jointworm

A larva of any of various chalcid wasps of the family Eurytomidae, especially of Tetramesa tritici, that infests grains, causing swelling and subsequent breakage near the first joint of the stem.

A jointed worm; an intestinal worm of the genus Tænia; a tapeworm. See cut under Tænia.

The larva of a chalcid hymenopterous parasite of the genus Isosoma, as I. hordei, which is very destructive to crops of barley, wheat, and rye in the United States.

The larva of a small, hymenopterous fly (Eurytoma hordei), which is found in gall-like swellings on the stalks of wheat, usually at or just above the first joint. In some parts of America it does great damage to the crop.

The larva of a hymenopterous fly, found in gall-like swellings on wheatstalks, usually around the first joint.

larva of chalcid flies injurious to the straw of wheat and other grains