- 08 Feb 2018 Asian greening, citrus - China
- 08 Feb 2018 Poliomyelitis update (07): (Pakistan, Afghanistan, Congo DR)
- 08 Feb 2018 Undiagnosed dieback, cocoa - Nigeria: southwest
- 08 Feb 2018 Hepatitis A - USA (06): (CA)
- 08 Feb 2018 Botulism - Brazil: (PE, SP)
- 08 Feb 2018 Glanders, equine - India (02): (GJ)
- 08 Feb 2018 Anthrax - Namibia: (Etosha Natl Park) wildlife, dust bathing risk
- 08 Feb 2018 Syphilis - USA: congenital, rising incidence
- 08 Feb 2018 Avian influenza (27): Israel, Taiwan HPAI H5N8, Afghanistan, HPAI H5, OIE, RFI
- 08 Feb 2018 Psittacosis - Argentina: (ER)
- 08 Feb 2018 Dengue/DHF update (03): Americas, research, observations
- 08 Feb 2018 Carbapenem-resistant organisms - New Zealand: (Auckland) nosocomial, burn center
- 08 Feb 2018 Yellow fever - Africa (03): Nigeria (BO) vaccination campaign
- 08 Feb 2018 Yellow fever - Americas (11): Brazil monkeys
- 08 Feb 2018 Influenza (06): WHO global update, universal vaccine
- 07 Feb 2018 Phytoplasma wilt, banana - Papua New Guinea: spread
- 07 Feb 2018 Tuberculosis, elephant - Zimbabwe: diagnosis, prevention and control strategies
- 07 Feb 2018 Encephalitis - India: (UP) AES due to scrub typhus
- 07 Feb 2018 HIV - India: (UP) wandering medical practitioner, shared needle, alert
- 07 Feb 2018 Varicella update (02): USA (NY) background
- 07 Feb 2018 Avian influenza (26): UK (England) HPAI H5N6, non-poultry birds, spread
- 07 Feb 2018 Legionellosis - USA: (MI) fatal, low chlorine levels, Flint city water, 2014-15
- 06 Feb 2018 Rift Valley fever - South Sudan (03): (EL)
- 06 Feb 2018 Kyasanur Forest disease - India (06): (MH) alert
- 06 Feb 2018 Lassa fever - West Africa (07): Nigeria
- 05 Feb 2018 Avian influenza (25): Iran (GI) HPAI H5N6, new strain, OIE
- 05 Feb 2018 Streptococcus group A, scarlet fever - UK: (England, Wales) increased cases
- 05 Feb 2018 New in IJID (02): February 2018
- 05 Feb 2018 Avian influenza, human (05): human-animal interface, WHO
- 05 Feb 2018 False smut, rice - India: (TN)
- 05 Feb 2018 Measles update (09): Europe, Caribbean, Central America
- 04 Feb 2018 Varicella update (01): USA (NY)
- 04 Feb 2018 Panleukopenia, feline - Australia: (VI)
- 04 Feb 2018 Koi herpesvirus disease - South Africa: (NL) OIE
- 04 Feb 2018 Avian influenza (24): UK (England) HPAI H5N6, wild birds
- 04 Feb 2018 Epizootic ulcerative syndrome, fish - South Africa: (Kruger Natl Park) OIE
- 03 Feb 2018 Bovine tuberculosis - Armenia: (ER), zoo, camelid, OIE
- 03 Feb 2018 Staph. aureus (MRSA) - Japan: human-to-horse transmission
- 03 Feb 2018 Rabies (09): Asia (Israel) wildlife, spread (India) human, treatment modified
- 03 Feb 2018 Foot & mouth disease - Zimbabwe: (MW, ME) bovine, serotype not typed, OIE
- 03 Feb 2018 Botulism - Canada (02): trout caviar, risk, further expanded recall
- 03 Feb 2018 Scabies - Spain (02): (CT)
- 03 Feb 2018 Tuberculosis, MDR - Nepal
- 03 Feb 2018 Campylobacteriosis - USA (02): canine, human, CDC advisory
- 03 Feb 2018 Vibrio vulnificus - Uruguay: fatal, alert
- 03 Feb 2018 Malaria - Southeast Asia: increasing artemisinin resistance
- 02 Feb 2018 Poliomyelitis update (06): Global (Afghanistan)
- 02 Feb 2018 Avian influenza (23): China (Hong Kong) poultry, HPAI H5N6, OIE
- 02 Feb 2018 Japanese encephalitis - Malaysia: (SK)
- 02 Feb 2018 Salmonellosis, st. Agona - France (04): infant formula
- 02 Feb 2018 Melioidosis - Australia: (NT)
- 01 Feb 2018 Measles update (08): Asia, Central America, North America, Europe
- 01 Feb 2018 Hantavirus - Americas (09): USA, Canada
- 01 Feb 2018 Lassa fever - West Africa (06): Nigeria (DE, ON)
- 01 Feb 2018 Population decline, apis - USA: (FL)
- 01 Feb 2018 Zika virus (03): Americas, Asia, research, observations
- 01 Feb 2018 Hantavirus - Americas (08): Chile (LL) susp.
