The uses of sodium selenate, P-40, and parathion in the control of red spider on ageratum.

Bibliographic Details
Main Author: Lembach, John Vincent
Format: Others
Published: ScholarWorks@UMass Amherst 1948
Subjects:
Online Access:https://scholarworks.umass.edu/theses/2806
https://scholarworks.umass.edu/cgi/viewcontent.cgi?article=4024&context=theses

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