@article{vazquez_aquino_norman_martinet_sandoval_corona_strider_1997, title={First report of white rust of gerbera caused by Albugo tragopogonis in North America.}, volume={81}, ISSN={["0191-2917"]}, DOI={10.1094/PDIS.1997.81.2.228A}, abstractNote={ In October, 1995, in Villa Guerrero, Mexico, white erumpent sori were detected on the undersurfaces of leaves of a bed of African daisy (Gerbera jamesonii H. Bolus ex J. D. Hook.). The white sori on the undersurfaces of leaves corresponded to chlorotic spots on the upper leaf surfaces. All gerbera plants examined were severely diseased. The gerbera planting was adjacent to a planting of chrysanthemums with symptoms of white rust caused by Puccinia horiana Henn. Symptoms on the leaves of the two crops looked similar, and therefore P. horiana was suspected of causing both diseases. However, when subepidermal sori (pustules) on Gerbera plants were examined microscopically, erumpent chains of round to cylindrical, hyaline to pale yellow sporangiospores borne on short club-shaped sporangiophores were found. The sporangiospores are typical of Albugo tragopogonis (Pers.) S. F. Gray, and it was concluded that the white rust found on gerbera in Villa Guerrero, Mexico, was caused by A. tragopogonis. This disease was reported on gerbera from Australia and New Zealand in 1965 (1) and from Spain in 1977 (2). Other hosts of A. tragopogonis include members in the genera Pericallis (cineraria), Centaurea (dusty miller, basket flower, cornflower, bachelor's-buttons), Ambrosia (common ragweed), Tragopogon (salsify), Antennaria (everlasting, pussytoes), Artemisia (wormwort, mugwort), Cirsium (thistle), Matricaria (false chamomile, pineapple weed), Iva (marshelder), Parthenium (guayule, American feverfew), and Xanthium (common cocklebur, spiny cocklebur). This is the first report of white rust of gerbera caused by A. tragopogonis in North America, and may represent a new disease problem for species of important floral crops in the future. }, number={2}, journal={PLANT DISEASE}, author={Vazquez, GL and Aquino, MJ and Norman, MT and Martinet, FA and Sandoval, RV and Corona, RMC and Strider, DL}, year={1997}, month={Feb}, pages={228–228} } @article{strider_1995, title={White rust of chrysanthemum: A review = La roya blanca del crisantemo: Una revision}, volume={1}, number={3}, journal={Revista Chapingo Serie Horticultura}, author={Strider, D. L.}, year={1995}, pages={109} } @article{strider_1994, title={Chrysanthemum diseases: A growers' guide}, volume={1}, number={1}, journal={Revista Chapingo Serie Horticultura}, author={Strider, D. L.}, year={1994}, pages={131} } @article{strider_1986, title={Chemical control of bacterial leaf spot of garden chrysanthemums caused by Pseudomonas cichorii}, volume={30}, number={3}, journal={North Carolina Flower Growers' Bulletin}, author={Strider, D. L.}, year={1986}, pages={1} } @article{strider_1986, title={Resistance of chrysanthemum cultivars to fusarium wilt: An updated compilation}, volume={30}, number={6}, journal={North Carolina Flower Growers' Bulletin}, author={Strider, D. L.}, year={1986}, pages={8} } @article{strider_jones_1986, title={Susceptibility of chrysanthemums to bacterial leaf spot and bud blight caused by Pseudomonas cichorii}, volume={30}, number={2}, journal={North Carolina Flower Growers' Bulletin}, author={Strider, D. L. and Jones, R. K.}, year={1986}, pages={22} } @article{strider_1986, title={Susceptibility of marigold cultivars to southern bacterial wilt caused by Pseudomonas solanacearum}, volume={30}, number={1}, journal={North Carolina Flower Growers' Bulletin}, author={Strider, D. L.}, year={1986}, pages={4} } @article{strider_jones_1985, title={Fungicide usage on poinsettias in bloom}, volume={29}, number={1}, journal={North Carolina Flower Growers' Bulletin}, author={Strider, D. L. and Jones, R. K.}, year={1985}, pages={12} } @article{strider_1985, title={Resistance of chrysanthemum cultivars to fusarium wilt: A compilation}, volume={29}, number={4}, journal={North Carolina Flower Growers' Bulletin}, author={Strider, D. L.}, year={1985}, pages={1} } @article{strider_jones_1984, title={Captan and ferbam drenches to control damping off may cause injury to some seedlings}, volume={28}, number={1}, journal={North Carolina Flower Growers' Bulletin}, author={Strider, D. L. and Jones, R. K.}, year={1984}, pages={12} } @article{strider_jones_1981, title={Can Truban 30 WP be used safely for drenching plants in polystyrene containers?}, volume={25}, number={3}, journal={North Carolina Flower Growers' Bulletin}, author={Strider, D. L. and Jones, R. K.}, year={1981}, pages={12} } @article{strider_1980, title={Control of bacterial leaf spot of zinnia with captan}, volume={64}, number={10}, journal={Plant Disease}, author={Strider, D. L.}, year={1980}, pages={920} } @article{strider_jones_1977, title={Bacterial leaf spot and bud blight of chrysanthemum}, volume={21}, number={2}, journal={North Carolina Flower Growers' Bulletin}, author={Strider, D. L. and Jones, R. K.}, year={1977}, pages={7} } @article{strider_1976, title={Increased prevalence of powdery mildew of azalea and rhododendron in North Carolina}, volume={60}, number={2}, journal={Plant Disease Reporter}, author={Strider, D. L.}, year={1976}, pages={149} } @article{strider_1976, title={Resistance of kalanchoe to powdery mildew and efficacy of fungicides for control of the disease}, volume={60}, number={1}, journal={Plant Disease Reporter}, author={Strider, D. L.}, year={1976}, pages={45} } @article{strider_love_1976, title={The effect of foliar applications of fungicides on bud break of kalanchoe}, volume={20}, number={2}, journal={North Carolina Flower Growers' Bulletin}, author={Strider, D. L. and Love, J. W.}, year={1976}, pages={9} } @article{strider_1975, title={Kalanchoe powdery mildew}, volume={19}, number={4}, journal={North Carolina Flower Growers' Bulletin}, author={Strider, D. L.}, year={1975}, pages={5} } @article{strider_1975, title={Rhizoctonia root rot control of poinsettia}, volume={19}, number={5}, journal={North Carolina Flower Growers' Bulletin}, author={Strider, D. L.}, year={1975}, pages={5} } @article{strider_1974, title={Resistance of Rieger elatior begonias to powdery mildew and efficacy of fungicides for control of the disease}, volume={58}, number={10}, journal={Plant Disease Reporter}, author={Strider, D. L.}, year={1974}, pages={875} } @article{strider_1973, title={Bacterial leaf and flower spot of zinnia in North Carolina}, volume={57}, number={12}, journal={Plant Disease Reporter}, author={Strider, D. L.}, year={1973}, pages={1020} } @article{strider_1973, title={Control of Aphelenchoides fragariae of Rieger begonias}, volume={57}, number={12}, journal={Plant Disease Reporter}, author={Strider, D. L.}, year={1973}, pages={1015} } @article{strider_1973, title={Damping-off of statice caused by Botrytis cinerea and its control}, volume={57}, number={11}, journal={Plant Disease Reporter}, author={Strider, D. L.}, year={1973}, pages={969} }