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Liquid compositions containing a polyethylene glycol safener and an organophosphorus pesticide
| Details |
Inventors: Boatright, Alfonso;
Assignee: American Cyanamid Company (Stamford, CT)
Primary Examiner: Turner; V. D.
Assistant Examiner:
Attorney, Agent or Firm: Kline; Harry H.
There are provided novel compositions comprising polyethylene glycol solvents of average molecular weights of 200 to 600 and an organophosphorous pesticide, wherein said compositions are effective for the control of root-knot nematodes (Meloidogyne incognita) while characterized by markedly low mammalian dermal toxicity. |
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DETAILED DESCRIPTION I claim: 1.
A composition comprising in combination from 95 to 30%, by weight, of a polyethylene glycol solvent of an average molecular weight of 200 to 600 and from 5 to 70%, by weight, of an agent of the formula: ##STR3## where R is hydrogen or methyl and n is an integer from 1 to 2, distinguished by excellent nematocidal and insecticidal activity combined with markedly decreased mammalian dermal toxicity.
2.
The composition according to claim 1 wherein said polyethylene glycol is of an average molecular weight of 400.
3.
The composition according to claim 1 comprising 75%, by weight, to 85%, by weight, of a polyethylene glycol of an average molecular weight of 400 and from 25%, by weight, to 15%, by weight, of the pesticidal solute of claim 1.
4.
The composition according to claim 1 wherein said composition contains 2 pounds per gallon of said agent and said polyethylene glycol solvent is of an average molecular weight of 400.
5.
The composition according to claim 1 wherein the agent is: 2-diethoxyphosphinylimino-1,3-dithietane.
6.
The composition according to claim 1 wherein the agent is: 2-diethoxyphosphinylimino-4-methyl-1,3-dithiolane.
7.
The composition according to claim 1 wherein the agent is: 2-diethoxyphosphinylimino-1,3-dithiolane.
8.
A method for the control of nematodes which comprises applying to nematode infected soil an effective amount of the composition of claim 1 ranging from 1.
5 mg/l to 3.
0 mg/l of soil.
Description:
Agricultural pesticides employed for the control of pests damaging and destroying food and fodder crops are by their very nature more or less toxic to mammals.
Thus, they represent a distinct hazard to the individuals engaged in the application and use thereof.
Although such pesticides may enter the human body via ingestion and/or inhalation, the most commonly encountered mode of entry is by absorption through the skin.
Consequently, it is of prime interest to those who manufacture pesticidal agents or formulate them to find compositions of such pesticides which, while fully retaining their effectiveness for the control of said agricultural pests, will have a decreased mannalian dermal toxicity
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