Concentrate spraying in deciduous orchards Canada. Department of Agriculture. Entomology Research Institute creator Marshall, James. contributor text book Ottawa [Queen's Printer] 1958 1958
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ENG Apples Diseases and pests Spraying and dusting in agriculture SB953 C3 Canada Dept. of Agriculture Publication, 1020 Publication 1020 https://www.biodiversitylibrary.org/bibliography/58907 10.5962/bhl.title.58907 CaOTU