Causes of Fluctuation in Numbers of Beet Leafhoppers (Eutettix Tenella Baker) in a Natural Breeding Area of the San Joaquin Valley in California

Author： SEVERIN HENRY H. P.  

Publisher： Entomological Society of America

ISSN： 1938-291X

Source： Journal of Economic Entomology, Vol.17, Iss.6, 1924-12, pp. : 639-645

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