# US 9,872,487 B2 · Method for preparing an optimum density termite bait composition

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- Number: US 9,872,487 B2
- Document ID: US9872487B2
- Status: Granted
- Kind: B2
- Application number: 14/502,151
- Filed: 2014-09-30
- Published: 2016-03-31
- Granted: 2018-01-23
- Earliest claimed: 2002-01-29
- Assignees: BASF SE
- Applicants: BASF Corporation
- Inventors: Jeffrey A. Martin; Ronald O. Richardson
- Web page: https://patentgrep.com/patent/US9872487B2

## CPC

- A01M 1/026: {combined with devices for monitoring insect presence, e.g. termites (bait stations A01M1/2005; detecting other animals in a given area A01M31/002)}
- A01M 1/2011: {for crawling insects}
- A01N 25/006: {insecticidal}
- A01N 25/10: Macromolecular compounds
- A01N 25/34: Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
- A01N 47/34: containing the groups [IMAGE cpc-sch-A01N-0947.gif], e.g. biuret; Thio analogues thereof; Urea-aldehyde condensation products
- A01M 2200/011: Crawling insects
- A01M: CATCHING, TRAPPING OR SCARING OF ANIMALS (appliances for catching swarms or drone-catching A01K57/00; fishing A01K69/00 - {A01K99/00}; biocides, pest repellants or attractants A01N); APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- 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

A composition in compacted form for use for termite monitoring and control comprises a cellulose material which may be purified cellulose or micro-crystalline cellulose as a base bait, the composition being compacted to an optimum density of not less than approximately 1.033 g/cc. Also disclosed is a method for monitoring and controlling termite infestations which comprises the steps of a) preparing such a composition; b) placing the composition in a bait station; c) monitoring the station at periodic time intervals for termites; and d) upon observing termite infestation in the bait station, replacing the above composition with a bait composition containing a termite killing agent.

## Claims

### Claim 1

A method for preparing an extruded composition for use for termite monitoring and control, the method comprising extruding a composition comprising a cellulose material and an active ingredient for killing or controlling termites to a density of not less than 1.033 g/cc.

### Claim 2 (depends on 1)

A method as set forth in claim 1 wherein said cellulose material is purified cellulose.

### Claim 3 (depends on 1)

A method as set forth in claim 1 wherein said cellulose material is micro-crystalline cellulose.

### Claim 4 (depends on 1)

A method as set forth in claim 1 wherein said active ingredient for killing or controlling termites is selected from the group consisting of chitin synthesis inhibitors, juvenile hormone mimics, stomach toxicants, contact insecticides and mixtures thereof.

### Claim 5 (depends on 4)

A method as set forth in claim 4 wherein said synthesis inhibitor is selected from the group consisting of hexaflumuron, flufenoxuron, lufenurin, and dimilin.

### Claim 6 (depends on 1)

A method as set forth in claim 1 wherein said active ingredient for killing or controlling termites is present in the extruded composition in a concentration from 0.01% to 10% by weight.

### Claim 7 (depends on 1)

A method as set forth in claim 1 wherein said extruded composition additionally contains a termite attractant and/or pheromone.

### Claim 8 (depends on 1)

A method as set forth in claim 1 wherein said extruded composition has a density of 1.196 g/cc.

### Claim 9

A method for controlling termite infestations comprising the steps of:
(a) compacting a composition comprising a cellulose material and an active ingredient for killing or controlling termites by extrusion to a density of not less than 1.033 g/cc; and
(b) placing said extruded composition in a bait station.

### Claim 10 (depends on 9)

A method as set forth in claim 9 wherein said cellulose material is purified cellulose.

### Claim 11 (depends on 9)

A method as set forth in claim 9 wherein said cellulose material is micro-crystalline cellulose.

### Claim 12 (depends on 9)

A method as set forth in claim 9 wherein said active ingredient is selected from the group consisting of chitin synthesis inhibitors, juvenile hormone mimics, stomach toxicants, contact insecticides and mixtures thereof.

### Claim 13 (depends on 12)

A method as set forth in claim 12 wherein said synthesis inhibitor is selected from the group consisting of hexaflumuron, flufenoxuron, lufenurin, and dimilin.

### Claim 14 (depends on 9)

A method as set forth in claim 9 wherein said active ingredient for killing or controlling termites is present in the extruded composition in a concentration from 0.01% to 10% by weight.

### Claim 15 (depends on 9)

A method as set forth in claim 9 wherein said extruded composition additionally contains a termite attractant and/or pheromone.

### Claim 16 (depends on 9)

A method as set forth in claim 9 wherein said extruded composition has a density of 1.196 g/cc.