- 01 Feb 2018 Anthrax - Zimbabwe (02): 2016, OIE
- 01 Feb 2018 Legionellosis - Portugal: (Lisbon) nosocomial, RFI
- 01 Feb 2018 Cryptococcus neoformans - USA: (CA) meningitis, immunocompet., marijuana smoker
- 01 Feb 2018 Crimean-Congo hem. fever - East Africa (03): Uganda (NK)
- 01 Feb 2018 Mycoplasma bovine, bovine - New Zealand (02)
- 01 Feb 2018 Equine herpesvirus - North America (06): USA (PA,GA,OR) equine
- 01 Feb 2018 Botulism, avian - New Zealand: (WK/BP) waterfowl
- 31 Jan 2018 Avian influenza (22): South Korea (KG) HPAI H5N6, poultry, spread
- 31 Jan 2018 Pertussis (02): USA, Venezuela, New Zealand
- 31 Jan 2018 Lassa fever - West Africa (05): Nigeria
- 31 Jan 2018 Yellow fever - Americas (10): Brazil
- 31 Jan 2018 Poliomyelitis update (05): Afghanistan, RFI
- 31 Jan 2018 Listeriosis - South Africa (05): fatal, more cases
- 30 Jan 2018 Rift Valley fever - South Sudan (02): (EL)
- 30 Jan 2018 Hantavirus - Americas (07): Uruguay (CA) fatal, susp.
- 30 Jan 2018 Undiagnosed hemorrhagic illness - Cameroon: RFI
- 30 Jan 2018 Anthrax - Zimbabwe: human
- 30 Jan 2018 Hand, foot & mouth disease update (01): Japan, research
- 30 Jan 2018 Hantavirus - Americas (06): Panama (LS)
- 30 Jan 2018 Kyasanur Forest disease - India (05): (MH) new cases
- 29 Jan 2018 Liberibacter, carrot - Portugal: 1st rep
- 29 Jan 2018 Yellow fever - Americas (09): Brazil, monkeys
- 29 Jan 2018 Foot & mouth disease - China (02): (NX) st. O, livestock, OIE
- 29 Jan 2018 African swine fever - Europe (03): Ukraine, wild boar, domestic swine, OIE
- 29 Jan 2018 Hantavirus - Americas (05): Chile (LR)
- 29 Jan 2018 Avian influenza (21): Netherlands, wild bird, HPAI H5N6, OIE
- 29 Jan 2018 Avian cholera - USA: (IN) wild fowl
- 29 Jan 2018 Cholera, diarrhea & dysentery update (05): Asia (Yemen) WHO
- 28 Jan 2018 MERS-CoV (07): Saudi Arabia
- 28 Jan 2018 Hepatitis A - USA (05): (MI, UT, CA)
- 28 Jan 2018 Measles update (07): Africa, USA, Caribbean, Canada, Europe
- 28 Jan 2018 Salmonellosis, st. Agona - France (03): infant formula
- 27 Jan 2018 Equine herpesvirus - North America (05): USA (NY) equine
- 27 Jan 2018 Rabies (08): Asia (Malaysia-SK) human, animal
- 27 Jan 2018 Mycoplasma bovine, bovine - New Zealand (03): correction
- 27 Jan 2018 Campylobacteriosis - USA: canine, human, CDC advisory
- 27 Jan 2018 Cholera, diarrhea & dysentery update (04): Africa
- 27 Jan 2018 Yellow fever - Americas (08): Brazil
- 27 Jan 2018 Diphtheria - Australia: (QL)
- 27 Jan 2018 Q fever - Chile
- 27 Jan 2018 Foodborne illness - Argentina: fatalities, pesticide susp.
- 27 Jan 2018 Avian influenza (20): Taiwan, poultry, HPAI H5N2, spread, OIE
- 27 Jan 2018 Hepatitis A - Spain: (PM) restaurant
- 27 Jan 2018 Typhoid fever - Pakistan (02): (SD) multidrug resistance, fatal
- 27 Jan 2018 Mycoplasma bovine, bovine - New Zealand (03)
- 27 Jan 2018 Hepatitis E - Namibia (03): (KH) fatal
- 26 Jan 2018 MERS-CoV (06): Saudi Arabia, WHO
- 26 Jan 2018 Avian influenza (19): Iran, HPAI H5N8 susp, poultry, spread, RFI
- 26 Jan 2018 Condor die-off - Argentina: poisoning susp.
