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
 close



Research
                Research Home
                            National Programs
                            Research Projects
                            Scientific Manuscripts
                            International Engagement
                            Scientific Software/Models
                            Databases and Datasets
                            Office of Scientific Quality Review
            Media
                News & Features
                            Multimedia
                            Briefing Room
                            Down on the Farm
                            Press Room
                            Science in Your Shopping Cart
                            Scientific Discoveries
                            Tellus
                            Under the Microscope
            About ARS
                About ARS Home
                            Staff Directory
                            Labs and Research Centers (Map)
                            Headquarter Offices
                            Organizational Chart
                            Employee Services (REE Employees Only)
                            Office of Outreach, Diversity, and Equal Opportunity
            Work With Us
                Work With Us Home
                            ARS Vacancies at USAJOBS
                            Careers at ARS Information
                            Scientific Collaborations
                            Extramural Agreements
                            1890 Faculty Research Sabbatical ProgramSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Office of International Research Engagement and Cooperation





- About OIREC
- International Research Partnerships
- Global Food Security
- Regional Contacts
- Office of International Research Engagement and Cooperation Team
- About OBCL
- OBCL Research Highlights
- Archive OBCL Research Highlights

Regional Contactsheadline bar Regional Contacts **Country/Area**
**Regional Specialist**
**Email**
**Phone Number**Afghanistan
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Albania
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Algeria
John Shekailo
John.Shekailo@usda.gov
571-334-0516Andorra
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Angola
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Antigua and Barbuda
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Argentina
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Armenia
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Australia
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Austria
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Azerbaijan
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Bahrain
John Shekailo
John.Shekailo@usda.gov
571-334-0516Bangladesh
Derek Thor Cary
Derek.Cary@usda.gov
301-837-8787Barbados
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Belarus
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Belgium
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Belize
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Benin
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Bhutan
Derek Thor Cary
Derek.Cary@usda.gov
301-837-8787Bolivia
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Bosnia and Herzegovina
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Botswana
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Brazil
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Brunei
John Shekailo
John.Shekailo@usda.gov
571-334-0516Bulgaria
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Burkina Faso
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Burma
John Shekailo
John.Shekailo@usda.gov
301-504-3274Burundi
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Cambodia
John Shekailo
John.Shekailo@usda.gov
571-334-0516Cameroon
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Canada
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Cape Verde
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Central African Republic
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Chad
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Chile
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535China
Derek Thor Cary
Derek.Cary@usda.gov
301-837-8787Colombia
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Comoros
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Costa Rica
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Croatia
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Cuba
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Cyprus
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Czech Republic
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Democratic Republic of the Congo
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Denmark
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Djibouti
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Dominica
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Dominican Republic
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Ecuador
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Egypt
John Shekailo
John.Shekailo@usda.gov
571-334-0516El Salvador
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Equatorial Guinea
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Eritrea
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Estonia
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Ethiopia
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Federated States of Micronesia
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Fiji
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Finland
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772France
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Gabon
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Gambia, The
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Georgia
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Germany
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Ghana
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Greece
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Grenada
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Guatemala
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Guinea
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Guinea-Bissau
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Guyana
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Haiti
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Honduras
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Hungary
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Iceland
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772India
Derek Thor Cary
Derek.Cary@usda.gov
301-837-8787Indonesia
John Shekailo
John.Shekailo@usda.gov
571-334-0516Iran
John Shekailo
John.Shekailo@usda.gov
571-334-0516Iraq
John Shekailo
John.Shekailo@usda.gov
571-334-0516Ireland
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Israel
John Shekailo
John.Shekailo@usda.gov
571-334-0516Italy
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Ivory Coast
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Jamaica
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Japan
