The uses of sodium selenate, P-40, and parathion in the control of red spider on ageratum.
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| Format: | Others |
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ScholarWorks@UMass Amherst
1948
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| Online Access: | https://scholarworks.umass.edu/theses/2806 https://scholarworks.umass.edu/cgi/viewcontent.cgi?article=4024&context=theses |