Abstract
By transmission tests C. obscurella was shown to transmit the wheat striate mosaic virus from wheat to wheat and the oat sterile-dwarf virus from oats to oats. In C. obscurella the incubation times of these viruses seem to be as long as in C. pellucida. In its life cycle and distribution, C. obscurella closely resembles C. pellucida. In Finland the former is earlier but on the whole scarcer than C. pellucida. The ability of C. obscurella to transmit viruses seems to be similar to that of C. pellucida Being scarcer, C. obscurella is obviously of less importance than C. pellucida as a vector of cereal viruses. Locally, it may, perhaps, be of some importance.
Highlights
In the course of tests on the food plants of C. obscurella, the latter author of this paper found that some plants showed symptoms closely resembling those caused by viruses
8 plants showed severe symptoms which were similar to those caused by the wheat striate mosaic transmitted by C. pellucida
The symptoms did not differ from those caused by wheat striate mosaic and oat sterile-dwarf transmitted by C. pellucida
Summary
Three species of the leafhopper genus Calligypona (Horn., Araeopidae ) are established to be vectors of plant viruses. C. pellucida (F.) transmits the wheat striate mosaic and oat sterile-dwarf viruses. This leafhopper transmits the wheat striate mosaic virus in many European countries, in England and Spain [18], in Czechoslovakia [13] and in Finland [3]. In the two latter countries C. pellucida acts as a vector of the oat sterile-dwarf virus, too [12, 4] This virus seems to be the main cause of the damage to oats occurring in western Finland [4]. The wheat striate mosaic virus occurring in U.S.A. is transmitted by a cicadellid leafhopper, Endria inimica (Say) [17]. Experiments were done to find out if this leafhopper, too, is a vector of the cereal viruses transmitted by C. pellucida
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