- 26 Jan 2018 Equine herpesvirus - North America (04): (MD) equine
- 26 Jan 2018 Listeriosis - South Africa (04): comment
- 26 Jan 2018 Contagious bovine pleuropneumonia - Nigeria: (KT) spread
- 26 Jan 2018 Yellow fever - Americas (07): Brazil vaccination PAHO/WHO
- 26 Jan 2018 Newcastle disease - Colombia: (CU) avian, alert
- 26 Jan 2018 Dengue/DHF update (02): Asia, Pacific, vaccination, research
- 26 Jan 2018 Undiagnosed collapse, peanut - USA: (FL), RFI
- 25 Jan 2018 Lassa fever - West Africa (04): Nigeria
- 25 Jan 2018 Poliomyelitis update (04): global (Afghanistan, Pakistan), Nigeria rumors
- 25 Jan 2018 Glanders, equine - Indonesia: (JK), OIE
- 25 Jan 2018 Anthrax, human, livestock - Argentina: (BS) 2017
- 25 Jan 2018 Avian influenza (18): UK (England) HPAI H5N6, wild birds
- 25 Jan 2018 Yellow fever - Africa (02): Nigeria vaccination campaign
- 24 Jan 2018 Rift Valley fever - Gambia: (BJ) WHO
- 24 Jan 2018 Kyasanur Forest disease - India (04): (KL)
- 24 Jan 2018 Typhoid fever - Pakistan: (SD) multidrug resistance, fatal, RFI
- 24 Jan 2018 Rift Valley fever - Uganda
- 24 Jan 2018 Yellow fever - Americas (06): Brazil (SP)
- 24 Jan 2018 MERS-CoV (05): Saudi Arabia
- 24 Jan 2018 Lassa fever - West Africa (03): Benin (AK) ex Nigeria, WHO
- 24 Jan 2018 Bovine tuberculosis - Ireland (03): (KY) epidemiological notes
- 24 Jan 2018 Lassa fever - West Africa (02): Nigeria, Benin (AK) ex Nigeria
- 24 Jan 2018 Botulism - Nigeria: (Abuja) fish, fatal
- 24 Jan 2018 Yellow fever - Americas (05): Brazil, WHO
- 24 Jan 2018 Foodborne illness - China: (HB) sodium nitrate, children
- 24 Jan 2018 Equine herpesvirus - North America (03): USA (PA)
- 23 Jan 2018 Bluetongue - Europe: Italy (SC) ovine, st. 3, 2017, transb epidemiology
- 23 Jan 2018 Avian influenza (17): Afghanistan (KB), poultry HPAI H5, OIE
- 23 Jan 2018 Equine influenza, equine - Chile: serotype H3N8, OIE
- 23 Jan 2018 Measles update (06): Americas, Europe, Asia/Pacific
- 23 Jan 2018 Avian Influenza, human (04): Iraq (SD), NOT
- 22 Jan 2018 Listeriosis - South Africa (03): fatal, increasing incidence, ST6
- 22 Jan 2018 Bovine tuberculosis - Ireland (02): comment, RFI
- 22 Jan 2018 Avian influenza, human (03): Iraq (SD)
- 22 Jan 2018 Calendar (01): 2nd Int'l Conference on Zika Virus & Aedes Related Infections
- 22 Jan 2018 Old World screwworm - Singapore: (Singapore Zoo) sambar, 1st rep, OIE
- 22 Jan 2018 Hantavirus - Americas (04): Chile (LG), susp.
