Farmers made up less than 5 percent of work force for the first time.
Plant Variety Protection Act passed.
Effects of salinity on plant growth
System developed to continuously process raw
cotton stock into yarn. (more)
Council on Environmental Quality established.
Environmental Protection Agency established.
Horse Protection Act passed.
Wheat Research and Promotion Act passed.
Egg Products Inspection Act passed.
One and one-half man-hours of labor required on 1 acre to
produce 30 bushels of wheat.
Eurasian pine adelgid found in Hawaii.
Montcalm kidney beans released.
Identified active ingredient in gypsy moth
pheromone; synthesized an attractant, disparlure, as effective as female's
natural attractant. (more)
Continuous chromatography apparatus
Produced active-synthetic boll weevil
attractant, named grandlure. (more)
Discovered mode of inheritance of cyclic
neutropenia in dogs.
Identified and synthesized new class of
plant hormones, brassinolides.
First micropropagation of thornless
Immunoglobulin IGA discovered in cows
Killed-virus vaccine for Newcastle disease
Developed process to make sourdough bread
outside of San Francisco area.
Tylosin lactate discovered as a treatment
for American foulbrood of bees.
NPV of corn earworm registered by FDA; first baculovirus to
be registered and mass- produced for commercial use; registered by EPA in 1975.
Developed first artificially produced crop
variety, Higgins buffelgrass, that reproduces by seed, but without
Controlled alfalfa weevil in the eastern
U.S. using biological control. (more)
Controlled tansy ragwort on rangelands in
the western U.S. using biological control.
Era released; first semidwarf hard red
spring wheat variety.
Kanza alfalfa released.
Developed gas chromatography-mass
spectrometry analytical techniques for flavor analysis of fruits and
Role of enzyme "rubisco" on
photosynthesis and photorespiration demonstrated. (more)
Animal and Plant Health Inspection Service established;
responsible for regulatory and control programs relating to disease and pests
of animals and plants that were previously carried out by ARS.
Discovered first fertility restorer for
sunflower; lines RHA265 and RHA 266; used as male parents to create first
hybrid sunflowers planted by farmers in the U.S.
Marek's disease vaccine developed.
First comprehensive study on the effects of
feeding aflatoxin to livestock and poultry published.
Both sex attractants of female southern
armyworm isolated, must be combined to work. (more)
First recombinant DNA molecule synthesized.
Improved chemical treatment using THPC and
other chemicals, allowing fire-retardant children's sleepware.(more)
Federal Water Pollution Control Act passed.
Clean Air Act passed.
Consumer Product Safety Act passed.
DDT use banned in the U.S. (more)
United States signed 1952 International Plant Protection
Clean Water Act passed.
Isolated sex pheromones for Mediterranean
fruit fly. (more)
Spiroplasmas discovered, an entirely new
class of disease-causing organisms.
Agate alfalfa released.
Endangered Species Act passed.
Flammable Fabrics Act mandated new standards for fire
First gene splicing performed.
Caprine arthritis and encephalitis of goats
Flame Seedless released; second most
important seedless grape produced in the U.S.
Designed fiberboard box used for exporting
Threat to ozone by chlorofluorocarbons proposed.
Safe Drinking Water Act passed.
United States ratified the Convention on International Trade
of Endangered Species (CITES).
Viva and Roza pink beans released; most
widely grown pink bean varieties for past 25 years.
Climax rabbiteye blueberry released; second
most widely planted rabbiteye cultivar.
Swingle citrus rootstock released; Swingle
and Carizzo form rootstock for most grafted citrus trees in the U.S. (more)
Single citrumelo rootstock released,
resistant to citrus nematodes and tolerant to citrus blight.(more)
Flavorcrest peach released.
First book wholly devoted to biological
control of plant pathogens published.
Monoclonal antibodies invented.
Federal Noxious Weed Act provided authority for a regulatory
system designed to prevent the introduction of noxious weeds into the U.S. from
Developed pollen substituted as a
nutritional additive for bee colonies, Beltsville Bee Diet.
Demonstrated that a fraction of the virus
that causes foot-and-mouth disease is not infectious, but produces immunity in
Cando released; first semidwarf durum
SuperSlurper patented, a combination of
starch and a synthetic chemical that absorbs hundreds of times its own weight
in water. (more)
Beef Research and Information Act passed.
Federal Land Policy and Management Act repealed Homestead
Act and many other land laws.
Propagated bovine leukemia virus in cell
Daws soft white winter wheat released;
outstanding cold hardiness.
Citrus black fly eradicated using lab-reared
parasites as biocontrol agents. (more)
Designed, built, and operated a prototype
system to continuously process raw cotton stock into yarn.
Crystalline sugar produced from sweet
Atlantic potato released; number one
Controlled alligatorweed in the southeastern
U.S. using biological control.
Developed rapid, nondestructive technique
for determining quality of forages used as feed for livestock, using
near-infrared reflectance spectroscopy.
Methods developed to determine exact sequence of DNA.
Demonstrated the stability of the
transmissible mink encephalopathy agent.
Developed practice of spraying calcium
chloride or calcium nitrate on unsprayed fruit to reduce blemishes.
Discovered direct relationship between
Neotyphodium coenophialum fungus in fescue and disease in
United States declared free of hog cholera. (more)
Cryotherapy proved successful in treating
malignant cancer in animals.
Developed technique to accurately measure
vitamin D2 in plants, vitamin D3 in animals and their 11 metabolites.
Smallpox eliminated, the only microbial disease ever completely
Sunburst tangerine released.