EPPO Distribution List for Trogoderma granarium
Due to new information or modifications provided by several countries during the validation of geographical data, the distribution list for Trogoderma granarium can be modified as follows.
EPPO Distribution List: Trogoderma granarium
It is very important to distinguish between records which relate to introductions and those of established infestations. T. granarium is established within an area broadly limited north by the 35ø parallel, south by the Equator, west by West Africa and east by Myanmar; i.e. the warm dry regions along the Suez route from the Indian subcontinent to Europe. T. granarium has been introduced into areas of similar climatic conditions elsewhere, especially the alternative route between India and Europe around Africa. Initially, these introductions caused severe damage but outbreaks have been local and have, in most cases, been eradicated. In general, T. granarium is only successful in competition with other major stored product pests in conditions of low humidity.
T. granarium has also established in some areas of unfavourable climate, in protected environments only, for example in Western Europe.
EPPO region: Established in Algeria (potential EPPO country), Austria (protected environments only), Cyprus, Egypt (potential EPPO country), Greece, Israel, Lebanon (potential EPPO country), Libya (potential EPPO country), Morocco, Spain, Switzerland (protected environments only), Syria (potential EPPO country), Tunisia, Turkey (south-eastern), UK (protected environments only). Found in the past but did not establish in Belgium, Denmark, Germany (eradicated), Hungary, Ireland, Luxembourg, Netherlands, Russia, Sweden. Intercepted only in Bulgaria, former Czechoslovakia, Italy, Poland, Portugal.
Asia: Afghanistan, Bangladesh (unconfirmed), Cyprus, India, Indonesia (found but not established), Iran, Iraq, Israel, Japan (eradicated), Lebanon, Malaysia (eradicated), Myanmar (Burma), Pakistan, Saudi Arabia, Sri Lanka, Syria, Taiwan, Turkey (south-eastern), Yemen.
Africa: Algeria, Burkina Faso, Egypt, Kenya (found but not established), Libya, Mali, Mauritania, Morocco, Niger, Nigeria (mainly in north), Senegal, Sierra Leone (found but not established), Somalia, South Africa (eradicated), Sudan, Tanzania (found but not established), Tunisia, Zambia, Zimbabwe.
North America: Mexico (unconfirmed), USA (found but not established in Arizona, California, New Mexico).
South America: Venezuela.
Oceania: Intercepted only in Australia (Beal, 1956; Bailey, 1958), found but not established in New Zealand.
This distribution list replaces all previous published EPPO Distribution Lists on Trogoderma granarium!
Sources
EPPO Secretariat, 1994-07.