- 22 Jan 2018 Rabies (07): Americas (Costa Rica) bovine
- 22 Jan 2018 Plague - Madagascar: (AV) bubonic
- 21 Jan 2018 Bovine tuberculosis - Ireland: (KY) spread, control
- 21 Jan 2018 Bacterial leaf streak, maize - USA: reservoir hosts
- 21 Jan 2018 Influenza, canine - USA (02): (CA) H3N2
- 21 Jan 2018 Carbon dioxide poisoning - USA: (IL)
- 21 Jan 2018 Anthrax - Kenya: (NR) bovine, human
- 21 Jan 2018 Equine herpesvirus - North America (02): USA (PA, VA) equine
- 21 Jan 2018 Scabies - Spain: (CT)
- 21 Jan 2018 Guinea worm: Chad, Ethiopia, increase
- 21 Jan 2018 Influenza (05): seasonal, multiple locations
- 21 Jan 2018 Scrub typhus - Thailand (02): comment
- 21 Jan 2018 Salmonellosis, st Montevideo - USA: restaurant chain, sprouts
- 20 Jan 2018 Monkeypox - Africa: Nigeria
- 20 Jan 2018 Hantavirus - Americas (03): Chile (LI)
- 20 Jan 2018 Marine turtle toxin - Madagascar: fatalities, children
- 20 Jan 2018 Mycoplasma bovine, bovine - New Zealand (02)
- 20 Jan 2018 Equine infectious anemia - France (02): (PR) spread
- 19 Jan 2018 Scrub typhus - Thailand
- 19 Jan 2018 Rift Valley fever - South Sudan: (EB) WHO, susp, RFI
- 19 Jan 2018 Malaria - Yemen
- 19 Jan 2018 Avian influenza, human (02): Iraq, H5N8 susp, RFI
- 19 Jan 2018 Foot & mouth disease - Zambia: (NW) bovine, not typed, OIE
- 19 Jan 2018 Canine distemper - Russia: (PR) wild leopard, 2015
- 19 Jan 2018 Kyasanur Forest disease - India (03): (KA) new cases
- 18 Jan 2018 Undiagnosed diseases, tomato & okra - Ghana: (UE)
- 18 Jan 2018 Poliomyelitis update (03): global (Afghanistan, Pakistan, Congo DR), violence
- 18 Jan 2018 Typhoid fever - Zimbabwe: (HA)
- 18 Jan 2018 Meningitis, meningococcal - USA: (OR) middle school student
- 18 Jan 2018 Glanders, equine - India: (UP), spread
- 18 Jan 2018 Cholera, diarrhea & dysentery update (03): Asia (Yemen), WHO
- 18 Jan 2018 Measles update (05): Europe, Pacific-Asia, USA
- 18 Jan 2018 Obituary: Jeffrey P. Davis
- 17 Jan 2018 Hepatitis E - Namibia (02): (KH) fatal
- 17 Jan 2018 Yellow fever - Americas (04): PAHO/WHO Brazil
- 17 Jan 2018 Grapevine viruses: USA, Pakistan
- 17 Jan 2018 Listeriosis - South Africa (02): fatal, increasing incidence, ST6
- 17 Jan 2018 Avian influenza (16): Cambodia (PP) poultry, HPAI H5N1, OIE
- 17 Jan 2018 Red tide - Chile: (LG, AI)
- 17 Jan 2018 Buruli ulcer - Australia: (VI) changing epidemiology
- 17 Jan 2018 Corynebacterium ulcerans - Japan: (FO) fatal, disseminated, susp. zoonotic, 2016, RFI
- 17 Jan 2018 Salmonellosis, st I 4,[5],12:b:- and Newport - USA: frozen coconut, alert, recall
- 17 Jan 2018 Crimean-Congo hem. fever - East Africa (02): S Sudan (EL) susp, Uganda (NK) RFI
- 17 Jan 2018 Yellow fever - Americas (03): Brazil (SP)
- 17 Jan 2018 Avian influenza (15): India (KA) HPAI H5N8, poultry, OIE
- 16 Jan 2018 MERS-CoV (04): Saudi Arabia (RI) genomic evidence of camel role in transmission
- 16 Jan 2018 Zika virus (02): Americas, Europe, research, observations
- 16 Jan 2018 Japanese encephalitis - China: (HK) blood transfusion, 1st rep
- 16 Jan 2018 Tick bite - Nepal: (Kathmandu)
- 16 Jan 2018 Rabies (06): Americas (USA) human, bat, canine exposure
- 15 Jan 2018 Yellow fever - Netherlands: ex Brazil (SP)
- 15 Jan 2018 Lassa fever - West Africa: Nigeria
- 15 Jan 2018 Measles update (04): Europe, USA
- 15 Jan 2018 Avian influenza (14): South Africa, HPAI H5N8, tern
- 15 Jan 2018 Influenza, canine - Canada (02): H3N2, more canine cases
- 15 Jan 2018 Norovirus - USA: (WA) restaurant
- 15 Jan 2018 Hepatitis A - USA (04): (MI,KY)
- 15 Jan 2018 Salmonellosis, st. Agona - France (02): infant formula, more cases, add. recall
- 15 Jan 2018 Schmallenberg virus - Europe (02): Ireland (CN,LM,SO) bovine
- 14 Jan 2018 Leptospirosis - USA: (CA) canine
- 14 Jan 2018 Foodborne illness - Madagascar: (AS) sea turtle meat, fatal
- 14 Jan 2018 Avian influenza (13): Japan (KG) poultry, HPAI H5N6, OIE
- 14 Jan 2018 West Nile virus: neuropathogenesis
- 14 Jan 2018 Hantavirus - Americas (02): Argentina (ER) susp., RFI
- 14 Jan 2018 Angiostrongylus cantonensis - USA: (HI) task force
- 14 Jan 2018 Influenza, canine - USA: (WA) H3N2
- 14 Jan 2018 Mycoplasma bovis, bovine - New Zealand: national testing
- 13 Jan 2018 Bovine tuberculosis - Israel (02): (HD) bovine, human, control
- 13 Jan 2018 Poliomyelitis update (02): (Pakistan, Afghanistan, Congo DR)
- 13 Jan 2018 Trypanosomiasis (Chagas disease) - Brazil: Amazonas
- 13 Jan 2018 Avian influenza (12): Iraq (BB) HPAI H5N8, poultry, spread
- 13 Jan 2018 Fascioliasis - Somalia: (SD) caprine
- 13 Jan 2018 Influenza (04): WHO global update, multiple locations, preparedness
- 13 Jan 2018 Undiagnosed illness - Viet Nam: (QG) fatal, palmoplantar hyperkeratosis, resurg.
