NOUN
- any of several small insects especially aphids that feed by sucking the juices from plants
How To Use plant louse In A Sentence
- The name of the plant louse that infests pear trees is the pear-tree psylla. The Insect Folk
- While growing succeeded there for decades, a plague of the plant louse phylloxera, followed by Prohibition and then the Depression, set the region back for years.
