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The pea aphid on alfalfa : how to control it
The disposal by burial of fruit infested with larvae of the Mexican fruit fly
Distinguishing characteristics of some forage-grass diseases prevalent in the North Central states
Orchard insects of the Pacific Northwest and their control
Production and agricultural use of sodium nitrate
Some common mushrooms and how to know them
Silvicultural management of black spruce in Minnesota
Gas treatment for the control of blue mold disease of tobacco
Airplane dusting in the control of malaria mosquitoes