae). It has spread widely, including to Australia. Corsica, France
© BIOS PHOTO/AUSCAPE All rights reserved
Biological, Ectoparasite, Eupelmidae, Hymenoptera, Insect, Kills Host, Macrograph, Macrophotograph, Magnification, Magnified, One Animal, Parasite, Pest Control, Side View, Worldwide
Frog shelter in a vegetable bed
Frog shelter. Planks of wood alongside a row of organically grown leeks (Allium porrum 'Musselburgh'). The planks provide a dark and damp shelter for toads and frogs, which predate pests such as slugs and snails. The leeks are are covered by cardboard to cut out light (blanching), which makes them whiter than if they are left uncovered.
© MAXINE ADCOCK/SCIENCE PHOTO LIBRARY
Malaria control operations, 1910s
Malaria control operations. Trees being felled in Panama circa 1910 as part of malaria control operations. After the trees are cleared, a ditch will be dug to drain the standing water, which is acting as a breeding ground for mosquitoes. Control of mosquitoes helps to prevent or reduce the incidence of malaria, as well as several other mosquito-borne diseases. Photographed in New Market Creek Swamp, Panama, during the period of the construction of the Panama Canal (1904 to 1914). Reducing the levels of mosquito-borne diseases like malaria and yellow fever in the workforce was critical to the building of the Panama Canal.
© NATIONAL LIBRARY OF MEDICINE/SCIENCE PHOTO LIBRARY