Abstract
Abstract A description is provided for Erysiphe convolvuli . Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Powdery mildew of members of the Convolvulaceae only. Mycelium, conidiophores, conidia and ascomata form first white, then dirty-grey layers on damaged leaves. Erysiphe convolvuli can be used as an agent of biocontrol against any Convolvulus species which are malicious weeds. HOSTS: Calystegia hederacea, C. sepium, C. silvatica, C. soldanella, Convolvulus althaeoides, C. ammanii, C. arvensis, C. askabadensis (incl. C. pseudocantabrica), C. divaricatus, C. fruticosus, C. galaticus, C. hamadae, C. hirsutus, C. lineatus, C. pilosellaefolius, C. sagittaefolius , C. scammonia, C. siculus, C. subhirsutus, C. tricolor, Ipomoea batatas (?), I . cymosa (?). [Type host - Convolvulus arvensis ] GEOGRAPHICAL DISTRIBUTION: Africa: Canary Islands, Egypt, Libya, Morocco. Asia (temperate areas only): Afghanistan, Armenia, Azerbaijan, China, Cyprus, Republic of Georgia, India, Iran, Iraq, Israel, Jordan, Kazakhstan, Kirghizistan, Korea, Lebanon, Mongolia, Pakistan, Russia (north Caucasus, south and southwest Siberia), Saudi Arabia, Turkey, Turkmenistan, Uzbekistan. Europe (almost all): Austria, Bulgaria, Belarus, Czech Republic, Estonia, Finland, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Moldova, Poland, Portugal, Rumania, Russia (European part), Slovakia, Spain, Sweden, Switzerland, Turkey (European part), UK, Ukraine, former Yugoslavia. North America (introduced). South America: Argentina, Brazil (introduced). TRANSMISSION: By wind-dispersed conidia. The rôle of ascospores in disease transmission is unknown, although it has been supposed that they can cause the initial stage of the disease.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.