Lely widyawati - Academia.edu (original) (raw)

Papers by Lely widyawati

Research paper thumbnail of Efektivitas Kebijakan Pemerintah Indonesiadi Bidang Industri Otomotif Dalam Menghadapi Masyarakat Ekonomi Asean 2015

Research paper thumbnail of Threats to Texas Citrus from Exotic Vector-Borne Diseases

International Organization of Citrus Virologists Conference Proceedings (1957-2010), 2005

A number of arthropod pests of citrus which are also vectors of disease pathogens are present in ... more A number of arthropod pests of citrus which are also vectors of disease pathogens are present in Texas, but the pathogens are currently not present. Three species of false spider mite, Brevipalpus phoenicis (Geijskes), B. californicus (Banks) and B. obovatus Donnadieu, are the vectors of citrus leprosis virus and have been present in Texas for many years. The glassywinged sharpshooter, Homalodisca coagulata (Say), a vector of the citrus variegated chlorosis (CVC) bacterium, Xylella fastidiosa , is native to the area. The Asian citrus psylla, Diaphorina citri Kuwayama, the vector of Asian huanglongbing (HLB) or greening disease, is a recent introduction having first been reported in 2001. Leprosis and CVC are widespread in Brazil, have now been reported in Central America, and HLB has recently been found in Brazil. All therefore pose serious threats to the citrus industries of Texas and other states. The threat posed by Citrus tristeza virus (CTV) is different in that the virus is already present, but native aphid species are inefficient vectors. However, the brown citrus aphid, Toxoptera citricida (Kirkaldy), the effective vector of CTV is in Florida and Mexico and could arrive in Texas at any time.

Research paper thumbnail of Efektivitas Kebijakan Pemerintah Indonesiadi Bidang Industri Otomotif Dalam Menghadapi Masyarakat Ekonomi Asean 2015

Research paper thumbnail of Threats to Texas Citrus from Exotic Vector-Borne Diseases

International Organization of Citrus Virologists Conference Proceedings (1957-2010), 2005

A number of arthropod pests of citrus which are also vectors of disease pathogens are present in ... more A number of arthropod pests of citrus which are also vectors of disease pathogens are present in Texas, but the pathogens are currently not present. Three species of false spider mite, Brevipalpus phoenicis (Geijskes), B. californicus (Banks) and B. obovatus Donnadieu, are the vectors of citrus leprosis virus and have been present in Texas for many years. The glassywinged sharpshooter, Homalodisca coagulata (Say), a vector of the citrus variegated chlorosis (CVC) bacterium, Xylella fastidiosa , is native to the area. The Asian citrus psylla, Diaphorina citri Kuwayama, the vector of Asian huanglongbing (HLB) or greening disease, is a recent introduction having first been reported in 2001. Leprosis and CVC are widespread in Brazil, have now been reported in Central America, and HLB has recently been found in Brazil. All therefore pose serious threats to the citrus industries of Texas and other states. The threat posed by Citrus tristeza virus (CTV) is different in that the virus is already present, but native aphid species are inefficient vectors. However, the brown citrus aphid, Toxoptera citricida (Kirkaldy), the effective vector of CTV is in Florida and Mexico and could arrive in Texas at any time.