Source: PENNSYLVANIA STATE UNIVERSITY submitted to NRP
ADVANCING PEST MANAGEMENT FOR GRAPES AND BERRIES WITH ROBOTIC SPRAYING SYSTEM
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
ACTIVE
Funding Source
Reporting Frequency
Annual
Accession No.
1032282
Grant No.
2024-68008-42651
Cumulative Award Amt.
$300,000.00
Proposal No.
2023-09690
Multistate No.
(N/A)
Project Start Date
Jul 1, 2024
Project End Date
Jun 30, 2026
Grant Year
2024
Program Code
[A1701]- Critical Agricultural Research and Extension: CARE
Recipient Organization
PENNSYLVANIA STATE UNIVERSITY
408 Old Main
UNIVERSITY PARK,PA 16802-1505
Performing Department
(N/A)
Non Technical Summary
Pesticides play an important role in crop production by reducing crop loss and thereby helping to stabilize production. However, excessive use of pesticides has brought huge negative impacts to the environment and human health.Robotic precision pesticides application proposed in this project aims to address this issue in small fruit crops production such as grapes and berries. A robotic sprayer will be developed based on an unmanned ground robot, which can autonomously drive in a field with pre-set maps and spray based on canopy density. The sprayer will be evaluated with a series of field trials for pesticides application in a vineyard and a raspberry field. The performance in terms of chemical usage and working efficiency will be compared to a conventional sprayer. It is expected to significantly reduce chemical usage for small fruit growers and minimize the human involvement during spray operations. The results from this project will be disseminated to the grower communities through various extension activities such as articles, workshops, field demonstration, and adoption survey. In a long term, the precision and robotic spraying technologies developed in this project will enhance the sustainability of the small fruits industry in the U.S.
Animal Health Component
40%
Research Effort Categories
Basic
20%
Applied
40%
Developmental
40%
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
2161131116030%
2161123116010%
4021131202050%
4021123202010%
Goals / Objectives
The primary goal of the project is to develop and demonstrate a robotic spraying system for pest management in grape and berry fields to save pesticides and reduce chemical drift. Over the long term, the project is expected to provide an advanced plant protection tool for sustainable production and communities. Three objectives are included to achieve the proposed goal.Objective #1: Develop a robotic spraying system with an unmanned ground robot to reduce chemical usage and automate spraying operations.Objective #2: Field evaluation of the newly developed spraying system in grape and berry fields for sprayer performance and disease control efficacy.Objective #3: Extension and outreach for technology introduction, demonstration, and adoption to small fruit growers.
Project Methods
Objective #1: An unmanned ground robot-based sprayer will be developed by integrating a commercial ground robot, a sprayer controlling system, and a canopy measurement sensing system. A LiDAR sensor will be mounted on the robot to measure the canopy density of diverse crops. A controlling system will be developed to automatically adjust the spray rate, air speed, and spray angle of the sprayer. Finally, a robotic spraying system will be integrated and tested.Objective #2:With the integrated robotic spraying system, two field trials will be conducted for two consecutive seasons: one is for a wine grape field, and the other one is for a red raspberry field. The robustness of pest control using this newly developed robotic sprayer will be compared with conventional methods. Working efficiency, chemical savings, and drift reduction will be evaluated.Objective #3:This objective aims to develop a comprehensive in-person extension educational plan for introducing and demonstrating the robotic spraying system to grape and berry growers in the Mid-Atlantic region utilizing field days, twilight meetings and an in-depth workshop format on robotics at the Univ. of Maryland research farm and FREC. Results will be presented at winter meetings that reach large numbers of growers including the Mid-Atlantic Fruit and Vegetable Convention, and Delaware Ag Week. Articles will be written for grower newsletters including Penn State's "Fruit Times" and Penn State's "Vegetable and Small Fruit Gazette", and newsletters produced by the N. American Raspberry-Blackberry Association and the N. American Strawberry Growers Association.

Progress 07/01/24 to 06/30/25

Outputs
Target Audience:1. Professional society: Project PI He presented the outcomes from the project at various professional meetings, including 2025 Eastern Winery Exposition and Conference (March 25-27, 2025, Lancaster, PA), and Harvesting Innovation Webinar Series (March 25, 2025, Virtual). 2. Grower society: 1) PIs presented the research outcomes and demonstrated the robotic sprayer system in a commercial vineyard at 2025 Maryland Grape Growers Association field day (Jue 21, 2025, ~ 40 participants); 2) PI He introduced the project to various growers during 2025 Messick's Open House (January 31, 2025, ~40 participants). Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided?1. A graduate student from Co-PI Hu's lab had the opportunity to get training on conduct field research on evaluating wine grape disease symptoms and severity using different techniques. 2. A postdoc scholar from PI He's lab had the opportunities to get training on robotic spraying system development, including canopy based spray decision support, on-farm robotic system navigation, and precision spraying system development and evaluation. How have the results been disseminated to communities of interest?With the target audiences, we have disseminated our project results to multiple communities of interest via presentations and demonstrations. These communities include professional society, grower society, and some other groups. Please see 'Other products'. What do you plan to do during the next reporting period to accomplish the goals?Objective #1: 1. Develop a control system for individual nozzle angle control to accommodate the canopy variation in fields. 2. Integrate a LiDAR sensor into the current robotic spraying system to achieve real-time variable rate spraying on a robotic spraying system. Objective #2: 1. Continue field test and evaluation in a vineyard, and possibly repeat the same experiment in a raspberry field. Objective #3: 1. Publish an Extension article on robotic spraying system for small fruit crops throughPenn State Extension as well as University of Maryland Extension. 2. Conduct demonstrations and workshops for engaging various growers to enhance the interest of technology adoption.

Impacts
What was accomplished under these goals? Objective #1: A precision spraying system was developed with an unmanned ground robot. In this system, the spray nozzle can be controlled to spray to different height ranges. A mathematic model was established to calculate the angle control of the spray nozzle unit based on the crop canopy dimensions. Objective #2: The developed system was tested in a vineyard during 2025grape growing season. We tested the sprayer with two different levels of spray rate, and also there is a control set with conventional sprayer system. The chemical usage and the performance of pest control will be evaluated after the harvest. Objective #3: The robotic spraying system was demonstrated during the Maryland Grape Growers Association Summer Field Day. There are about 30 grape growers from Maryland and beyond participated in the field day. The demonstration showed the feasibility of the robotic spraying system for vineyards.

Publications