野燕麦是加拿大和美国北部平原令人烦恼的杂草。自从随早期移民谷物种子混杂引入以后,野燕麦得以繁衍,并迅速蔓延。目前在美国发生面积2800万英亩,加拿大7000万英亩。每年由野燕麦造成的损失,美国为3～5亿美元,加拿大为9.7亿美元。早在1930年,L. R. 瓦尔君(Waldron)就阐明野燕麦是一种恶性杂草,而现代杂草防除的技术成果也没有排除野燕麦是恶性杂草的范围。 Wild oats are troublesome weeds in Canada and the northern plains of the United States. Wild oat has multiplied and spread rapidly since it was introduced with the early immigrant cereal seeds. There are currently 28 million acres in the United States and 70 million acres in Canada. The annual loss caused by wild oats is between US $ 350 million and U.S. $ 970 million in Canada. As early as 1930, R. Waldron clarified that wild oats are a malignant weed, and the technological achievements of modern weed control do not rule out that wild oats are the area of ​​malignant weeds.