Ag Drone Spraying in San Joaquin County, CA for Orchards and Vines

Ag drone spraying prices in San Joaquin County

Ag drone spraying in San Joaquin County, CA is priced per acre for one pass, application only. The county's 2024 crop report totaled $3.14 billion, seventh in California. Almonds, grapes, walnuts and cherries alone were worth nearly $1.3 billion. The rates below cover that mix, from Lodi vineyards and Linden cherry orchards to Delta islands west of Stockton.

Service	Typical rate	Notes
Alfalfa, corn and silage passes	from $15/acre	Delta and east-side field crops
Tomatoes and row crops	from $16/acre	Where the label allows aerial use
Vineyard mildew and mite programs	from $17/acre	Lodi and Clements blocks
Almond and walnut orchards	from $19/acre	Higher volume, slower passes
Cherry and blueberry blocks	from $20/acre	Short pre-harvest windows

Product is billed separately, or the grower supplies it. California drone rates run about $14–22 per acre for corn and alfalfa, $17–34 for vineyards and $18–35 for orchards, with $18 typical in 2026. Our rates sit at the low end of those ranges. Price depends on spray volume, canopy height, block size, levees and power lines, and nearby homes and schools. The minimum charge is $375 per visit, which covers county registration, notices and setup.

San Joaquin County's top ten crops

Commodity	2024 value
Milk	$536.9M
Almonds	$492.3M
Grapes	$319.3M
Eggs and poultry products	$261.6M
Walnuts	$240.1M
Cherries	$240.0M
Cattle and calves	$165.6M
Tomatoes	$120.7M
Blueberries	$77.6M
Silage and other field crops	$70.6M

San Joaquin County led California in cherries, walnuts, blueberries, watermelons and eggs. The 2022 USDA census counted 3,439 farms averaging 251 acres. Almond values rose 43% and walnuts 61% as prices recovered, while grapes fell 19%. Some wine grapes were left unpicked in 2024, so vineyard growers are watching every input. Blueberries and tomatoes have also grown into major San Joaquin County crops, and both have short spray windows tied to picking and processor schedules. Silage corn and alfalfa for the county's dairies fill much of the remaining ground, especially on the Delta and the west side near Tracy.

How ag drone spraying works in San Joaquin County

1. Recommendation. The grower's pest control adviser sets the product, rate and timing, and confirms the label allows aerial use at the needed volume.
2. Notices and mapping. The operator files any required notices and maps homes, schools, levees, sloughs, wires and hives.
3. Flight. The drone works close over the canopy and shuts off at mapped buffers.
4. Report. The grower gets product, rate, acres, time and weather in writing, and the operator files the use report.

Almond, walnut and cherry timing

• Almonds and walnuts: navel orangeworm moves in at hull split, and the spray window is short. Walnut growers also time passes for codling moth and walnut husk fly in summer, and for walnut blight in wet springs.
• Cherries: San Joaquin is California's top cherry county. Spotted-wing drosophila can infest fruit as it colors, so preharvest sprays come in tight intervals. Rain near harvest also means fungicide passes on short notice.
• Coverage: mature nut trees are tall, and drone coverage depends on canopy size and label volume. The PCA decides which blocks suit a drone and which need an airblast sprayer. Younger orchards and replants are the strongest fit.

Lodi vineyards and Lodi Rules

The Lodi appellation sits largely in northern San Joaquin County, with nested appellations such as Jahant, Clements Hills, Mokelumne River and Borden Ranch. Lodi growers created the LODI RULES sustainable program in the late 1990s. It scores pesticides with its Pesticide Environmental Assessment System, and more than 1,200 vineyards now take part. A drone fits that kind of program: it treats only the blocks that need it, at the label rate, with low drift. Powdery mildew and mites drive most vineyard passes, usually at dawn before the afternoon breeze from the Delta picks up.

Delta islands and wet ground

West of Stockton, the Delta's peat islands sit below river level behind levees. After a wet spell or an irrigation set, ground rigs can't get into corn, alfalfa or tomato fields there for days. A drone flies over the field without touching it. Sloughs, drains and levee slopes are mapped as no-spray edges, and products and droplet sizes are chosen to keep residue out of Delta water. San Joaquin County growers also report through the irrigated lands program, so accurate records matter. Peat soils can also settle and crack, and operators note soft spots and ditches before choosing a landing pad near the field edge.

Airspace around Stockton, Lodi and Tracy

Stockton Metropolitan Airport has a control tower, so fields around south Stockton, French Camp and Lathrop need FAA authorization. Lodi, Kingdon and Tracy airports have no towers, but crop dusters, banner planes and medical helicopters still fly low through the county. Operators check airspace and notices before every job.

California certification and county registration

Drone applicators in California need FAA Part 107, a Part 137 certificate, and a Section 44807 exemption for drones over 55 pounds. They also need the DPR Unmanned Pest Control Aircraft Pilot Certificate, starting as an Apprentice under a Journeyman. On top of that come a Pest Control Business License with a Qualified Applicator Certificate or License, and annual registration with the San Joaquin County Agricultural Commissioner. Restricted materials need a permit and a Notice of Intent through CalAgPermits. SprayDays notifies the public 24 hours ahead, and fields within a quarter mile of a school carry extra reporting.