Pyrethrum and Derris as a Control for the Six-Spotted Leafhopper, a Vector of Lettuce Yellows

Author: PEPPER BAILEY B.   HAENSELER C. M.  

Publisher: Entomological Society of America

ISSN: 1938-291X

Source: Journal of Economic Entomology, Vol.32, Iss.2, 1939-04, pp. : 291-296

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