. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. LEGUMINOUS CROPS. 17 the leaves of clover plants. They will be fully described under the heading of " Pea ; The Clover Eelworms {Tylenchus devastdtrix and Tylenchus Havensteinii, Fig. 4) are one of the causes, if not the cause, of " clover sickness.'' They belong to a group of nematoids or " tliread--worms," known as the Anguillulidae. Drs. J. Kuhn {Biedermann's Central- blatt fur Agricultur-Chemie, 1882, p. 270), Havenstein, Taschenberg and oth
. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. LEGUMINOUS CROPS. 17 the leaves of clover plants. They will be fully described under the heading of " Pea ; The Clover Eelworms {Tylenchus devastdtrix and Tylenchus Havensteinii, Fig. 4) are one of the causes, if not the cause, of " clover sickness.'' They belong to a group of nematoids or " tliread--worms," known as the Anguillulidae. Drs. J. Kuhn {Biedermann's Central- blatt fur Agricultur-Chemie, 1882, p. 270), Havenstein, Taschenberg and others in Germany, as well as Mr. Whitehead and Miss Ormerod in this country, consider that " clover sickness " is due to the attacks of Fig. 4.—Clover " Eelwobms " (enlarged). One of the causes of " clover ; These eelworms of clover have rather elongated rounded bodies which taper towards each end : they are not divided into segments (like the true worms), and although they are devoid of limbs, they have considerable powers of locomotion. These nematoids are found on and in the leaves and stems, as well as in the roots of clovers. These organisms thrive only in the living portions of plants, where they extract the plant-juices by means of their suckers, thus causing a diseased condition of clover crops. The nematoids of clover are never actually parasitic, although they seriously injure these crops. It is only C. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Griffiths, A. B. (Arthur Bower), 1859-. London : G. Bell
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