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[R] _ This group of plants is cultivated essentially for oil production, for either nutritional or industrial consumption.
- They occur in diverse botanical families. In Europe the principal oleaginous plants are oilseed rape, sunflower and olive: others are soya-bean and flax. On an international scale, two other crops are important: the oil palm and peanut; the Spanish cartham is also noteworthy.
- There are other crops from which it is possible to extract oil (walnut, corn, hazel-nut, grape seeds, etc.), but these are secondary uses and are not considered part of the oleaginous crop group.
- Many oleaginous crops are also rich in proteins and are therefore called oleoprotinaceous (soya-bean, sunflower, rapeseed). After oil extraction, the protein-rich residues are transformed into oil-seed cakes and used as animal feed.
- As a result of the scarcity of nutritional sources of fat during World War II, the use of oleaginous crops has since been considerably developed. It has been greatly increasing over the past few years.
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-The phytosanitary problems are quite diverse and vary with each crop.

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HYPPZ on line: Species (scientific names), Pests (common names), Glossary, Crops.

HYP3 : HYPP Phytopathology.

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