Norman Criddle, born in 1875 in

Addlestone Addlestone ( or ) is a town in Surrey, England. It is located approximately southwest of London. The town is the administrative centre of the Borough of Runnymede, of which it is the largest settlement. History The town is recorded as ''Attels ...

, Surrey, England, died in 1933 in

Winnipeg Winnipeg () is the capital and largest city of the province of Manitoba in Canada. It is centred on the confluence of the Red and Assiniboine rivers, near the longitudinal centre of North America. , Winnipeg had a city population of 749,6 ...

, Manitoba, Canada, was an

entomologist Entomology () is the scientific study of insects, a branch of zoology. In the past the term "insect" was less specific, and historically the definition of entomology would also include the study of animals in other arthropod groups, such as arach ...

active in the early development of control strategies for agriculturally important

grasshopper Grasshoppers are a group of insects belonging to the suborder Caelifera. They are among what is possibly the most ancient living group of chewing herbivorous insects, dating back to the early Triassic around 250 million years ago. Grasshopp ...

s (Insecta:

Orthoptera Orthoptera () is an order of insects that comprises the grasshoppers, locusts, and crickets, including closely related insects, such as the bush crickets or katydids and wētā. The order is subdivided into two suborders: Caelifera – grassho ...

) in the

prairie Prairies are ecosystems considered part of the temperate grasslands, savannas, and shrublands biome by ecologists, based on similar temperate climates, moderate rainfall, and a composition of grasses, herbs, and shrubs, rather than trees, as the ...

croplands A farm (also called an agricultural holding) is an area of land that is devoted primarily to agricultural processes with the primary objective of producing food and other crops; it is the basic facility in food production. The name is used fo ...

western North America Western North America is the western edge of the North American continent that borders the Pacific Ocean. It consists of Alaska at the farthest north, down through the western Canadian province of British Columbia, the western U.S. states of Wa ...

, as well as a naturalist-artist.

Career

In 1902, faced with

food crop A crop is a plant that can be grown and harvested extensively for profit or subsistence. When the plants of the same kind are cultivated at one place on a large scale, it is called a crop. Most crops are cultivated in agriculture or hydroponics ...

devastation from a peak in the population of grasshoppers, Criddle developed a mixture of

pesticidal Pesticides are substances that are meant to control pests. This includes herbicide, insecticide, nematicide, molluscicide, piscicide, avicide, rodenticide, bactericide, insect repellent, animal repellent, microbicide, fungicide, and lamp ...

toxins A toxin is a naturally occurring organic poison produced by metabolic activities of living cells or organisms. Toxins occur especially as a protein or conjugated protein. The term toxin was first used by organic chemist Ludwig Brieger (1849–1 ...

called the "Criddle Mixture" to combat them, and was hired by the

provincial Provincial may refer to: Government & Administration * Provincial capitals, an administrative sub-national capital of a country * Provincial city (disambiguation) * Provincial minister (disambiguation) * Provincial Secretary, a position in Can ...

government to demonstrate its use to farmers. In 1913 the Manitoba government hired him as an entomological field officer, and in 1919 he was appointed the provincial entomologist. Gifted with considerable artistic ability, Criddle illustrated a number of agricultural books; his and Dr. James Fletcher's ''Fodder and Pasture Plants'' and ''Farm Weeds of Canada'' are especially noteworthy.

Education & Honors

Criddle was awarded an honorary diploma from the

Manitoba Agricultural College , image_map = Manitoba in Canada 2.svg , map_alt = Map showing Manitoba's location in the centre of Southern Canada , Label_map = yes , coordinates = , capital = Winn ...

, was

honorary president A title is one or more words used before or after a person's name, in certain contexts. It may signify either generation, an official position, or a professional or academic qualification. In some languages, titles may be inserted between the f ...

of the Natural History Society of Manitoba from 1925 to 1933, and a member of the Manitoba Agricultural Hall of Fame. His family's homestead in Aweme, Manitoba, the Criddle/Vane Homestead, has been declared a Manitoba Provincial Heritage Park.Holliday, 2006, ''op.cit.''

Publications

Criddle authored and illustrated a number of works between 1906 and 1934. *

References

External links

Norman Criddle (1875-1933) Manitoba Agricultural Hall of Fame
{{DEFAULTSORT:Criddle, Norman Canadian entomologists 1875 births 1933 deaths People from Addlestone People from Westman Region, Manitoba Scientists from Manitoba

Career

Education & Honors

Publications

See also

References

External links