- 13 Jan 2018 Peste des petits ruminants - Burundi: (GI) ovine, caprine, OIE
- 12 Jan 2018 West Nile virus - Europe: France, equine, human, OIE
- 12 Jan 2018 African swine fever - Europe (02): Romania domestic, Latvia wild boar, OIE
- 12 Jan 2018 MERS-CoV (03): Saudi Arabia, new cases, research
- 12 Jan 2018 Measles update (03): Europe, Pacific, USA
- 12 Jan 2018 Dolphin morbilivirus, fatal - Brazil: (RJ)
- 12 Jan 2018 Rabies (05): Americas (USA) fox, susp., human exposure
- 12 Jan 2018 Avian influenza (11): S.Korea (CN) HPAI H5N6, poultry, spread, vaccine discussed
- 12 Jan 2018 Bovine tuberculosis - Israel: (HD) bovine, OIE
- 12 Jan 2018 Yellow fever - Americas (02): Brazil vaccination
- 12 Jan 2018 Foot & mouth disease - China (GZ): st O & A, livestock, OIE
- 12 Jan 2018 Trypanosomiasis - South Africa: ex Zambia (S Luangwa Natl Park)
- 11 Jan 2018 Rabies (04): Americas (USA, Brazil) bat, human, Milwaukee protocol
- 11 Jan 2018 Chronic wasting disease, cervid - USA (02): (TX) white tail
- 11 Jan 2018 Equine herpesvirus - North America: USA (NY) equine
- 11 Jan 2018 Cryptosporidiosis - Ireland: (LK)
- 11 Jan 2018 Hepatitis A - USA (03): (UT)
- 11 Jan 2018 Botulism - Canada: trout caviar, risk, expanded recall
- 11 Jan 2018 Sea star wasting syndrome - North America: (Pacific coast) update
- 11 Jan 2018 Influenza (03): Asia (Pakistan, Nepal)
- 11 Jan 2018 Brucellosis - Paraguay (02): (AS) veterinary school
- 11 Jan 2018 Kyasanur Forest disease - India (02): (GA)
- 11 Jan 2018 Undiagnosed die-off, kangaroo - Australia: (NS)
- 11 Jan 2018 New in IJID (01): January 2018
- 11 Jan 2018 Avian influenza (10): UK (England) wild bird, HPAI H5N6, OIE
- 10 Jan 2018 Chronic wasting disease, cervid - USA (01): (MO)
- 10 Jan 2018 E. coli EHEC - USA: O157, leafy greens
- 10 Jan 2018 Japanese encephalitis & other - India: (KA, UP)
- 10 Jan 2018 Rabies (03): Asia (Israel) wild, domestic, OIE
- 10 Jan 2018 Late blight, potato - Bangladesh: (RP)
- 10 Jan 2018 Hepatitis A - Brazil (03): (RJ)
- 10 Jan 2018 Scrapie, sheep - Iceland: (NV) OIE
- 10 Jan 2018 Salmonellosis - USA : frozen coconut, alert, recall
- 10 Jan 2018 Scabies - Liberia: susp., RFI
- 10 Jan 2018 Trichinellosis - Viet Nam: (LI)
- 10 Jan 2018 Hepatitis A - Brazil (02): (RJ)
- 10 Jan 2018 Die-off, flying fox - Australia: (NS) heat susp.
