System and method for production of predatory mites

• US 8,327,797 B1
• Filed: 04/29/2009
• Issued: 12/11/2012
• Est. Priority Date: 04/29/2009
• Status: Active Grant

• Current Assignee: United States Department Of Agriculture
• Original Assignee: United States Department Of Agriculture
• Inventors: Morales-Ramos, Juan, Rojas, Maria, Cahn, Daniel
• Primary Examiner(s): Hayes, Kristen C
• Application Number:
  US12/432,313
• Time in Patent Office: 1,322 Days
• Field of Search: 119/6.5, 119/416, 119/270, 449/2, 449/3, 449/9, 449/10, 449/48
• US Class Current: 119/6.5
• CPC Class Codes: A01K 67/033 Rearing or breeding invertebrates; New breeds of invertebrates

Abstract

Predatory mites contained in an enclosed housing are provided with a continuous food source (i.e. spidermites) so that the healthy adult predatory mites migrate upwards to a collection container at the apex of the housing where a user harvests the predatory mites. The predatory mites are provided with spidermite-infested vegetation disposed in planar trays. The trays are chronologically arranged in a vertical stack within the housing so that as new trays loaded with spidermites are added to the top of the stack, old trays depleted of spidermites are removed from the bottom of the stack. The predatory mites intuitively display negative geotropism and positive phototropism so that the mites naturally move upwards and toward the light. Consequently the predatory mites migrate to the upper trays as new trays are added and eventually reach the collection container at the apex of the housing.

Claims

1. A system for producing arthropods comprising:

an enclosed housing, the housing comprising an upper portion and a lower portion, and an upper access means and a lower access means;

the housing being structured so that a plurality of arthropods are deposited in the lower portion;

a food source for the arthropods, the food source being deposited in the lower portion;

a vertical column of trays within the housing, the food source being disposed on the trays;

legs of upper filled trays resting on legs of lower filled trays;

a tray transfer assembly; and

,

a collection container, the collection container being attached to the upper portion;

whereby the housing is structured so that the food source is deposited onto a tray and into the housing through the upper access means, and remains of the food source is removed through the lower access means.

2. The system of claim 1 wherein the arthropods display negative geotropism.

3. The system of claim 1 wherein the arthropods display positive phototropism.

4. The system of claim 1 wherein the arthropods comprise predatory mites.

5. The system of claim 4 wherein the predatory mites comprise Phytoseiulus persimili.

6. The system of claim 1 wherein the food source comprises prey arthropods.

7. The system of claim 6 wherein the prey arthropods comprise spidermites.

8. The system of claim 7 wherein the spidermites comprise Tetranychus urticae.

9. The system of claim 1 wherein the tray transfer assembly comprises a tray lowering mechanism and a support pin control apparatus disposed on each side of the cage so that the support pin control apparatus on a first side of the cage is a mirror image of the support pin control apparatus on a second side of the cage.

10. The system of claim 1 wherein the upper portion comprises a funneling mechanism for funneling the arthropods to the collection container.

11. The system of claim 1 wherein the collection container is positioned at an apex of the upper portion.

12. A method of producing arthropods, the method comprising the steps of:

(a) providing an enclosed housing having an upper access means and a lower access means;

(b) positioning a collection container adjacent an upper portion of the housing;

(c) introducing a plurality of arthropods into a lower portion of the housing;

(d) supplying the arthropods with a food source through the upper access means and removing remains of the food source through the lower access means;

(e) harvesting offspring of the arthropods from the collection container.

13. The method of claim 12 wherein the arthropods display one of negative geotropism or positive phototropism.

14. The method of claim 12 wherein the arthropods comprise predatory mites.

15. The method of claim 14 wherein the food source comprises spidermites.

16. The method of claim 12 wherein, in step (e), the collection container is positioned at an apex of the upper portion.

17. A system for producing arthropods comprising:

an enclosed housing, the housing having an upper access means and a lower access means, and a vertical column of trays extending between the upper access means and the lower access means, legs of upper filled trays resting on legs of lower filled trays, the system

further comprising a tray transfer assembly;

the housing being structured so that a plurality of arthropods and a food source are deposited in the upper access means, and remains of the food source is removed through the lower access means;

a collection container, the collection container being attached to an apex of the housing so that the collection container is positioned above the housing.