Fluid bait formulations and their use with active termite infestation

Patent metadata

Field	Value
Publication number	US-10375957-B2
Application number	US-201414766820-A
Country	US
Kind code	B2
Filing date	Mar 4, 2014
Priority date	Mar 15, 2013
Publication date	Aug 13, 2019
Grant date	Aug 13, 2019

Abstract

The subject invention provides fluid formulations for use in controlling a population of a pest once it has been detected. Specifically, the subject invention pertains to a fluid bait formulation comprising a feed medium impregnated with at least one active ingredient and a liquid carrier. The invention is based on the concept of providing a unique fluid bait formulation that can be injected into a termite infestation site, where an effective amount of AI(s) is presented to the termite population, even following dehydration of the formulation, to control the termite population.

First claim

I claim:

1. A fluid form bait formulation having a viscosity between 1 and 100 Pa·s, the formulation comprising a particulate feed medium impregnated with at least one active ingredient (AI) and suspended in a liquid carrier selected from methylcell solution, agar solution and gel solution;
wherein the feed medium is impregnated with the AI such that following dehydration of the formulation, a slow-acting and non-repellent concentration of the AI is present in the feed medium; and
wherein the AI is one or more insecticides selected from the group consisting of insect growth regulators and metabolic inhibitors.

2. The formulation of claim 1 , where the feed medium comprises any one or more of the following materials selected from the group consisting of: α-cellulose, wood flour, and milled paper, wherein the feed medium is in fine powder form.

3. The formulation of claim 1 , wherein the feed medium further comprises an attractant.

4. The formulation of claim 3 , wherein the feed medium comprises fine powder form of wood materials decayed with brown-rot fungi or white-rot fungi.

5. The formulation of claim 3 , wherein the attractant is a synthetic termite phagostimulant.

6. The formulation of claim 1 , wherein the AI is selected from the group consisting of: hexaflumruon, noviflumuron, diflubenzuron, lufenuron, chlorfluazuron, bistrifluron, and triflumruon, and the ecdysone agonist is a ecdysteroid.

7. The formulation of claim 1 , wherein the metabolic inhibitor is selected from the group consisting of: borates, sulfluramid, hydramethylnon, ivermectin, fipronil, imidacloprid, and thiamethoxam.

8. The formulation of claim 1 , wherein the feed medium is α-cellulose, the liquid carrier is methylcell solution and the active ingredient is hexaflumuron.

9. The formulation of claim 1 , wherein the viscosity of the formulation is between about 1-50 Pas.

10. The formulation of claim 1 , wherein the viscosity of the formulation is between about 50-100 Pas.

11. The formulation of claim 1 , wherein the impregnated feed medium is suspended in the liquid carrier to yield a 15-20% dry weight feed medium in 0.5% methylcell solution.

12. The formulation of claim 1 , wherein the impregnated feed medium is suspended in the liquid carrier to yield a 10% dry weight feed medium in 1% methylcell solution.

13. The formulation of claim 1 , wherein the insect growth regulator is a chitin synthesis inhibitor, juvenoid, or ecdyson agonist.

14. A method for controlling a termite infestation wherein said method comprises: providing a fluid form bait formulation according to claim 1 ; and injecting the fluid form bait formulation into a void in a structures created by termites.

15. The method of claim 14 , wherein the fluid form bait formulation has a viscosity between about 1-50 Pa·s.

16. A kit for preparing a fluid bait formulation having a viscosity of between 1 and 100 Pa·s, wherein the kit comprises: a particulate feed medium impregnated with at least one active ingredient (AI), a liquid carrier to be mixed with the AI(s)-impregnated feed medium wherein the liquid carrier is selected from methylcell solution, agar solution and gel solution;
wherein the feed medium is impregnated with the AI such that following dehydration of the formulation, a slow-acting and non-repellent concentration of the AI is present in the feed medium; and
wherein the AI is one or more insecticides selected from the group consisting of insect growth regulators and metabolic inhibitors.

17. The kit of claim 16 , further comprising an apparatus for injecting the liquid bait formulation into a termite infestation site.

18. The kit of claim 17 , wherein the apparatus is a syringe.

19. The kit of claim 11 , wherein the feed medium comprises 90% α-cellulose and 10% wood flour decayed with G. trabeum and is impregnated with hexaflumuron at 0.5% (AI wt/wt), wherein the liquid carrier is 1% methylcel solution.

20. The kit of claim 16 , wherein the fluid form bait formulation has a viscosity between about 1-50 Pa·s.

Assignees

• Univ Florida

Inventors

• Su Nan-Yao

Classifications

• A01N25/006

  insecticidal · CPC title

• A01M1/24

  Arrangements connected with buildings, doors, windows, or the like · CPC title

• A01M1/20 Primary

  Poisoning, narcotising, or burning insects {(fumigation apparatus A01M13/00)} · CPC title

• A01N37/46 Primary

  N-acyl derivatives · CPC title

• A01N43/54

  1,3-Diazines; Hydrogenated 1,3-diazines · CPC title