- 09 Jan 2018 Salmonellosis - Chile: (BI): mayonnaise
- 09 Jan 2018 Rabies (02): Asia (Israel) wild, domestic, spread, control measures
- 09 Jan 2018 Avian influenza (09): South Korea (CN) HPAI H5N6, poultry, spread
- 09 Jan 2018 Hepatitis A - Brazil: (RJ) RFI
- 09 Jan 2018 Yellow fever - Americas: Brazil (SP)
- 09 Jan 2018 Hepatitis A - EU: MSM, ECDC report
- 09 Jan 2018 MERS-CoV (02): Saudi Arabia
- 09 Jan 2018 Botulism, avian - USA: (Lake Michigan) waterfowl, ecology, 2010-2013
- 09 Jan 2018 Measles update (02): Europe, South America
- 09 Jan 2018 Undiagnosed illness - Kenya: (MM) o'nyong'nyong susp, RFI
- 09 Jan 2018 Avian influenza (08): Germany (BY) wild bird, HPAI H5N6, OIE, RFI
- 09 Jan 2018 Influenza, canine - Canada: ex Asia, H3N2, 1st rep
- 09 Jan 2018 Avian influenza, human (01): China (FJ) H5N6
- 09 Jan 2018 Undiagnosed hemorrhagic illness - South Sudan: (EL) fatal
Published Date: 2018-02-08 20:17:05
Subject: PRO/PL> Asian greening, citrus - China
Archive Number: 20180208.5616524
Subject: PRO/PL> Asian greening, citrus - China
Archive Number: 20180208.5616524
ASIAN GREENING, CITRUS - CHINA
******************************
A ProMED-mail post
http://www.promedmail.org
ProMED-mail is a program of the
International Society for Infectious Diseases
http://www.isid.org
[1]
Date: Mon 5 Feb 2018
Source: Fresh Plaza [edited]
http://www.freshplaza.com/article/189031/Citrus-greening-disease-causes-drop-of-70-procent-80-procent-for-Gannan-Navel-orange
Citrus greening disease caused a drop of 70-80 per cent for Gannan [Gansu Province] navel oranges. Since 2012, these areas have suffered from a widespread outbreak of citrus greening disease.
China's major [citrus] production area has already moved north. The main advantage is that the weather is relatively cold, which limits the spread of citrus greening disease. Farmers have gradually deepened their understanding of this disease. They are able to adopt effective management.
The overall production volume is relatively stable. Government departments continuously implement severe measures to restore production areas that have suffered greatly from citrus greening disease.
--
Communicated by:
ProMED-mail
<promed@promedmail.org>
******
[2]
Date: Tue 6 Feb 2018
Source: Xinhuanet [edited]
http://www.xinhuanet.com/english/2018-02/06/c_136953925.htm
Across China, farmers fight against [a] global "citrus killer". Blood orange growers in Lianjiang [Fujian province] have long ditched chemical fertilizers to help their groves survive "the yellow dragon," a deadly disease threatening citrus groves. In China, the disease, also known as Huanglongbing, wreaks havoc in more than 10 citrus-growing regions.
In 1993, a yellow dragon outbreak nearly exterminated blood orange groves in Lianjiang, leaving only hundreds of hectares alive. Growers spent more than 10 years recovering their groves to a total of 5000 hectares, but another epidemic in 2007 destroyed them again.
The government started subsidizing bacteria-free saplings produced by a breeding center since 2010, because no one knew whether saplings then traded in the market, all grown by farmers themselves, were clean or not. Around 80 per cent of the cost of a bacteria-free sapling is covered by the government. A farmer only needs to pay half the price of a traditional sapling. The measures [also] include use of organic fertilizers, equipment that captures psyllids, early detection and handling of sick trees.
--
Communicated by:
ProMED-mail
<promed@promedmail.org>
[Greening is one of the most damaging diseases of citrus crops affecting leaves and fruit. It is caused by fastidious phloem-inhabiting bacteria classified as _Candidatus_ Liberibacter asiaticus (Asian greening; huanglongbing, HLB), africanus (including a subsp. capensis; African greening) or americanus (South American greening). The 3 pathogens can only be distinguished by molecular methods.
Symptoms include blotchy mottling and yellowing of leaves and small, irregularly shaped fruits with a thick, pale peel and bad taste. Early symptoms may be confused with nutrient deficiencies. Affected trees become stunted, bear multiple off-season flowers and may live for only a few years without ever bearing usable fruit.
The diseases are restricted to _Citrus_ and close relatives because of the narrow host range of their psyllid vectors. _Ca._ L. asiaticus and americanus are spread by the Asian citrus psyllid (_Diaphorina citri_). The main vector for _Ca._ L. africanus is the African citrus psyllid _Trioza erytreae_. The pathogens can also be spread by grafting and possibly by seed from infected plants or transovarially in the vectors. Both, pathogens and vectors, can be spread with plant material.
