This invention relates generally to crop protection compositions and methods for making and using the compositions. More specifically, the invention relates to crop protection compositions utilizing talc and one or more additives providing for improved aqueous suspension of the talc and methods for
This invention relates generally to crop protection compositions and methods for making and using the compositions. More specifically, the invention relates to crop protection compositions utilizing talc and one or more additives providing for improved aqueous suspension of the talc and methods for making such compositions. The present invention also discloses horticultural substrates coated with a crop protective composition utilizing talc and one or more additives providing for improved aqueous suspension of the talc.
대표청구항▼
What is claimed is: 1. A composition, for application to crops, comprising: talc; citric acid; magnesium sulfate heptahydrate; and soda ash, wherein the composition is in pellet form. 2. The composition of claim 1, wherein the talc comprises between about 50 dry wt. % and about 99.9 dry wt. %.
What is claimed is: 1. A composition, for application to crops, comprising: talc; citric acid; magnesium sulfate heptahydrate; and soda ash, wherein the composition is in pellet form. 2. The composition of claim 1, wherein the talc comprises between about 50 dry wt. % and about 99.9 dry wt. %. 3. The composition of claim 1, wherein the talc comprises about 97 dry wt. %. 4. The composition of claim 1 wherein the composition comprises between about 500 ppm to about 2000 ppm citric acid. 5. The composition of claim 1, wherein the composition comprises between about 1000 ppm to about 1250 ppm citric acid. 6. The composition of claim 1, wherein the magnesium sulfate heptahydrate is added in the amount of between about 1000 ppm to about 4000 ppm. 7. The composition of claim 1, wherein the magnesium sulfate heptahydrate is added in the amount of between about 2000 ppm to about 3000 ppm. 8. The composition of claim 1, wherein the magnesium sulfate heptahydrate is added in the amount of about 2500 ppm. 9. The composition of claim 1, wherein the citric acid and the magnesium sulfate heptahydrate are present in a ratio of between about 1:0.5 to about 1:10 citric acid:magnesium sulfate heptahydrate. 10. The composition of claim 1, further comprising an oil. 11. The composition, as claimed in claim 1 wherein the talc is present in an amount between about 75 dry wt. % to about 99 dry wt. %, the citric acid is present in an amount between about 500 ppm and about 2000 ppm, the magnesium sulfate heptahydrate is present in an amount between about 1000 ppm and about 4000 ppm and the soda ash is present in an amount between about 1 dry wt. % and about 4 dry wt. %. 12. The composition, as claimed in claim 1, wherein the talc is present in an amount of about 97.125 dry wt. %, the citric acid is present in an amount of about 0.125 dry wt. %, the magnesium sulfate heptahydrate is present in an amount of about 0.25 dry wt. %, and the soda ash is present in an amount of about 2.5 dry wt. %. 13. A method for crop protection, comprising applying to at least a portion of a surface of a crop an effective amount of a slurry composition, comprising the composition of claim 1 and water wherein the slurry composition has a pH of between about 9.0 and about 11.6. 14. The method of claim 13 wherein the step of applying is performed by a process selected from the group consisting of spraying, painting, and dipping. 15. The method of claim 13 wherein the crop is selected from the group consisting of fruits, vegetables, grains, legumes, trees, shrubs, flowers, grasses, roots, landscape plants, ornamental plants, and crop plants. 16. A method for protecting crops from freezing, comprising applying to at least a portion of a surface of a crop an effective amount of a slurry composition, comprising the composition of claim 1 and water wherein the slurry composition has a pH of between about 9.0 and about 11.6. 17. The method of claim 16, wherein the method is conducted in combination with another freeze protection technique. 18. The method of 17, wherein the other freeze protection technique is selected from covering plants and burning smudge pots. 19. A method for protecting crops from pest infestation, comprising applying to at least a portion of a surface of a crop an effective amount of a slurry composition, comprising the composition of claim 1 and water wherein the slurry composition has a pH of between about 9.0 and about 11.6.
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