Category: E

ecto-: Prefix meaning outside. Compare endo-. Understanding prefixes like “ecto-” helps farmers and agricultural scientists accurately describe and manage pests and diseases.

endotoxin: A poison from bacteria which passes into the body when contaminated food is eaten. Managing endotoxins helps farmers ensure food safety and protect consumer health.

enzyme: A protein substance produced by living cells which promotes a biochemical reaction in living organisms. (NOTE: The names of enzymes mostly end with the suffix -ase.) Understanding enzymes helps farmers manage livestock nutrition and health.

ectoparasite: A parasite which lives on the skin or outer surface of its host but feeds by piercing the skin. Compare endoparasite. Managing ectoparasites is crucial for maintaining animal health and productivity on farms.

EN: Abbreviation for 1. Endangered species 2. English Nature. Understanding EN helps farmers contribute to conservation efforts and comply with environmental regulations.

existing chemicals: The chemicals listed in the European Inventory of Existing Commercial Chemical Substances between January 1971 and September 1981, a total of over 100,000. Compare new chemicals. Understanding existing chemicals helps farmers comply with regulations and manage inputs safely.

establishment: 1. The germination and emergence of seedlings. There was a good crop establishment. 2. A period when a newly seeded sward is becoming established. Successful establishment is crucial for farmers to ensure healthy crop growth and yield.

enrichment: The increase in nitrogen, phosphorus, and carbon compounds or other nutrients in water, especially as a result of sewage flow or agricultural run-off, which encourages the growth of algae and other water plants. Understanding enrichment helps farmers manage nutrient runoff and protect water quality.

ewe: An adult female sheep. Managing ewes is crucial for farmers to ensure healthy lamb production and flock management.

elder: A small tree (Sambucus nigra) with little black berries used to make wine. Growing elder can provide farmers with additional income from berry and wine production.