. Fig. i-jo.—Apheleiichus olesistus. i, surface view of fragment of frond, showing eelworms under the surface of the epidermis. It will be observed that the size of the stomal opening is sufficiently large to admit the passage of the eelworm ; highly mag. ; 2, Pteris droog- mansiana ; 3, Adiantnm capilhis-veneris, form fissa ; 4, Lygodium voliibile. In the last three figs, the dark portions are caused by eelworms ; reduced. are placed in fairly dry air, the migration is checked. I have never seen eggs in the tissues of infested plants, and imagine that they are deposited in the soil in which t
. Fig. i-jo.—Apheleiichus olesistus. i, surface view of fragment of frond, showing eelworms under the surface of the epidermis. It will be observed that the size of the stomal opening is sufficiently large to admit the passage of the eelworm ; highly mag. ; 2, Pteris droog- mansiana ; 3, Adiantnm capilhis-veneris, form fissa ; 4, Lygodium voliibile. In the last three figs, the dark portions are caused by eelworms ; reduced. are placed in fairly dry air, the migration is checked. I have never seen eggs in the tissues of infested plants, and imagine that they are deposited in the soil in which the plant is growing, the eelworms ascending the plants and entering the tissues for feeding purposes only. I have found eelworms in abundance in the soil in which infected plants were growing. In addition to ferns, Aphelertchus lives in the leaves of many
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Photo credit: © The Bookworm Collection / Alamy / Afripics
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Keywords: ., bookpublishernewyorkmacmillan, booksubjectplantdis, bookyear1910
