Studies on Natural Control of Pear Psylla in California

Author： NICKEL JOHN L.   SHIMIZU JOHN T.   WONG TIM T. Y.  

Publisher： Entomological Society of America

ISSN： 1938-291X

Source： Journal of Economic Entomology, Vol.58, Iss.5, 1965-10, pp. : 970-976

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