| Fungicide1 | Resistance risk (FRAC group number)2 |
Powdery mildew | Gray mold | Anthrac- nose | Common leaf spot | Rhizopus/Mucor rot | Phyto- phthora diseases | Angular leaf spot |
|---|---|---|---|---|---|---|---|---|
| Actigard | high (P 01) | NL | NL | NL | NL | NL | NL | 3 |
| Aliette3,9, Legion** | high (P 07/33) | NL | NL | NL | NL | 4 | NL | NL |
| Bumper**, Tilt, etc. | high (3) | NL (0) | 5R | NL (3) | NL (0) | NL | 4 | NL |
| Cabrio | high (11) | 1RR | 2R | 3R | NL (2) | NL | 0 | NL |
| Cannonball5 | high (12) | 5R | NL | 4 | 4 | NL | NL | NL |
| Captan | low (M 04) | 2 | NL (0) | NL (2) | NL (2) | NL | NL (0) | NL |
| Captevate** | medium (M 04/17) | 4R | NL | 4 | NL | NL | NL | NL |
| Cevya | high (3) | NL | 4R | NL | NL | NL | NL | NL |
| Copper, etc.10 | low (M 01) | 0 | 0 | 0 | 0 | 0 | 0 | 410 |
| Elevate | high (17) | 5RR | NL (0) | NL (0) | NL | NL | NL (0) | NL |
| Evito* | high (11) | 1RR | 3R | 2R | NL | NL | NL | NL |
| Flint Extra | high (11) | 1RR | 4R | 2R | NL | NL | NL | NL |
| Fontelis | high (7) | 5R | 4R | NL | NL | NL | NL | NL |
| Fungi-Phite, K-Phite, ProPhyt, etc. | high (P 07/33) | NL | 0 | 0 | NL | 4 | NL | NL (2) |
| Gatten* | high (U 13) | NL | 5 | NL | NL | NL | NL | NL |
| Inspire Super | medium (3/9) | 5R | 5 | 4 | 5 | NL | ND | NL |
| Intuity | high (11) | 1RR | 2R | NL | NL | NL | NL (0) | NL |
| Kenja | high (7) | 5 | 3 | ND | NL (2) | NL | ND | NL |
| Luna Privilege **(foliar)/ Velum One (soil)4 | high (7) | 5/NL | 5/3 | NL | ND | ND | ND | NL |
| Luna Sensation | medium (7/11) | 5R | 5 | 3R | 2 | NL | ND | NL |
| Luna Tranquility | medium (7/9) | 4 | 5 | NL | 1 | NL | ND | NL |
| Merivon | medium (7/11) | 5R | 5R | ND | NL (4) | NL | 0 | NL |
| Mettle, Perissim**, etc. | high (3) | NL | 5R | NL | NL | NL | ND | NL |
| Miravis Prime | medium (7/12) | 5 | 5 | 3 | NL (4) | NL | NL | NL |
| Orondis Gold | high (4/49) | NL | NL | NL | NL | 4 | NL | NL |
| Ph-D, Oso | high (19) | 3 | 4 | 3 | NL | NL | NL | NL |
| Pristine | medium (7/11) | 5R | 4R | ND | NL | NL | 0 | NL |
| Procure | high (3) | NL | 5R | NL (2) | NL | NL | NL (0) | NL |
| Protocol | medium (1/3) | 4R | 4R | 3 | NL | NL | 4 | NL |
| Quadris (Abound discont.), Acadia, Arius | high (11) | 1RR | 3R | 4R | NL (2) | NL | NL | NL |
| Quadris Top, Acadia ESQ8 | medium (3/11) | NL (2)R | 5R | 4R | NL | NL | 3 | NL |
| Quilt Xcel, Avaris 2XS, etc. | medium (3/11) | NL (3)R | 5R | 0R | NL (0) | NL | NL | NL |
| Quintec | high (13) | NL (3) | 5R | NL (4R) | NL (0) | NL | NL (0) | NL |
| Rally | high (3) | NL (0) | 5R | NL (3) | NL | NL | 4 | NL |
| Regev | medium (3/BM 01) | 3 | 5 | 4 | 5 | NL | ND | NL |
| Rhyme9 | high (3) | NL (0) | 5R | NL | NL | NL | NL | NL |
| Ridomil Gold SL, Ultra Flourish, etc.9 | high (4) | NL | NL | NL | NL | 4 | NL | NL |
| Rovral7, Meteor7, Iprodione**, Nevado** | high (2) | 4R | NL (0) | 0 | NL | NL | 0 | NL |
| Scala | high (9) | 3 | NL (2) | NL | NL | NL | NL | NL |
| Sulfur | low (M 02) | NL | 4 | NL | NL | NL | NL | NL |
| Switch5 | medium (9/12) | 5R | 2 | 4 | 4 | NL | NL | NL |
| Thiram | low (M 03) | 2 | NL (0) | 3 | NL | NL | 0 | NL |
| Topsin-M, T-Methyl, Incognito, etc.6 | high (1) | 1RR | 4 | 0 | NL | NL | NL (3) | NL |
| Torino | high (U 06) | NL | 5R | NL | NL | NL | NL | NL |
| Zivion S5 | low (48) | NL (0) | NL | 4 | NL | NL | NL | NL |
Rating: 5 = excellent and consistent, 4 = good and reliable, 3 = moderate and variable, 2 = limited and/or erratic, 1 = minimal and often ineffective, 0 = ineffective, NL = not on label, ND = no data, NC = not coded in FRAC.
| R | Resistance in this pathogen has been documented but performance is not fully compromised. |
| RR | High level of resistance documented in this pathogen and performance is significantly compromised. |
| * | Registration pending in California. |
| ** | Not registered, label withdrawn or inactive in California. |
| 1 | To reduce the risk of resistance development, start fungicide treatment with a multi-site mode of action; rotate or mix fungicides with different mode of action FRAC numbers for subsequent applications, use labeled rates (preferably the upper range), and limit the total number of applications per season. |
| 2 | Group numbers are assigned by the Fungicide Resistance Action Committee (FRAC) according to different modes of action (for more information, see www.frac.info). To minimize resistance, make no more than one application of a fungicide with a “high” or “medium” resistance risk of the same FRAC code before rotating to a fungicide with a different FRAC code. Resistance risk determined based on single-site = high risk; premix = medium risk; multi-site = low risk. |
| 3 | Efficacy rating for soil applied control of Phytophthora crown rot and leather rot of fruit. |
| 4 | Velum One is a fluopyram formulation for chemigation. Soil applications are designed for nematode management but may also suppress powdery mildew. |
| 5 | Apply as a transplant dip after digging/harvesting and prior to cold storage (nursery use) or prior to planting (field use). |
| 6 | Generic products may not be all listed and “etc.” indicates that other products may be available that have the same active ingredient. |
| 7 | Apply as preplant dip or foliar spray; do not apply after first fruiting flower. |
| 8 | Not for use in nurseries, on nursery transplants, or greenhouses (check label for details). |
| 9 | Foliar applications provide systemic treatment. |
| 10 | Apply at low rates since phytotoxicity (reddening of older leaves, slow growth and yield reduction) has been documented with repeated sprays. |
Acknowledgment: Adaskaveg et al., 2025. Fungicides, Bactericides, Biocolntrols, and Natural Products for Deciduous Tree Fruit and Nut, Citrus, Strawberry, and Vine Crops in California.