Derek Thor Cary
Derek.Cary@usda.gov
301-837-8787Jordan
John Shekailo
John.Shekailo@usda.gov
571-334-0516Kazakhstan
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Kenya
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Kiribati
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Kosovo
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Kuwait
John Shekailo
John.Shekailo@usda.gov
571-334-0516Kyrgyzstan
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Laos
John Shekailo
John.Shekailo@usda.gov
571-334-0516Latvia
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Lebanon
John Shekailo
John.Shekailo@usda.gov
571-334-0516Lesotho
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Liberia
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Libya
John Shekailo
John.Shekailo@usda.gov
571-334-0516Liechtenstein
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Lithuania
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Luxembourg
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Madagascar
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Malawi
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Malaysia
John Shekailo
John.Shekailo@usda.gov
571-334-0516Maldives
Derek Thor Cary
Derek.Cary@usda.gov
301-837-8787Mali
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Malta
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Marshall Islands
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Mauritania
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Mauritius
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Mexico
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Moldova
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Monaco
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Mongolia
Derek Thor Cary
Derek.Cary@usda.gov
301-837-8787Montenegro
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Morocco
John Shekailo
John.Shekailo@usda.gov
571-334-0516Mozambique
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Namibia
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Nauru
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Nepal
Derek Thor Cary
Derek.Cary@usda.gov
301-837-8787Netherlands
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772New Zealand
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Nicaragua
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Niger
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Nigeria
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546North Korea
Derek Thor Cary
Derek.Cary@usda.gov
301-837-8787North Macedonia
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Norway
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Oman
John Shekailo
John.Shekailo@usda.gov
571-334-0516Pakistan
Derek Thor Cary
Derek.Cary@usda.gov
301-837-8787Palau
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Palestinian Authority
John Shekailo
John.Shekailo@usda.gov
571-334-0516Panama
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Papua New Guinea
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Paraguay
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Peru
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Philippines
John Shekailo
John.Shekailo@usda.gov
571-334-0516Poland
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Portugal
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Qatar
John Shekailo
John.Shekailo@usda.gov
571-334-0516Republic of the Congo
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Romania
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Russia
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Rwanda
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Saint Kitts and Nevis
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Saint Lucia
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Saint Vincent and the Grenadines
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Samoa
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546San Marino
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772São Tomé and Príncipe
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Saudi Arabia
John Shekailo
John.Shekailo@usda.gov
571-334-0516Senegal
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Serbia
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Seychelles
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Sierra Leone
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Singapore
John Shekailo
John.Shekailo@usda.gov
571-334-0516Slovakia
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Slovenia
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Solomon Islands
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Somalia
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546South Africa
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546South Korea
John Shekailo
John.Shekailo@usda.gov
571-334-0516South Sudan
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Spain
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Sri Lanka
Derek Thor Cary
Derek.Cary@usda.gov
301-837-8787Sudan
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Suriname
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Swaziland
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Sweden
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Switzerland
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Syria
John Shekailo
John.Shekailo@usda.gov
571-334-0516Taiwan
Derek Thor Cary
Derek.Cary@usda.gov
301-837-8787Tajikistan
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Tanzania
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Thailand
John Shekailo
John.Shekailo@usda.gov
571-334-0516The Bahamas
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Timor-Leste
John Shekailo
John.Shekailo@usda.gov
571-334-0516Togo
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Tonga
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Trinidad and Tobago
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Tunisia
John Shekailo
John.Shekailo@usda.gov
571-334-0516Turkey
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Turkmenistan
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Tuvalu
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Uganda
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Ukraine
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772United Arab Emirates
John Shekailo
John.Shekailo@usda.gov
571-334-0516United Kingdom
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Uruguay
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Uzbekistan
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Vanuatu
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Vatican City
Marcella Witting
Marcella.Witting@usda.gov
301-504-4772Venezuela
Ryan Moore
Ryan.Moore@usda.gov
301-504-4535Vietnam
John Shekailo
John.Shekailo@usda.gov
571-334-0516Western Sahara
John Shekailo
John.Shekailo@usda.gov
571-334-0516Yemen
John Shekailo
John.Shekailo@usda.gov
571-334-0516Zambia
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546Zimbabwe
Irlene Santos
Irlene.Santos@usda.gov
301-504-4546


Return to top


Research
                            Media
                            About ARS
                            Work With Us


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