# US 5,707,637 A · Granulated soil insecticidal-nematicidal compositions with reduced mammalian dermal toxicity

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- Number: US 5,707,637 A
- Document ID: US5707637A
- Status: Granted
- Kind: A
- Application number: 08/479,501
- Filed: 1995-06-07
- Granted: 1998-01-13
- Earliest claimed: 1990-12-14
- Assignees: American Cyanamid Company
- Inventors: Jerry Peter Milionis; James Arthur Behm
- Web page: https://patentgrep.com/patent/US5707637A

## CPC

- A01N 25/32: Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions
- A01N 25/12: Powders or granules (A01N25/26 takes precedence)
- A01N 57/12: containing acyclic or cycloaliphatic radicals
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS

## Abstract

There are provided new granulated soil insecticidal-nematicidal compositions with concomitant reduced mammalian dermal toxicities, comprising an inert granular, biodegradable, sorptive carrier of renewable resource material and an insecticidally and nematicidally effective amount of O,O-diethyl S-(›(1,1-dimethylethyl)thio!methyl)phosphorodithioate or O,O-di-ethyl S-(ethylthiomethyl)phosphorodithioate.

## Claims

### Claim 1

A method for protecting crops from attack by insects and nematodes while inhibiting the growth of undesirable plant species in the presence of said crops which comprises applying to soil in the locus of said crops, at or about the time of planting, an insecticidally-nematicidally effective amount of a cellulosic, granular composition at least 90% of which is -8, +48 mesh granules having a bulk density of from 20 lbs/cft to 45 lbs/cft and a pH value between pH6 and pH8 and absorbed therein from 2% to 20% by weight of terbufos and thereafter applying to the locus of the said terbufos treated crops approximately 2 to 4 weeks after planting and after said crops have emerged, a herbicidally effective amount of an acetohydroxyacid synthase (AHAS) inhibiting herbicide,. said method reducing or eliminating crop injury due to interaction between terbufos and the AHAS inhibiting herbicide.

### Claim 2 (depends on 1)

The method according to claim 1 wherein at least 90% of the cellulosic, granular composition is -8, +20 mesh granules having a bulk density of from 35 lbs/cft to 45 lbs/cft and a pH value between pH6 and pH8 and absorbed therein from 5% to 15% by weight of terbufos.

### Claim 3 (depends on 1)

The method according to claim 1 wherein the terbufos granules are applied at the time of planting to the soil surface as a band beside the planted crop rows and the herbicide is applied to the locus of the crops after they have emerged and are at the 2 to 6 leaf stage.

### Claim 4 (depends on 1)

The method according to claim 1 wherein the AHAS inhibiting herbicide is a sulfonylurea herbicide.

### Claim 5 (depends on 4)

The method according to claim 4 wherein the sulfonylurea herbicide is primisulfuron.

### Claim 6 (depends on 4)

The method according to claim 4 wherein the sulfonylurea herbicide is nicosulfuron.

### Claim 7 (depends on 8)

The method according to claim 8 wherein said crops are corn.