Harmful Intress (Planococcus Ficus) On Grapes And The Application Of The Preparation Enthomin K.E. Against Him

To understand ecological factors mediating the spread of insect-borne plant pathogens, vector species for these pathogens need to be identified. Grapevine leafroll disease is caused by a complex of phylogenetically related closteroviruses, some of which are transmitted by insect vectors; however, the specificities of these complex virus–vector interactions are poorly understood thus far. Through biological assays and phylogenetic analyses, we studied the role of vector-pathogen specificity in the transmission of several grapevine leafroll-associated viruses (GLRaVs) by their mealybug vectors. Using plants with multiple virus infections, several virus species were screened for vector transmission by the mealybug species Planococcus ficus and Pseudococcus longispinus. We report that two GLRaVs (-4 and -9), for which no vector transmission evidence was available, are mealybug-borne. The analyses performed indicated no evidence of mealybug–GLRaV specificity; for example, different vector species transmitted GLRaV-3 and one vector species, Planococcus ficus, transmitted five GLRaVs. Based on available data, there is no compelling evidence of vector–virus specificity in the mealybug transmission of GLRaVs. However, more studies aimed at increasing the number of mealybug species tested as vectors of different GLRaVs are necessary. This is especially important given the increasing importance of grapevine leafroll disease spread by mealybugs in vineyards worldwide.

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ChemInform Abstract: Identification and Synthesis of the Sex Pheromone of the Vine Mealybug, Planococcus ficus.

ChemInform ◽

10.1002/chin.200121196 ◽

2010 ◽

Vol 32 (21) ◽

pp. no-no

Author(s):

Diane M. Hinkens ◽

J. Steven McElfresh ◽

Jocelyn G. Millar

Keyword(s):

Sex Pheromone ◽

Planococcus Ficus ◽

Vine Mealybug

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A morphological and molecular characterization of vine mealybug populations (Hemiptera, Pseudococcidae) from Tunisia

Journal of Entomological and Acarological Research ◽

10.4081/jear.2012.e5 ◽

2012 ◽

Vol 44 (1) ◽

pp. 5 ◽

Cited By ~ 3

Author(s):

Ramzi Mansour ◽

Vincenzo Cavalieri ◽

Gaetana Mazzeo ◽

Kaouthar Grissa Lebdi ◽

Agatino Russo

Keyword(s):

Phylogenetic Tree ◽

Molecular Characterization ◽

Adult Female ◽

Morphological Examination ◽

Molecular Analyses ◽

Planococcus Ficus ◽

Morphological Studies ◽

Vine Mealybug ◽

Morphological And Molecular Characterization

Some vine mealybug, Planococcus ficus (Signoret) populations in Tunisian vineyards have been morphologically and genetically characterized. The morphological examination was based on the main distinctive characteristics of species of Planococcus, namely the number and distribution of the multilocular disc pores and tubular ducts on the adult female. This showed the existence of two different vine mealybug populations in Tunisia. Likewise, in the molecular analyses, two separate clades were revealed in the neighbour-joining phylogenetic tree, supporting the morphological studies and suggesting that there are two distinct populations of P. ficus on grapevine in Tunisia.

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First insights into grapevine transcriptional responses as a result of vine mealybug Planococcus ficus feeding

Arthropod-Plant Interactions ◽

10.1007/s11829-014-9340-1 ◽

2014 ◽

Cited By ~ 2

Author(s):

Alicia E. Timm ◽

Annette Reineke

Keyword(s):

Transcriptional Responses ◽

Planococcus Ficus ◽

Vine Mealybug

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One device for two pests: a new double dispenser for mating disruption of Lobesia botrana and Planococcus ficus

Entomologia Generalis ◽

10.1127/entomologia/2021/1228 ◽

2021 ◽

Author(s):

Renato Ricciardi ◽

Giovanni Benelli ◽

Pompeo Suma ◽

Francesca Cosci ◽

Filippo Di Giovanni ◽

...

Keyword(s):

Mating Disruption ◽

Lobesia Botrana ◽

Planococcus Ficus

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Identification of Planococcus ficus and Planococcus citri (Hemiptera: Pseudococcidae) by PCR-RFLP of COI gene

Zootaxa ◽

10.11646/zootaxa.1816.1.6 ◽

2008 ◽

Vol 1816 (1) ◽

pp. 65 ◽

Cited By ~ 16

Author(s):

VINCENZO CAVALIERI ◽

GAETANA MAZZEO ◽

GIOVANNA TROPEA GARZIA ◽

EMANUELE BUONOCORE ◽

AGATINO RUSSO

Keyword(s):

Host Plant ◽

Coi Gene ◽

Planococcus Citri ◽

Severe Damage ◽

Planococcus Ficus ◽

Citrus Mealybug ◽

Virus Vectors ◽

Pcr Rflp ◽

Vine Mealybug

The vine mealybug, Planococcus ficus (Signoret), and the citrus mealybug, Planococcus citri (Risso), are currently the most economically important pseudococcids in vineyards in Italy (Dalla Montà et al., 2001). Pl. ficus is also considered to be a key pest in many other countries (Ben-Dov, 1994). The two species cause severe damage to the host plant, and significantly reduce the crop due to the production of honeydew, which allows the growth of sooty molds, and to their potential as virus vectors. The vine mealybug, in particular, is known to transmit grapevine leafroll and corky-bark diseases (Engelbrecht & Kasdorf, 1990; Tanne et al., 1989).

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