Click on "more" to view related
Hybrid corn allowed increases in production, more efficient
use of applied fertilizer, and large-scale, mechanized harvesting.
USDA scientists developed first hog cholera vaccines.
One farmer out of every four was a tenant farmer.
Of gainfully employed persons, 49 percent were engaged in
Evaporated milk developed.
Two varieties of corn crossed by detasselling one of them, hybridizing the corn
for the sole purpose of using the vigor of the first-generation hybrid to
increase production. (more)
Modern cream separator invented.
Tubercle bacillus isolated by German bacteriologist.
USDA scientist one of the first to
chemically analyze it.
Methods developed to detect food
adulteration; precursor to Pure Food and Drug Act.(more)
First Federal animal quarantine law enacted.
Bureau of Animal Industry established.
First fungicide invented from lime and copper sulphate, known as the Bordeaux
Injected killed, whole-cell vaccine of
hog cholera into pigeons to demonstrate immunity to subsequent administration
of a live microbial culture. (more)
Hatch Experiment Station Act provided Federal grants to states for agricultural
Office of Experiment Stations established.
Refrigerated boxcars made first long-haul shipments of
produce and meat.
Vedalia beetles imported from Australia to
control fluted scale on citrus, the first successful biological control program
of a crop pest. (more)
Department of Agriculture given cabinet status.
Controlled cottony cushion scale on citrus
in California using biological control. (more)