New data on quarantine pests
By browsing through the literature, the EPPO Secretariat has extracted the following new data concerning quarantine pests.
- New geographical records
In China, Liriomyza huidobrensis (EPPO A2 quarantine pest) is reported in Yunnan. The EPPO Secretariat had previously no data on the occurrence of this pest in China. Review of Agricultural Entomology, 87(11), p 1416 (10585).
Phyllocnistis citrella was found in Chile in 1998. Review of Agricultural Entomology, 87(11), p 1428 (10680).
Scaphoideus titanus, vector of grapevine flavescence dorée phytoplasma (EPPO A2 quarantine pest), was discovered in 2 vineyards in the province of Massa Carrara, Toscana, Italy, in 1998. But grapevine flavescence dorée phytoplasma has not been found. Review of Plant Pathology, 78(10), p 955 (7216).
In Poland, Stephanitis takeyai (EPPO Alert List) was discovered in a nursery on Pieris japonica imported from Germany (this pest is not known to occur there). Review of Agricultural Entomology, 87(10), p 1325 (9901).
In Kuwait, tomato yellow leaf curl begomovirus (EPPO A2 quarantine pest) has been causing a devastating disease in field-grown tomatoes since 1993. Major yield losses are observed. Review of Plant Pathology, 78(11), p 1043 (7877).
- Detailed records
Bean golden mosaic begomovirus (EPPO A1 quarantine pest) occurs on beans in the State of Bahia in Brazil. Bianchini, A. (1999) Resistance to bean golden mosaic virus in bean genotypes. Plant Disease, 83(7), 615-620.
Citrus leprosis ?rhabdovirus (EPPO A1 quarantine pest) and its vector Brevipalpus phoenicis were found for the first time in the State of Tocantins, Brazil. Review of Plant Pathology, 78(11), p 1053 (7947).
Citrus ringspot ?virus (EU Annexes) is one of the major constraint of citrus production in India. It is widely distributed in citrus-growing areas in Punjab, Haryana, Rajasthan, Uttar Pradesh, Andhra Pradesh and Karnataka with incidence ranging from 10 to 100%. Review of Plant Pathology, 78(10), p 956 (7219).
Liriomyza bryoniae (EU Annexes) and Liriomyza sativae (EPPO A1 quarantine pest) are both present in Henan Province, China, on vegetable crops. The most widespread and damaging is L. sativae. These two species also occur in the suburbs of Beijing. Review of Agricultural Entomology, 87(11), p 1407 ; 1420 (10522 ; 10620).
Mycosphaerella dearnessii (EPPO A2 quarantine pest) occurs in Jiangsu Province, China. Review of Plant Pathology, 78(11), p 1072 (8088).
Spodoptera litura (EPPO A1 quarantine pest) occurs in Zhejiang Province, China. Review of Agricultural Entomology, 87(10), p 1291 (9651).
Ralstonia solanacearum (EPPO A2 quarantine pest) is present on tomato in Orissa, India. Review of Plant Pathology, 78(10), p 943 (7125).
- New vector
The glassy-winged sharpshooter, Homalodisca coagulata is a new vector of Xylella fastidiosa (EPPO A1 quarantine pest). It occurs in southern USA and northern Mexico. In Georgia, Florida and other southern states it is considered as a major vector of X. fastidiosa to peach and grape. It has recently become established in California, and is perceived as a very serious threat to vineyards and almond orchards. It is also felt that it could play an important role in the spread of oleander leaf scorch disease (also caused by X. fastidiosa). Review of Plant Pathology, 78(10), p 902 (6825).
Further reading on INTERNET
http://www.cnr.berkeley.edu/xylella/oss.html
http://www.cdfa.ca.gov/pests/
Sources
EPPO Secretariat, 1999-11.
Review of Agricultural Entomology, 87(10 ; 11). October ; November 1999.
Review of Plant Pathology, 78(10 ; 11). October ; November 1999.