Calcium carbonate for plant protection

Patent metadata

Field	Value
Publication number	US-10398146-B2
Application number	US-201515535160-A
Country	US
Kind code	B2
Filing date	Dec 15, 2015
Priority date	Dec 16, 2014
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

The present invention relates to the use of calcium carbonate as plant protection product for topical, pre-harvest application, wherein the plant protection product controls a pest during plant growth.

First claim

The invention claimed is:

1. A method of protecting a plant by controlling a pest during plant growth, wherein the method comprises the step of topically applying calcium carbonate in a form of a powder and/or an aqueous suspension having a solids content from 1 to 85 wt.-%, based on the total weight of the aqueous suspension, onto at least a part of a plant before harvesting, wherein the pest is Botrytis and/or Drosophila suzukii , and wherein the plant is selected from the group consisting of rosaceae, theobroma cacao, a grape vine, a stone fruit plant, a pome fruit plant, a berry plant, a citrus fruit plant, a brassicaceae plant, a cucurbit plant, a liliaceous plant, a banana plant, a papaya plant, a mango plant, and a passion fruit plant.

2. The method of claim 1 , wherein the pest is Botrytis.

3. The method of claim 1 , wherein the pest is Botrytis cinerea.

4. The method of claim 1 , wherein the pest is Drosophila suzukii.

5. The method of claim 1 , wherein the calcium carbonate is a natural ground calcium carbonate, a precipitated calcium carbonate, a functionalized calcium carbonate, a calcium carbonate containing mineral, or any mixture thereof.

6. The method of claim 1 , wherein the calcium carbonate is a natural ground calcium carbonate selected from the group consisting of marble, chalk, dolomite, limestone, and any mixture thereof.

7. The method of claim 1 , wherein the calcium carbonate is limestone.

8. The method of claim 1 , wherein the calcium carbonate is in a form of particles having a weight median particle size d 50 from 0.1 to 200 μm.

9. The method of claim 1 , wherein the calcium carbonate is in a form of particles having a weight median particle size d 50 from 0.6 to 100 μm.

10. The method of claim 1 , wherein the calcium carbonate is in a form of particles having a weight median particle size d 50 from 1 to 50 μm.

11. The method of claim 1 , wherein the calcium carbonate is applied in a form of an aqueous suspension having a solids content from 5 to 50 wt.-%, based on the total weight of the aqueous suspension.

12. The method of claim 1 , wherein the calcium carbonate is applied in a form of an aqueous suspension having a solids content from 10 to 25 wt.-%, based on the total weight of the aqueous suspension.

13. The method of claim 1 , wherein the calcium carbonate is in a form of an aqueous suspension, and is applied onto at least a part of the plant by spraying.

14. The method of claim 1 , wherein the calcium carbonate is in form of a powder and is applied onto at least a part of the plant by dusting.

15. The method of claim 1 , wherein the calcium carbonate is applied in an amount from 500 mg/m 2 to 50 g/m 2 of planted field area.

16. The method of claim 1 , wherein the calcium carbonate is applied in an amount from 1 g/m 2 to 25 g/m 2 of planted field area.

17. The method of claim 1 , wherein the calcium carbonate is applied in an amount from 8 g/m 2 to 16 g/m 2 of planted field area.

18. The method of claim 1 , wherein the calcium carbonate is applied as a composition comprising calcium carbonate and one or more of alkaline salts and/or earth alkaline salts.

19. The method of claim 1 , wherein the calcium carbonate is applied as a composition comprising calcium carbonate and one or more of sodium carbonate, sodium bicarbonate, potassium carbonate, magnesium carbonate, calcium chloride, calcium sulphate, calcium nitrate, calcium oxide, and calcium hydroxide.

20. The method of claim 1 , wherein the calcium carbonate is used in combination with an additional plant protection product.

21. The method of claim 1 , wherein the calcium carbonate is used in combination with an additional plant protection product that controls a pest during plant growth and plant storage.

22. The method of claim 1 , wherein the calcium carbonate is used in combination with a fungicide and/or an insecticide.

23. The method of claim 20 , wherein the plant protection product is for one or more of grapes, stone fruits, pome fruits, berries, citrus fruits, bananas, papayas, mangos, and passion fruits.

24. The method of claim 20 , wherein the plant protection product is for grapes.

25. The method of claim 1 , wherein the calcium carbonate is applied at least one time, or at least two times, before harvesting.

26. The method of claim 1 , wherein the calcium carbonate is additionally applied at least one time, or at least two times, after harvesting.

27. A method of protecting a plant by controlling a pest during plant growth, wherein the method comprises the step of topically applying calcium carbonate in a form of a powder and/or an aqueous suspension having a solids content from 1 to 85 wt.-%, based on the total weight of the aqueous suspension, onto at least a part of a plant before harvesting, wherein the pest is Drosophila suzukii.

28. A method of protecting a plant by controlling a pest during plant growth, wherein the method comprises the step of topically applying calcium carbonate in a form of a powder and/or an aqueous suspension having a solids content from 1 to 85 wt.-%, based on the total weight of the aqueous suspension, onto at least a part of a plant before harvesting, wherein the pest is Botrytis and/or Drosophila suzukii ., and wherein the plant is a grape vine.

Assignees

• Omya Int Ag

Inventors

• Stürm Christoph
• Hansen Wulff

Classifications

• A01N53/00

  Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof · CPC title

• A01N47/16

  the nitrogen atom being part of a heterocyclic ring · CPC title

• A01N43/54

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

• A01N43/40

  six-membered rings · CPC title

• A01N43/22

  rings with more than six members · CPC title