Browsing ETDs: Virginia Tech Electronic Theses and Dissertations by Author "Kaakeh, Walid"
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The effect of spirea aphid (Homoptera: aphididae) feeding and nitrogen fertilization on the growth of young apple trees, with comparisons to apple aphid
Kaakeh, Walid (Virginia Tech, 1989-06-03)The overall goal of this research was to determine the effects of spirea aphid, Aphis spiraecola Patch, feeding and nitrogen fertilization on net photosynthesis (Pn), leaf chlorophyll content and greenneess, growth, dry ...