Agriculture: Nectarine Pest Management Guidelines

Fungicide Efficacy for Nectarine Diseases—Biocontrols and Natural Products

Trade name1 Biological or natural product (FRAC group number)2 Brown rot PM3 Scab Rust Leaf curl Shot hole
blossom fruit
Botector Aureobasidium pullulans BM 02 3 2 NL (3) NL NL NL NL
Taegro 2** B. amyloliquefaciens FZB BM 02 2 1 3 NL NL NL NL
Serifel B. amyloliquefaciens MBI600 BM 02 2 1 3 NL NL NL 2
Sonata B. pumilis QST2808 BM 02 2 1 3 ND NL NL 2
Aviv B. subtilis IAB/BS03 BM 02 2 2 3 ND ND NL 2
Serenade B. subtilis QST 713 BM 02 2 1 2 ND NL NL 2
Double Nickel 55 Bacillus amyloliquefaciens D747 BM 02 2 1 3 NL NL 2 2
Dart* capric and caprylic acids NC 3 2 NL (2) NL NL NL NL
Cinnacure, Seican, Cinnerate cinnamaldehyde BM 03 2 1 3 NL NL NL NL
Procidic citric acid NC NL NL ND ND ND NL NL
EF400 clove, rosemary, peppermint oils BM 01 NL NL 3 NL NL NL NL
Copper copper M 01 1 1 1 2 2 4 4
ProBlad Verde* Lupinus albus BM 01 3 2 3 NL NL NL NL
Trilogy, Rango, Terraneem neem oil BM 01 1 1 2 ND 2 NL 1
Oxidate, Perasan peroxyacetic acid (oxidizer) 2 2 2 NL NL 1 1
Oso polyoxin-D 19 3 (4) 3 3 ND NL NL NL (2)
Armicarb**, Milstop (peach only) potassium bicarbonate NC NL NL 3 NL NL NL NL
Regalia Reynoutria sachalinensis P 05 2 2 3 ND ND NL ND
Actinovate AG Streptomyces lydicus BM 02 1 1 2 NL NL ND NL
Sulfur Sulfur M 02 1 0 4 4 2 0 0
EcoSwing Swinglea glutinosa BM 01 2 2 3 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, and NC = not coded in FRAC.

* Registration pending in California.
** Not registered, label withdrawn or inactive in California.
1 Alphabetically arranged by biological or natural product name.
2 FRAC groups are also provided as BM- or P-number groups. In general, sulfur compounds are fungicidal and may affect applications of fungal biocontrols (e.g., Botector); whereas copper may affect applications of bacterial biocontrols (e.g., Actinovate, Double Nickel 55, and Serenade). Rotations must consider these factors.
3 PM = powdery mildew.

Acknowledgment: Adaskaveg et al., 2025. Fungicides, Bactericides, Biocontrols, and Natural Products for Deciduous Tree Fruit and Nut, Citrus, Strawberry, and Vine Crops in California.

Text Updated: 07/24
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