Disease management requires an integrated approach including use of clean planting and grafting stock, elimination of inoculum, use of pesticides for vector control in orchards, and biological control of vectors in non-crop reservoirs. Control using cultural methods, such as interplanting with non-host crops, is being trialled. In areas where a pathogen has not yet been detected, biological control of vectors has been used successfully to reduce insect numbers and, therefore, the risk of greening outbreaks (for example, see ProMED-mail post 20090601.2034).
Maps
China:
http://www.beijing-travels.com/image/chinamap.jpg
China provinces:
http://www.chinadiscovery.com/assets/images/customer-support/maps/china-provinces-map-600.jpg
Pictures
Asian greening (HLB) symptoms, leaves and branches:
http://www.delhidailynews.com/news_image/1402146122citrus-greening.jpg,
http://www.news.dm/wp-content/uploads/2012/10/citrus-greening.jpg and
http://www.citrusalert.com/wp-content/uploads/2012/10/GreenIslandsOfColor.jpg
Asian greening, fruit symptoms:
https://geneticliteracyproject.org/wp-content/uploads/2016/10/citrus_greening.jpg,
https://maxpull-tlu7l6lqiu.stackpathdns.com/wp-content/uploads/2013/07/citrus-greening-400x300.jpg and
http://www.abc.net.au/reslib/200904/r362894_1677317.jpg
Asian and African greening, symptoms and vector photo galleries:
https://gd.eppo.int/taxon/LIBEAF/photos and
http://www.invasive.org/browse/subinfo.cfm?sub=4695
_D. citri_:
https://entomologytoday.files.wordpress.com/2016/02/diaphorina-citri-5006083-smpt-2.jpg?w=410
Links
Citrus greening information:
http://cisr.ucr.edu/citrus_greening.html,
https://www.daf.qld.gov.au/plants/health-pests-diseases/a-z-significant/citrus-greening-huanglongbing,
http://www.bioone.org/perlserv/?request=get-document&issn=0015-4040&volume=087&issue=03&page=330 and
http://ecoport.org/ep?SearchType=slideshowViewSlide&slideshowId=197
Asian greening, information and distribution:
http://www.cabi.org/isc/datasheet/16565
African greening, information and distribution:
http://www.cabi.org/isc/datasheet/16564
Taxonomy of Liberibacter species via:
http://www.uniprot.org/taxonomy/34019
Taxonomy and information for psyllid vectors (with pictures) via:
http://www.psyllids.org/index.htm and
http://www.psyllids.org/psyllidsMorphology.htm
- Mod.DHA]
******************************
A ProMED-mail post
http://www.promedmail.org
ProMED-mail is a program of the
International Society for Infectious Diseases
http://www.isid.org
[1]
Date: Mon 5 Feb 2018
Source: Fresh Plaza [edited]
http://www.freshplaza.com/article/189031/Citrus-greening-disease-causes-drop-of-70-procent-80-procent-for-Gannan-Navel-orange
Citrus greening disease caused a drop of 70-80 per cent for Gannan [Gansu Province] navel oranges. Since 2012, these areas have suffered from a widespread outbreak of citrus greening disease.
China's major [citrus] production area has already moved north. The main advantage is that the weather is relatively cold, which limits the spread of citrus greening disease. Farmers have gradually deepened their understanding of this disease. They are able to adopt effective management.
The overall production volume is relatively stable. Government departments continuously implement severe measures to restore production areas that have suffered greatly from citrus greening disease.
--
Communicated by:
ProMED-mail
<promed@promedmail.org>
******
[2]
Date: Tue 6 Feb 2018
Source: Xinhuanet [edited]
http://www.xinhuanet.com/english/2018-02/06/c_136953925.htm
Across China, farmers fight against [a] global "citrus killer". Blood orange growers in Lianjiang [Fujian province] have long ditched chemical fertilizers to help their groves survive "the yellow dragon," a deadly disease threatening citrus groves. In China, the disease, also known as Huanglongbing, wreaks havoc in more than 10 citrus-growing regions.
In 1993, a yellow dragon outbreak nearly exterminated blood orange groves in Lianjiang, leaving only hundreds of hectares alive. Growers spent more than 10 years recovering their groves to a total of 5000 hectares, but another epidemic in 2007 destroyed them again.
The government started subsidizing bacteria-free saplings produced by a breeding center since 2010, because no one knew whether saplings then traded in the market, all grown by farmers themselves, were clean or not. Around 80 per cent of the cost of a bacteria-free sapling is covered by the government. A farmer only needs to pay half the price of a traditional sapling. The measures [also] include use of organic fertilizers, equipment that captures psyllids, early detection and handling of sick trees.
--
Communicated by:
ProMED-mail
<promed@promedmail.org>
[Greening is one of the most damaging diseases of citrus crops affecting leaves and fruit. It is caused by fastidious phloem-inhabiting bacteria classified as _Candidatus_ Liberibacter asiaticus (Asian greening; huanglongbing, HLB), africanus (including a subsp. capensis; African greening) or americanus (South American greening). The 3 pathogens can only be distinguished by molecular methods.
