Acclimatation sur la côte d'azur et en corse deSerangium parcesetosum [Col.: Coccinellidae] prédateur de l'aleurode des citrus,Dialeurodes citri [Hom.: Aleyrodidae]

Entomophaga ◽  
1988 ◽  
Vol 33 (4) ◽  
pp. 517-519 ◽  
Author(s):  
J. C. Malausa ◽  
E. Franco ◽  
P. Brun
Keyword(s):  
Dialeurodes Citri

Dialeurodes citri. [Distribution map].

1996 ◽  
Author(s):  
Keyword(s):  
South Carolina ◽  
Tamil Nadu ◽  
Uttar Pradesh ◽  
Washington Dc ◽  
Distribution Map ◽  
Dialeurodes Citri ◽  
Area North ◽  
Former Ussr ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Dialeurodes citri (Ashmead). Homoptera: Aleyrodidae (Citrus whitefly). Attacks Citrus, coffee and many ornamentals. Information is given on the geographical distribution in Europe, Corsica, France, Greece, Italy, Malta, Sardinia, Sicily, Spain, Turkey, Africa, Algeria, Asia, Afghanistan, Bangladesh, China, Beijing, Fujian, Guangdong, Hebei, Henan, Hubei, Hunan, Jiangsu, Sichuan, Shanghai, Zhejiang, Hong Kong, India, Andhra Pradesh, Assam, Bihar, Delhi, Himachal Pradesh, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Orissa, Punjab, Sikkim, Tamil Nadu, Uttar Pradesh, West Bengal, Israel, Japan, South Korea, Lebanon, Macau, Pakistan, Sri Lanka, Taiwan, Thailand, Vietnam, CIS (former USSR), Azerbaijan, Georgia, Tajiskistan, Uzbekistan, Russia, Krasnodar area, North America, USA, Alabama, California, Colorado, Florida, Georgia, Illinois, Louisiana, Mississippi, North Carolina, South Carolina, Texas, Virginia, Washington DC, Central America and Caribbean, Bahamas, Bermuda, Cuba, El Salvador, Guatemala, Mexico, Puerto Rico, South America, Argentina, Chile, Colombia, Guyana, Peru.

scholarly journals The Whitefly Dialeurodes citri: A New Pest on Citrus in Tunisia?

2021 ◽  
Vol 16 (1) ◽  
pp. 11-18
Author(s):  
Synda Boulahia-Kheder ◽  
Keyword(s):  
Common Species ◽  
Biological Traits ◽  
Severe Damage ◽  
Control Programs ◽  
North East ◽  
Dialeurodes Citri ◽  
Citrus Orchards ◽  
Parabemisia Myricae ◽  
Very High ◽  
New Pest

Whiteflies invaded citrus orchards in Tunisia in the 90’s. Two species: Aleurothixus floccosus and Parabemisia myricae have been recorded successively infesting citrus and causing severe damage in Cap-Bon (North-East of Tunisia). These pests were first controlled by several insecticidal applications but with a relative efficiency. Then two biological control programs have been deployed completing the action of native natural enemies especially for P. myricae. The result was a very satisfactory control of both whitefly species, to a point that they almost disappeared from orchards for about 30 years. In 2017, a third whitefly species, identified as Dialeurodes citri, was observed during a prospection in citrus orchards in Takelsa region (Cap-Bon). It was a common species in Algeria, but never caused damage in Tunisia. In 2020, D. citri was found again with very high population densities in the regions of Menzel Bou Zelfa (Cap-Bon) and Tunis. These observations confirmed its change of status and spread in Tunisia. The main morphological and biological traits to distinguish between D. citri and the other two whitefly species, already recorded in Tunisia, were described and first observations on its infestation were reported. Some recommendations to manage this new pest are given.

The Titer of Citrus Yellow Vein Clearing Virus is Positively Associated with the Severity of Symptoms in Infected Citrus Seedlings

Plant Disease ◽  
2021 ◽  
Author(s):  
Yu Bin ◽  
Jianjian Xu ◽  
Zhimin Ma ◽  
Yu Duan ◽  
Qi Zhang ◽  
...  
Keyword(s):  
Biological Properties ◽  
Yellow Vein ◽  
Citrus Limon ◽  
Cdna Clones ◽  
Symptom Development ◽  
Vein Clearing ◽  
Reverse Transcription Pcr ◽  
The Family ◽  
Citrus Production ◽  
Dialeurodes Citri

