# US 5,352,672 A · Acaricidal combinations of neem seed extract and bifenthrin

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- Number: US 5,352,672 A
- Document ID: US5352672A
- Status: Granted
- Kind: A
- Application number: 08/139,252
- Filed: 1993-10-20
- Granted: 1994-10-04
- Earliest claimed: 1993-10-20
- Assignees: FMC Corporation
- Inventors: Charles A. Staetz; H. Robinson Ertelt; Gert P. Volpp
- Web page: https://patentgrep.com/patent/US5352672A

## CPC

- A01N 53/00: Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof
- Y10S 424/08: Systemic pesticides
- 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
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

Combinations of bifenthrin with azadirachtin-containing neem seed extracts are synergistic in controlling acarids, especially pyrethroid-resistant mites, over a wide range of azadirachtin to bifenthrin ratios.

## Claims

### Claim 1

A method of controlling pyrethroid resistant mites which comprises applying to the site where control is desired an acaricidally effective amount of an azadirachtin-containing neem seed extract and bifenthrin, the ratio of azadirachtin to bifenthrin being in the range of 10 to 3 to 1 to 4000.

### Claim 2 (depends on 1)

A method of claim 1 in which the mites are Tetranychus species.

### Claim 3 (depends on 2)

The method of claim 2 in which the mites are twospotted spider mites.

### Claim 4

A method of controlling pyrethroid resistant mites which comprises applying to the site where control is desired a composition containing an acaricidally effective amount of an azadirachtin-containing neem seed extract and bifenthrin, the ratio of azadirachtin to bifenthrin being in the range of 10 to 3 to 1 to 1000.

### Claim 5 (depends on 4)

A method of claim 4 in which the mites are Tetranychus species.

### Claim 6 (depends on 5)

The method of claim 5 in which the mites are twospotted spider mites.