Word: tx
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Dates: during 1970-1979
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...USDA scientists is a creature with the formidable name of Toxorhynchites rutilus rutilus. During its larval stage in stagnant water, the mosquito feeds on the larvae of more common, biting and disease-carrying cousins, like the Aedes aegypti, which also breeds in pools and water-filled containers. Although the Tx. rutilus is found from Florida to Canada and as far west as Texas, it is not very prolific by insect standards and does not exist naturally in numbers large enough to control the population of other mosquitoes. That deficiency presents no problem to USDA Entomologist Dana Focks, who has learned...
...what happens after Tx. rutilus does in large numbers of the prey mosquitoes? Does it turn, in its adult stage, to bigger meals?like man? Fortunately, the bug's proboscis cannot penetrate the skin of animal or human, and the adult depends for food only on flower nectar and plant detritus. Thus for mosquito control, as Focks puts it, "the Toxorhynchites is a neat package...
...second program examined is job-training. Forrester gives it the benefit of every doubt; he assumes it costs the city nothing, adds nothing to the tx rate, and proves one hundred per cent effective in turning the Underemployed into skilled workers. The program is assumed to reach 5 per cent of the underemployed each year. The positive results of this program, however--like the last--are almost entirely consumed by in-migration. Moreover, the increased number of those in the Labor class makes crowding in Worker Housing more severe, competition for jobs tighter, and the prospect of leaving the city...
...final, and most damaging program Forrester looks at is the Low-Cost Housing Program. Assumed to be funded by a larger governmental body, the computer model's housing program does not effect the tx rate for the city but does provide jobs for Labor and Underemployed through construction. The program is designed to build housing for five per cent of the Underemployed per year, but because of the counteractive effects of land shortages and labor shortages (labor rapidly leaves the city), it averages only 2.5 per cent per year. Even this rate of construction, though, proves very harmful...