News: New Agricultural Chemicals Laboratory for American Cyanamid.

Laboratory and field-cage studies were conducted in Texas in 1965 to evaluate treatments of the systemic insecticides, Azodrin (3-hydroxy-N-methyl-cis-crotonamide dimethyl phosphate), Bidrin (3-hydroxy-N, N dimethyl-cis-crotonamide dimethyl phosphate), American Cyanamid CL-47031 (cyclic ethylene (diethoxy-phosphinyl) dithioimidocarbonate) and Temik (2-methyl-2-(methylthio) propion-aldehyde O-(methylcarbamoyl) oxime), applied incorporated in lanolin to the stems of cotton plants against Heliothis zea (Boddie) and H. virescens (F.). Reductions in numbers of developing larvae of H. zea were substantial on individual plants the stems of which had been treated with Azodrin or CL-47031 and which were artificially infested with eggs. When first-instar larvae of H. zea or H. virescens were caged on plants 3, 7 or 14 days after stem treatment with 2.5, 5.0 or 100 mg. Azodrin, Bidrin or CL-47031 per plant, net mortalities ranged from 21 to 80 per cent after three days. The mortality of adults of H. zea provided with sucrose solutions containing 1 p.p.m. of the systemic insecticides indicated that Azodrin and Bidrin were about equally toxic and much more so than CL-47031 and Temik, and that of adults caged on individual plants in flower that had been treated with Azodrin or CL-47031 suggested that the moths may be killed by the systemic action of these insecticides translocated to the nectar. When adults of H. virescens were released on plants each treated with Azodrin at 25 or 30 mg. in large field cages, reductions in the numbers of eggs deposited, attributed to the effect on the moths of the insecticide in the nectar, and in the numbers of developing larvae, were substantial. Azodrin was the most consistently effective of the four insecticides evaluated.

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The Information Retrieval Problem as Applied to Agricultural Chemicals.

Journal of Chemical Documentation ◽

10.1021/c160014a011 ◽

1964 ◽

Vol 4 (3) ◽

pp. 166-166

Author(s):

R. J. Magee

Keyword(s):

Information Retrieval ◽

Agricultural Chemicals ◽

Retrieval Problem

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Agricultural Chemicals: Open Field

Chemical & Engineering News ◽

10.1021/cen-v035n042.p096 ◽

1957 ◽

Vol 35 (42) ◽

pp. 96

Keyword(s):

Open Field ◽

Agricultural Chemicals

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Anthropology and Environmental Problems in the U.S.: The Case of Groundwater Contamination

Practicing Anthropology ◽

10.17730/praa.10.3-4.v387p7463005862q ◽

1988 ◽

Vol 10 (3-4) ◽

pp. 5-20 ◽

Cited By ~ 3

Author(s):

Janet Fitchen

Keyword(s):

Drinking Water ◽

Chemical Compounds ◽

Underground Storage ◽

Chemical Contamination ◽

Storage Tanks ◽

Agricultural Chemicals ◽

Underground Storage Tanks ◽

Industrial Operations ◽

Improper Use ◽

The U.S

Chemical contamination of groundwater has become increasingly prevalent in the U.S. Once thought to be safe from pollution, the underground aquifers that supply drinking water to about half of the U.S. population are now known to be vulnerable to contamination from leaking landfills, waste lagoons, underground storage tanks, improper use of agricultural chemicals, and various industrial operations. Manufactured chemical compounds, including industrial degreasers and solvents, as well as gasoline, pesticides and fertilizers (in all, over 700 synthetic organic chemicals) have seeped down through the soil to the aquifers and been detected in ground water. Nearly every state has identified cases of contamination serious enough to require closing of some public or private supply wells.

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