Citrus yellow vein clearing virus is a new member of the genus Mandarivirus in the family Alphaflexiviridae. Citrus yellow vein clearing virus (CYVCV) is the causal agent of citrus yellow vein clearing disease and is widely distributed in Pakistan, India, Turkey, and China. CYVCV is transmitted from citrus to citrus by Dialeurodes citri, grafting, and contaminated knife blades, threatening citrus production. In this study, four infectious full-length cDNA clones of CYVCV (namely AY112, AY132, AY212, and AY221) derived from CYVCV isolate AY were obtained through yeast homologous recombination and inoculated to ‘Eureka’ lemon (Citrus limon Burm. f.) by Agrobacterium-mediated vacuum infiltration. Pathogenicity analysis indicated that the clones AY212 and AY221 caused more severe symptoms than AY112 and AY132. Northern blot and quantitative reverse transcription PCR (qRT-PCR) analyses showed that the titers of virulent clones (AY212 and AY221) were significantly higher than those of attenuated clones (AY112 and AY132) in the infected ‘Eureka’ lemon (Citrus limon Burm. f.) seedlings. Subsequent comparative studies of viral infectivity, accumulation, and symptoms induced by AY221 in nine citrus cultivars indicated that (i) the infectivity of AY221 varied from 25% to 100% among different cultivars; (ii) ‘Oota’ ponkan (C. reticulata L.) showed the lowest infection rate with mild symptoms, which might be a useful resource for CYVCY-resistance genes; (iii) CYVCV titer was positively associated with the symptom development in infected citrus seedlings. In general, this report revealed the biological properties of CYVCV, thus laying a foundation for further investigation of pathogenic mechanisms in this virus.

Expression of exogenous dsRNA by Lecanicillium attenuatum enhances its virulence to Dialeurodes citri

2018 ◽  
Vol 75 (4) ◽  
pp. 1014-1023
Author(s):  
Shi-Jiang Yu ◽  
Qi Pan ◽  
Ren Luo ◽  
Cui-Lun Wang ◽  
Lu-Yan Cheng ◽  
...  
Keyword(s):  
Dialeurodes Citri

scholarly journals Identification of Dialeurodes citri as a Vector of Citrus yellow vein clearing virus in China

Plant Disease ◽  
2019 ◽  
Vol 103 (1) ◽  
pp. 65-68 ◽  
Author(s):  
Y. H. Zhang ◽  
C. H. Liu ◽  
Q. Wang ◽  
Y. L. Wang ◽  
C. Y. Zhou ◽  
...  
Keyword(s):  
Viral Disease ◽  
Yellow Vein ◽  
Sour Orange ◽  
Rt Pcr ◽  
Panonychus Citri ◽  
Vein Clearing ◽  
Access Period ◽  
Inoculation Access Period ◽  
Dialeurodes Citri ◽  
The Mean

In 2009, a new citrus viral disease caused by Citrus yellow vein clearing virus (CYVCV) was first discovered in China and now CYVCV is widely distributed in the field. CYVCV is transmissible by grafting and is spread by aphids from lemon to bean, and from bean to bean. However, until now, no vector has been shown to transmit CYVCV from citrus to citrus. In this study, after a 24-h acquisition access period (AAP), CYVCV was tested for in Dialeurodes citri (Ashmead), Panonychus citri McGregor, and Aphis citricidus (Kirkaldy) by quantitative RT-PCR. After an AAP of 48 h, groups of adults of D. citri, P. citri, and A. citricidus were given a 48 h inoculation access period on cultivar Daidai sour orange seedlings. Three, 6, and 12 months post-transmission by D. citri, CYVCV was detected in the receptor plants, and the mean incidence of infected trees was 31.9, 39.1, and 39.1%, respectively. CYVCV was not transmitted to citrus by P. citri or A. citricidus. This is the first report of the ability of D. citri to transmit CYVCV from infected to healthy citrus under laboratory conditions.

scholarly journals Citrus Whitefly, Dialeurodes citri (Ashmead) (Insecta: Hemiptera: Aleyrodidae)

EDIS ◽  
1969 ◽  
Vol 2002 (4) ◽  
Author(s):  
Thomas R. Fasulo ◽  
H. V. Weems
Keyword(s):  
Cooperative Extension ◽  
Cooperative Extension Service ◽  
Extension Service ◽  
University Of Florida ◽  
Agricultural Sciences ◽  
Dialeurodes Citri

This document is EENY-084 (originally published as DPI Entomology Circular No. 128), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: June 1999. Revised: November 2002. https://edis.ifas.ufl.edu/in241

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