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
 Southern Insect Management Research: Stoneville, MS
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    CareersSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Southeast Area Stoneville, Mississippi Southern Insect Management 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
                                            Parys, Katherineitem
                                            Snodgrass, Gordonitem
                                            Luttrell, Randallitem
                                            Allen, Clintitem
                                            Little, Nathan
  Submitted to: Journal of Economic Entomology
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 10/14/2015
                                    Publication  Date: 2/11/2016
                                    Publication URL: http://handle.nal.usda.gov/10113/61879Citation: Parys, K.A., Snodgrass, G.L., Luttrell, R.G., Allen, K.C., Little, N. 2016. Baseline susceptibility of Lygus lineolaris (Hemiptera:Miridae) to novaluron. Journal of Economic Entomology. 109(1):339-344;doi:10.1093/jee/tov318.Interpretive Summary: Tarnished plant bug populations were collected from the Mississippi River Delta of Arkansas, Louisiana, and Mississippi, and screened for susceptibility to the insecticide novaluron. Two different bioassays were used to evaluate susceptibility, and in 2013 both types of assays were run on several colonies in order to compare the methods. Susceptibility of populations using both methods was compared to insects collected from a location with a historically susceptible population. Results from the bioassays indicated that there was significant variability in susceptibility to the insecticide across the landscape, and populations from some locations were more susceptible to the insecticide than those from the historically susceptible population.
                                Technical Abstract: Tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), populations were collected from field locations in the Mississippi River Delta of Arkansas, Louisiana, and Mississippi. Third instar F1 nymphs from each field location, in addition to a laboratory colony, were screened for susceptibility to novaluron. Both a glass vial bioassay and a diet-incorporated bioassay used dose-response regression lines to calculate LC50 and LC90 values for novaluron. Mean LC50s for glass vial bioassays ranged from 44.70 ± 3.58 to 66.54 ± 4.19 μg/vial, while mean LC50s for diet-incorporated bioassays ranged from 12.10 ± 0.77 to 17.63 ± 2.42 μg/200 ml of artificial diet. A comparison of LC50 values from the same field population screened using both bioassay methods failed to show a relationship. LC50 values from field locations were compared to a historically susceptible population from Crossett, Arkansas. Results indicated that considerable variability in susceptibility to novaluron exists within field populations of tarnished plant bugs across the Delta, including some locations with lower LC50 values than a historically susceptible population.


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