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
                                            Reding, Michael

                                                         - *Mike*item
                                            Zhu, Hepingitem
                                            ZONDAG, RANDY - OSU EXTENSION
  Submitted to: Extension Circular
                                    Publication Type: Research Notes
                                    Publication Acceptance Date: 12/7/2004
                                    Publication  Date: 3/12/2005
                                    Citation: Reding, M.E., Zhu, H., Zondag, R. 2005. Application of imidacloprid through drip irrigation for control of white grubs in field-grown nursery crops. Extension Circular 195.  p. 131-134.Interpretive Summary:
                                Technical Abstract: The larval stages of exotic scarabs (white grubs) are serious pests of nursery crops in the midwestern and northeastern states.  They injure and kill plants by feeding on the roots.  Control can be achieved by applying treatments of reduced-risk insecticides such as imidacloprid to the soil surface.  However, efficacy is dependent on applications of sufficient water to facilitate movement of the insecticide into the soil.  Growers who use drip irrigation tend to have difficulty applying sufficient water to move insecticides off the surface into the soil.  We tested drip irrigation as a delivery system for applying imidacloprid to control white grubs.  Our agricultural engineering group designed a system which allowed us to inject insecticide (imidacloprid) into drip irrigation lines in a commercial nursery.  The insecticide was applied to 6 Kousa dogwood trees in each of three rows on 1 July 2004.  This timing targeted the egg and early larval (grub) stages of the scarabs.  The trial was evaluated 21 September 2004.  Trees were dug by hand, the root balls broken apart, and the soil and roots were searched for grubs.  Four species of exotic white grubs were found with oriental beetle (Exomala orientalis) being the most common.  The insecticide treatment reduced grub numbers by 62% in the treated trees compared to the untreated (water only) trees (3.6 versus 9.4 grubs per tree, respectively).


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