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How to Manage PestsInteractive Tools and Models:
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Powdery mildew risk for stations in counties: | Fresno | Madera | San Joaquin | |
RAIs are based on actual weather data for stations that take appropriate readings.
| County | Active weather stations
(Click on station for year-to-date graph/daily data) |
RAI* for 07/02/2009 |
Disease pressure | Pathogen status |
|---|---|---|---|---|
| Fresno (map) |
Based on bud break, March 17, in Thompson Seedless, you may need to adjust for other cultivars that emerge earlier than the indicated date. | CARUTHERS-01.P, CAR | 20 | low | is present |
| Del_Rey/Fowler-01.P, DELF | 0 | low | is present | |
| EASTON-01.P, EAS | 10 | low | is present | |
| KERMAN-01.P, KER | 0 | low | is present | |
| KINGSBURG-01.P, KNG | 0 | low | is present | |
| Kearney_Ag_Ctr-01.P, KAC | 0 | low | is present | |
| Laton_North-01.P, LATN | 20 (S1) | low | is present | |
| SAND_RANCH-01.P, SR1 | 0 | low | is present | |
| Madera (map) |
Based on bud break, March 17, in Thompson Seedless, you may need to adjust for other cultivars that emerge earlier than the indicated date. | FIREBAUGH/ALISO-01.P, FRBA | 0 | low | is present |
| Madera_North-01.P, MADN | 0 | low | is present | |
| Ripperdan-02.P, RIP | 0 | low | is present | |
| San Joaquin (map) | Based on bud break, March 20, in Chardonnay, you may need to adjust for other cultivars that emerge earlier than the indicated date. | FARMINGTON-01.P, FGN | 0 | low | is present |
| LINDEN-01.P, LIN | 0 (E) | low | is present | |
| LIVE_OAK-01.P, LIV | 0 (E) | low | is present | |
| LOCKEFORD-01.P, LOC | 0 | low | is present | |
| LODI-01.P, LOD | 0 (E) | low | is present | |
| PETERS-01.P, PET | 30 (E) | intermediate | reproduces every 15 days | |
* Bud break based on farm advisor countywide vineyard surveys:
S1 = missing data substituted with values from CARUTHERS-01.P
E = index was calcuated using previously substituted data
Because estimated data are included in the index, use reported RAI with caution. Interpret RAI using field surveys and your knowledge of the particular vineyard, along with additional weather data if you have it.