| Reduced Risk Status: |
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| IPM Compatibility: |
Per Requester: Very Good Fit; The use of potassium phosphite is important to allow for resistance management by the rotation of fungicides preharvest and then allowing postharvest use. On citrus, oxathiapiprolin and mandipropamid can be used as a preharvest treatment and then potassium phosphite can be used postharvest and this allows multiple modes of action to prevent the selection of resistant isolates of Phytophthora spp:07/26;
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| Reasons for need: |
Phytophthora species. Primary: All species cause brown rot. To establish international tolerances in Codex to all trade. Primary: Preharvest and postharvest use of potassium phosphite in the United States:07/26;
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| Requesting State(s): |
CA:Adaskaveg, J* ;
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| PCR Use Pattern: |
One application at 96-100 fl. oz/A for pre-harvest and one application at 2000-4000 ppm for post-harvest; PHI: 1-day
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| EPA Default Residue Trials: |
3-3 10-2
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| IR-4 Residue Trial Plan: |
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| Residue Protocol Use Pattern: |
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| Efficacy/Crop Safety (E/CS) Data Required: |
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| E/CS Research Comments: |
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| Label Use Pattern Submitted To EPA: |
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| EPA PIF Status: |
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| EPA Status: |
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| EPA PRIA Date: |
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| MRID: |
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| Comments: |
Key Export Markets: Canada, Mexico, Korea, Japan, China, Taiwan; PR14099 was created for storage stability study; Also PR10687 generated residue data for 6040 PPM post-harvest application on Citrus. This PCR requires 2000-4000 PPM for post-harvest use. New PR#s have been established for 14130/Orange, 14131/Lemon, 14132/Grapefruit, and 14239/Mandarin:07/26/sb;
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| International Status: |
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| Archive Location: |
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| QA Archive: |
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