Symptoms include blotchy mottling and yellowing of leaves and small, irregularly shaped fruits with a thick, pale peel and bad taste. Early symptoms may be confused with nutrient deficiencies. Affected trees become stunted, bear multiple off-season flowers and may live for only a few years without ever bearing usable fruit.
The diseases are restricted to _Citrus_ and close relatives because of the narrow host range of their psyllid vectors. _Ca._ L. asiaticus and americanus are spread by the Asian citrus psyllid (_Diaphorina citri_). The main vector for _Ca._ L. africanus is the African citrus psyllid _Trioza erytreae_. The pathogens can also be spread by grafting and possibly by seed from infected plants or transovarially in the vectors. Both, pathogens and vectors, can be spread with plant material.
Disease management requires an integrated approach including use of clean planting and grafting stock, elimination of inoculum, use of pesticides for vector control in orchards, and biological control of vectors in non-crop reservoirs. Control using cultural methods, such as interplanting with non-host crops, is being trialled. In areas where a pathogen has not yet been detected, biological control of vectors has been used successfully to reduce insect numbers and, therefore, the risk of greening outbreaks (for example, see ProMED-mail post 20090601.2034).
Maps
China:
http://www.beijing-travels.com/image/chinamap.jpg
China provinces:
http://www.chinadiscovery.com/assets/images/customer-support/maps/china-provinces-map-600.jpg
Pictures
Asian greening (HLB) symptoms, leaves and branches:
http://www.delhidailynews.com/news_image/1402146122citrus-greening.jpg,
http://www.news.dm/wp-content/uploads/2012/10/citrus-greening.jpg and
http://www.citrusalert.com/wp-content/uploads/2012/10/GreenIslandsOfColor.jpg
Asian greening, fruit symptoms:
https://geneticliteracyproject.org/wp-content/uploads/2016/10/citrus_greening.jpg,
https://maxpull-tlu7l6lqiu.stackpathdns.com/wp-content/uploads/2013/07/citrus-greening-400x300.jpg and
http://www.abc.net.au/reslib/200904/r362894_1677317.jpg
Asian and African greening, symptoms and vector photo galleries:
https://gd.eppo.int/taxon/LIBEAF/photos and
http://www.invasive.org/browse/subinfo.cfm?sub=4695
_D. citri_:
https://entomologytoday.files.wordpress.com/2016/02/diaphorina-citri-5006083-smpt-2.jpg?w=410
Links
Citrus greening information:
http://cisr.ucr.edu/citrus_greening.html,
https://www.daf.qld.gov.au/plants/health-pests-diseases/a-z-significant/citrus-greening-huanglongbing,
http://www.bioone.org/perlserv/?request=get-document&issn=0015-4040&volume=087&issue=03&page=330 and
http://ecoport.org/ep?SearchType=slideshowViewSlide&slideshowId=197
Asian greening, information and distribution:
http://www.cabi.org/isc/datasheet/16565
African greening, information and distribution:
http://www.cabi.org/isc/datasheet/16564
Taxonomy of Liberibacter species via:
http://www.uniprot.org/taxonomy/34019
Taxonomy and information for psyllid vectors (with pictures) via:
http://www.psyllids.org/index.htm and
http://www.psyllids.org/psyllidsMorphology.htm
- Mod.DHA]
See Also
2017----
Asian greening, citrus - Panama: 1st rep (BC) 20170707.5157200
Asian greening, citrus - Trinidad & Tobago: 1st rep 20170614.5104395
Asian greening, citrus - Mexico: (OA) 20170502.5007425
Asian greening, citrus - China: (southern) 20170120.4778384
2016
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Asian greening, citrus - Nepal: (KS) 20161129.4660906
Asian greening, citrus - Tanzania: susp 20160912.4481387
Huanglongbing, citrus - Colombia: (LG) 20160209.4005503
2015
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Huanglongbing, citrus - Portugal: (AL) susp. 20151116.3796582
Huanglongbing, citrus - India: survey 20150409.3285806
Huanglongbing vector, citrus - Europe: 1st rep, Spain (GA) 20150213.3163555
2013
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Huanglongbing, citrus - Paraguay 20130724.1842707
2012
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Huanglongbing, citrus - Brazil: (SP) update 20121114.1408468
Huanglongbing, citrus - Argentina: 1st rep, (MN) 20120917.1296650
Huanglongbing, citrus - USA: (CA) 20120404.1089672
Huanglongbing, citrus - USA: (TX) spread 20120122.1017941
and older items in the archives
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