Springville Herald | 1948-05-20 | Page 8 | Migration of Leafhopper is Soon Underway

MIGRATION OF LEAFIIOPPERIS , SOON UNDERWAY Additional data have substantiated substanti-ated the information released April 7 that beet leafhopper populations popu-lations are low in all local breeding breed-ing areas of northern Utah bordering bor-dering Utah and Great Salt Lake, I with the exception of Promontory Point and Rozel, H. E. Dorst, United State Department of Agri- culture entomologist, and Dr. G. F. Knowlton, Utah State Extension Exten-sion entomologist, announced today. to-day. The populations at Promontory Point and Rozel were moderately higher than they have been during recent years. These numbers have been greatly reduced in recent weeks because of predators and-or and-or inclement weather. Weather conditions during the , next two weeks will influence the development of the beet leafhop-' leafhop-' per and its host plants and, therefore, there-fore, will affect the exact time and magnitude of the movement of the leaphoppers. According to present indications the leafhoppers from the local breeding areas will probably start moving to the cultivated areas in late May, they predicted. Even though a moderate move-tot move-tot is anticipated, the prevailing wind which usually is from the southwest at that time, will influence influ-ence the movement to the cultivated culti-vated areas of Box Elder, Weber, Davis, Salt Lake and Utah counties, coun-ties, the entomologists said. Largest, migration of leafhoppers leafhop-pers in recent years is now underway under-way from the southern breeding areas to the cultivated districts of central and northern Utah. This was first detected on April 28 and will doubtless continue for several weeks.