Sampling Pear Foliage for Nymphs of the Pear Psylla, Using the Berlese-Tullgren Funnel

Author： Harris Marvin  

Publisher： Entomological Society of America

ISSN： 1938-291X

Source： Journal of Economic Entomology, Vol.64, Iss.5, 1971-10, pp. : 1317-1318

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