U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Application Technology Research: Wooster, OH
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                                    Software
                People

                    Staff Listing
                                    Careers


        


                    Departments
                        Agricultural Engineering
                                    Entomology
                                    Horticulture
                                    Plant Pathology
                                    IR-4 programSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Midwest Area Wooster, Ohio Application Technology Research Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            Zhu, Hepingitem
                                            Derksen, Richarditem
                                            GULER, H - OSUitem
                                            Krause, Charlesitem
                                            OZKAN, H - OSU
  Submitted to: Aspects of Applied Biology
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 12/20/2005
                                    Publication  Date: 1/10/2006
                                    Citation: Zhu, H., Derksen, R.C., Guler, H., Krause, C.R., Ozkan, H.E. 2006. Investigation of Nursery Canopy and Ground Deposition with Three Spray Techniques. International Advances in Pesticide Application--Aspects of Applied Biology. 77:489-496.Interpretive Summary:
                                Technical Abstract: Spray techniques are needed in nursery industry to obtain optimum pesticide spray management practices economically and effectively with minimum canopy disturbance and minimum pesticide waste. Spray deposits inside crabapple trees and off-target loss at different distances downstream from the sprayer were investigated with three different treatments (conventional hollow cone nozzles, air induction nozzles, and conventional hollow cone nozzles with a drift retardant) used by an air blast sprayer in a nursery field. Droplet size distributions across spray patterns were measured with a laser particle/droplet image analysis system. In general, there was no significant difference for deposits within nursery tree canopies and on the ground with three different spray techniques. Using the orchard application rate in nurseries resulted in saturated spray deposition within tree canopies and excessive spray deposition on the ground. The application rate should be reduced to reduce pesticide waste and labor cost. In nursery application, it was not necessary to place a large capacity nozzle at the top of the air blast sprayer as normally recommended for orchard spray applications. There was no advantage to use air induction nozzles or hollow cone nozzles with drift retardant in the air blast sprayer to reduce off-target loss potential especially on the ground.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov