rootworm

American  

[root-wurm, root-] / ˈrutˌwɜrm, ˈrʊt- /

noun

1. the larva of any of several insects, as the cucumber beetle, that feeds on the roots root of plants.

2. any of several nematodes, especially of the genus Heterodera, that puncture and feed in the roots root of plants.

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Etymology

Origin of rootworm

First recorded in 1795–1805; root ¹ + worm

Example Sentences

CO2 may play an important role in attracting the rootworm, “but roots are emitting a lot of different compounds,” Eilers says.

From Scientific American

The western corn rootworm beetle grows to only the length of a grain of rice.

From Scientific American

In the months leading up to the bee crisis, clothianidin, developed by Bayer Crop Science from a class of insecticides called neonicotinoids, had been used up and down the Rhine following an outbreak of corn rootworm.

From The Guardian

There, a tiny introduced parasitic wasp called Trichogramma brassicae has become a key weapon against the corn rootworm, a major pest.

From Science Magazine

Last year, the E.P.A. approved the first RNAi-based insecticides for use against another pest, corn rootworm.

From New York Times