Distribution and Sampling of the whiteflies Aleurothrixus floccosus, Dialeurodes citri, and Parabemisia myricae (Homoptera: Aleyrodidae) in Citrus in Spain

2002 ◽  
Vol 95 (1) ◽  
pp. 167-173 ◽  
Author(s):  
Antonia Soto ◽  
Frank Ohlenschläeger ◽  
Ferran García-marí
Keyword(s):  
Dialeurodes Citri ◽  
Parabemisia Myricae

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.

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.

Parabemisia myricae. [Distribution map].

1992 ◽  
Author(s):  
Keyword(s):  
Hong Kong ◽  
North America ◽  
Geographical Distribution ◽  
Ivory Coast ◽  
Morus Alba ◽  
Cinnamomum Camphora ◽  
Distribution Map ◽  
Parabemisia Myricae ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Parabemisia myricae (Kuwana) Homoptera: Aleyrodidae (Japanese bayberry whitefly). Attacks mulberry, Citrus, avocado, Gardenia, Cinnamomum camphora, Prunus, Salix, Morus alba and tea. Information is given on the geographical distribution in Europe, Crete, Cyprus, Greece, Italy, Sicily, Spain, Turkey, Africa, Egypt, Tunisia, Ivory Coast, Asia, Hong Kong, Israel, Japan, Malaysia, Taiwan, North America, USA, California, Florida.

Overwintering of the Japanese bayberry whitefly,parabemisia myricae, in Israel

1986 ◽  
Vol 14 (4) ◽  
pp. 281-286 ◽  
Author(s):  
E. Swirski ◽  
Y. Izhar ◽  
M. Wysoki ◽  
D. Blumberg
Keyword(s):  
Parabemisia Myricae

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.

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