Browsing Publications, Washington State University Extension by Subject "Insect pests -- Control"
Now showing items 1-3 of 3
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Making oil sprays
(Pullman, Washington : State College of Washington. Extension Service., 1925-01) -
Spraying formulas for garden insects
(Pullman, Washington : State College of Washington. Extension Service., 1918-01) -
Spraying formulas for orchard insects
(Pullman, Washington : State College of Washington. Extension Service., 1918-03)