Word: pollens
(lookup in dictionary)
(lookup stats)
Dates: during 1940-1949
Sort By: most recent first
(reverse)
...promiscuous sexual life of the giant ragweed (Ambrosia trifide)and other species again last week brought tears to the eyes of several million U.S. hay fever sufferers. In the next few weeks a good million tons of ragweed pollen will drift imperceptibly over the U.S. seeking mates...
Chicago could have told New York that it is wasting its time. In 1933 Chicago put 25,000 men to work cleaning up weeds (cost: $165,000). Result: no lessening in pollen concentrations, sneezes & sniffles. Reason: ragweed that grows within city limits is only an infinitesimally small source of hay fever infection. The main source is pollen carried by the wind over some 2,000,000 square miles where ragweed flourishes east of the Rockies...
Though the gods drank nectar, pollen would have been far better for them: pollen (which is a male reproductive spore) is a startlingly rich source of proteins and fats, contains carbohydrates, vitamins and minerals. This discovery was announced last week by James I. Hambleton, chief U.S. apiarist at Beltsville, Md. Apiarist Hambleton and co-workers have invented a trap to collect pollen by the ton: a screen doorstep in front of a beehive, which brushes pollen off the hairy legs of bees and drops it into a box below. As much as 70 lb. of pollen can be gathered each...
Texas researchers last year found that royal jelly, the substance secreted and fed to the queen bees by the workers, is two and a half to six times richer in pantothenic acid-a vitamin of the B complex-than yeast or liver. Hambleton believes that pollen will prove to have a similar content, may soon become a major source of vitamin extracts...
...pollen trap also enables apiarists to increase their swarms. In winter bees subsist on stored-up honey and pollen. A beekeeper who carefully gleans bee-dropped pollen, then feeds it back to his swarms in more generous quantities than the bees themselves would store it, will find his insects from 25 to 100% more numerous at winter...