| management of corn leafhopper (homoptera: cicadellidae) and corn stunt disease in sweet corn using reflective mulch. | plastic reflective mulches significantly reduced populations of corn leafhopper, dalbulus maidis (delong & wolcott), adults and the incidence of corn stunt disease caused by spiroplasma kunkelii (css) in late planted sweet corn (zea mays l.). the reflective mulches were more effective than were either foliar or soil applied insecticides in managing both the leafhopper and the pathogen it transmits. yields of marketable ears were 1.5 to 2 times greater in reflective mulch plots than from fallow p ... | 2002 | 12020008 |
| infection and replication sites of spiroplasma kunkelii (class: mollicutes) in midgut and malpighian tubules of the leafhopper dalbulus maidis. | spiroplasma kunkelii distribution and infection mechanisms in the intestines and malpighian tubules of dalbulus maidis were investigated by transmission electron microscopy. spiroplasmas were found between microvilli and in endocytic vesicles of the midgut epithelium. at the basal part, cytoplasmic vesicles contained multiple spiroplasmas with tube-like extensions and spiroplasmas accumulated between the laminae rara and densa of the basal lamina. tip structures of flask-shaped spiroplasmas pier ... | 2003 | 12676553 |
| exitianus obscurinervis (hemiptera: cicadellidae), a new experimental vector of spiroplasma kunkelii. | "corn stunt" caused by the mollicute spiroplasma kunkelii (whitcomb) is potentially one of the most severe diseases affecting the corn (zea mays l.) crop in the americas, and the leafhopper dalbulus maidis (delong & wolcott) is considered its most important vector. however, other insects seen quite frequently in corn crops might well be its vectors in argentina to identify any leafhoppers species other than d. maidis that can transmit s. kunkelii, transmission assays were conducted, using indivi ... | 2011 | 22299338 |
| habitat of the corn leafhopper (hemiptera: cicadellidae) during the dry (winter) season in mexico. | although the corn leafhopper dalbulus maidis (delong and wolcott) is the most important vector of maize pathogens in latin america, little is known about how and where it overwinters (passes the dry season), particularly in mexico. the objectives of this study were (1) to monitor the abundance of d. maidis adults throughout the dry season in maize and maize-free habitats and (2) to determine where and how d. maidis adults, exposed or nonexposed to the maize pathogen spiroplasma kunkelii whitcomb ... | 2007 | 18284730 |
| presence of dalbulus maidis (hemiptera: cicadellidae) and of spiroplasma kunkelii in the temperate region of argentina. | "corn stunt" is one of the main corn (zea mays l.) diseases in the americas and dalbulus maidis (delong & wolcott) is the key vector of the pathogen spiroplasma kunkelii whitcomb. in argentina, the corn-producing area is in the temperate region, where vector and pathogen prevalence levels are unknown. in this study, the prevalence and distribution of d. maidis and s. kunkelii in the temperate region of argentina and d. maidis overwintering ability in this region were determined. surveys were con ... | 2013 | 24020268 |