Influence of Plant Age on the Survival of Alfalfa Varieties1 Differing in Resistance to the Spotted Alfalfa Aphid

Author： HOWE W. L.   PESHO G. R.  

Publisher： Entomological Society of America

ISSN： 1938-291X

Source： Journal of Economic Entomology, Vol.53, Iss.1, 1960-02, pp. : 142-144

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