Field Scale Aerial WeedScout

FieldInsights

Product Specification

Product Name:Field Scale Aerial WeedScout

Product SKU:71310-02

Revision Date:2024-03-20

Product Overview

Description

Field Scale Aerial WeedScout provides detection of weeds and delivers prescription herbicide spray maps within 24 hours of image data capture. This product utilizes directly georeferenced maps derived from high-resolution RGB imagery captured across an entire field. Specific deliverables for this product are crop dependent.

Recommended Use Cases

Crop Stress
Weed Pressure
Herbicide Application
Targeted Spray Application

Supported Crops

Soybean

Deliverables Summary

Field Aerial WeedScout Targeted Spray Prescription

Requirements

General Requirements

Requires FieldAgent Enterprise License (61006-##)
Requires Field Scale Project Setup (71300-00)
All "Cropping System Requirements" met
Optional: All "Targeted Spray Application Requrements" met
Imagery collected following all "Data Capture Requirements" via Flight Services Aerial WeedScout Data Capture (71007-05)
Imagery uploaded to the FieldAgent Field created by Field Scale Project Setup (71300-00)
Order Analytics submitted for Field Scale Aerial Weed Scout for uploaded Survey

Cropping System Requirements

Row Spacing greater than or equal to 14 inches (36 cm)
Conventional (or Reduced) Tillage (i.e., free from standing crop residue or stubble)

Target Spray Application Requirements

Spray Equipment Requirements

Nozzle System

One Of:

John Deere ExactApply™ with Individual Nozzle Control
Raven Hawkeye® with Individual Nozzle Control
Case IH AIM Command FLEX™ II with Individual Nozzle Control

Monitor System

One Of:

John Deere Gen 4 CommandCenter™
Raven Viper® 4

Tank System

One Of:

Single Tank
Dual Tank

Spray Application Requirements

A single tank systems cannot simultaneously spray contact herbicide in a targeted pattern and residual herbicide in a broadcast pattern. If residual herbicide is part of the field's weed control program and a single tank sprayer is used, the sprayer will need to make one pass for broadcast residual and another pass for targeted spray contact herbicides.

Spray Equipment Calibration Requirements

The sprayer and drone have different GPS systems. In order to deliver Field Scale Aerial WeedScout (71310-02) aligned to the sprayers GPS reference system, the offset between the two systems must be measured and recorded.

Completion of Flight Services Sprayer GPS System Calibration (71007-06) at least 2 weeks prior to first Planned Spray Application Date

If Flight Services Sprayer GPS System Calibration (71007-06) is not completed, then a zero offset between Sprayer and Drone GPS will be used

As-Applied Layer Requirements

After execution of targeted spray application, the as-applied layer will be provided by Customer to Sentera.

...

Data Capture Requirements

Imagery Type

RGB (Directly Georeferenced)

Ground Sample Distance

Less than 0.15cm

Timing by Crop

Crop	Timing/Growth Stage	Plant Size
Soybean	V1-R2; Prior to Post-Emergence Contact Herbicide Spray Application	Crop height less than 9 inch (20 cm); Row closure less than 50%
Corn/Maize	-	-
Cotton	-	-
Other	-	-

Flight Specifications

✥ Front-lap 50%; Side-lap as specified in table
✥✥ Speed listed is maximum speed and may vary based on environmental and/or field conditions
Sensor	Altitude	Speed	Overlap	Flight Direction	Buffer	Heading	Gimbal Pitch	Terrain Informed
65R + DGR, Fixed Mount	40ft (12m)	4mph (2m/s)	30%	Perpendicular to rows	-40ft (-12m)	Forward	-90° (Nadir)	On
Dual 65R + DGR, Fixed Mount	40ft (12m)	4mph (2m/s)	15%	Perpendicular to rows	-40ft (-12m)	Forward	-90° (Nadir)	On
Dual 65R + DGR, Gimballed	40ft (12m)	20mph (9m/s)	15%	Perpendicular to rows	-40ft (-12m)	Forward	-90° (Nadir)	On

Environmental Conditions

Lighting

Imagery should be captured between the time of 2 hours after sunrise and 2 hours before sunset. Consistent lighting conditions required for best results, including avoidance of hard shadows cast over the field which cause bright spots and dark spots in the dataset.

Wind

Wind conditions should be within the specified limits of the aircraft or system being used to carry the imaging sensor.

Precipitation

There should be no active precipitation during imagery capture.

Deliverables

Analytics

Analytic	Imagery	RGB (Directly Georeferenced)
Field Aerial WeedScout Targeted Spray Prescription (84010-01)

Analytic by Crop

Analytic	Soybean	Corn/Maize	Cotton	Other
Field Aerial WeedScout Targeted Spray Prescription (84010-01)

Field Aerial WeedScout Targeted Spray Prescription (84010-01)

Description

A layer where the location of individual weeds or groups of weeds are bounded with zones appropriately sized for intended spray equipment and can be used as a prescription to deliver a targeted spray herbicide application. Weed detection is designed for weeds with height greater than or equal to 0.25 inch (0.6 cm).

Deliverable List

Deliverable	Format	Description
Targeted Spray Prescription	GeoTiff	Targeted spray herbicide application prescription file and visualiztion layer. The ZIP file can be unzipped and the four files (.shp, .shx, .dbf, .prj) can be copied to the sprayer monitor to execute the prescription. The GeoTiff file can be viewed in FieldAgent.
Side-by-Side Targeted Spray Prescription	GeoTiff	Side-by-side targeted spray herbicide application prescription file and visualiztion layer, where one half of the field is assigned a targeted spray prescription and the other half of the field is assigned a broadcast prescription. This deliverable is intended for use in field trials to evaluate weed control efficacy of Aerial WeedScout targeted spray herbicide application compared to broadcast herbicide application. The ZIP file can be unzipped and the four files (.shp, .shx, .dbf, .prj) can be copied to the sprayer monitor to execute the prescription. The GeoTiff file can be viewed in FieldAgent.

Data Attributes

Targeted Spray Prescription

Attribute	Description	Units Metric	Units Imperial
Rate	The prescribed herbicide rate. For field areas with weeds detected, the rate is the Customer provided rate (or the default rate of 15 gallons per acre if not provided by Customer). For field areas without weeds detected, the rate is set to 0 gallons per acre.	Liters / Hectare	Gallons / Acre

Side-by-Side Targeted Spray Prescription

Attribute	Description	Units Metric	Units Imperial
Rate	The prescribed herbicide rate. For field areas assigned to the targeted spray prescription where weeds are detected or field areas assigned to the broadcast prescription, the rate is the Customer provided rate (or the default rate of 15 gallons per acre if not provided by Customer). For field areas assigned to the targeted spray prescription where weeds are not detected, the rate is set to 0 gallons per acre.	Liters / Hectare	Gallons / Acre