300 
Journal of Agricultural Research 
Vol. XXVIII, No. 4 
OREGON 
1. Echo. 
3. Pendleton. 
4. Union. 
2. La Grande. 
WASHINGTON 
1. Ellensburg. 
4. Pasco. 
6. Toppenish. 
2. Granger. 
5. Sunnyside. 
7. Wenatchee. 
3. North Yakima. 
IDAHO 
1. Blackfoot. 
6. Idaho Falls. 
10. Payette. 
2. Buhl. 
7. Jerome. 
11. Rupert. 
3. Burley. 
8. Nampa. 
12. Shelley. 
4. Gooding. 
9. Oakley. 
13. Twin Falls. 
5. Hansen. 
NEVADA 
1. Fallon. 
UTAH 
I. Austin. 
8. Lynndyl. 
15. Richfield. 
2. Box Elder County. 
9. Mills. 
16. St. George. 
3. Delta. 
10. Monroe. 
17. St. Joseph. 
4. Elsinore. 
11. Moroni. 
18. Salina. 
5. Fillmore. 
12. Nephi. 
* 19. Sigurd. 
6. Garland. 
13. Ogden. 
20. Spanish Fork. 
7. Lehi. 
14. Panguitch. 
21. Thompsons. 
ARIZONA 
1. Glendale. 
2. Prescott. 
. 
COLORADO 
1. Fort Collins. 
3. Grand Junction. 
4. Rocky Ford. 
2. Lamar. 
NEBRASKA 
1. Grand Island. 
TEXAS 
1. Amarillo. 
2. El Paso. 
NEW MEXICO 
1. Las Cruces. 
The localities listed include those recorded by Ball (i), (4) and Severin (11) 
and unpublished reports by W. J. Hartung, G. T. Scott, and the present writers. 
ECONOMIC IMPORTANCE OF CURLY-TOP 
'The studies on curly-top by the writers have been conducted in the main in 
California, and so the consideration of the economic importance here given is 
based principally on California conditions. The fact should be borne in mind, 
however, that the disease frequently causes serious losses in the beet-growing 
regions of other Western States. In the regions where beets have been grown 
in California the losses may in general be said to have varied (within limits) 
directly with the distance from the coast. In cooler coastal regions or so-called 
fog belts the damage is usually slight or relatively unimportant. As one goes 
inland into the progressively warmer and more arid districts the damage caused 
by the disease increases so that nearly every year the resulting losses are serious 
and in the so-called “bad years” the losses vary from very serious to total. The 
losses have been so serious in some of the interior districts that vast available 
areas otherwise suitable for beet growing have been completely abandoned after 
several years of unsuccessful efforts to grow beets on an extensive commercial 
scale. Curly-top was, of course, not the only difficulty encountered in these 
hot, dry districts, but, in the opinion of the writers, it was the limiting factor. 
