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TRIALS OF SUBSTITUTES FOR SULPHURIC ACID FOR POTATO HAULM KILLING : THE IDENTIFICATION OF APHIDS OF ECONOMIC IMPORTANCE
Conferences of Crop Husbandry Officers, Plant Pathologists, National Agricultural Advisory Service, E. C. LargeVolume:
1
Year:
1952
Language:
english
Pages:
8
DOI:
10.1111/j.1365-3059.1952.tb00011.x
File:
PDF, 5.64 MB
english, 1952