Phenacoccus

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Aunu Rauf - One of the best experts on this subject based on the ideXlab platform.

  • influence of host stage on oviposition development and sex ratio of anagyrus lopezi de santis hymenoptera encyrtidae a parasitoid of the cassava mealybug Phenacoccus manihoti matile ferrero 1 hemiptera pseudococcidae
    Jurnal Hama dan Penyakit Tumbuhan Tropika, 2020
    Co-Authors: Evie Adriani, Aunu Rauf, Pudjianto Pudjianto
    Abstract:

    Influence of host stage on oviposition, development, and sex ratio of Anagyrus lopezi (De Santis) (Hymenoptera: Encyrtidae),a parasitoid of the cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae). The parasitoidAnagyrus lopezi (De Santis) (Hymenoptera: Encyrtidae) was introduced from Thailand into Indonesia in early 2014 to controlthe invasive cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae). Because of the need toproduce large numbers of high-quality females, research was conducted in the laboratory to determine host stage preferencefor A. lopezi on different instars of P. manihoti. Individual female wasps were exposed to first, second, third instar nymphs,and pre-reproductive adult mealybugs. In the no-choice test, the frequency of parasitized hosts and the number of eggs laidper host was significantly higher in second and third instar nymphs as well as adult mealybugs compared to first instarnymphs. In the two-choice test, third instars nymphs and adult mealybugs were the most preferred host for oviposition.Immature development of parasitoids was faster and the ratio of female to male parasitoids was higher following ovipositionin second and third instar nymphs and pre-reproductive adult hosts, compared to the first instar nymphs. Our findingsindicate that the use of pre-reproductive adults as hosts in a mass-rearing program would be the most productive and fastestway to produce A. lopezi populations with a female-biased sex ratio. Field release of parasitoids should be conducted whenthe host’s third instar nymph is the most abundant because the period during which preferred and suitable host stages areavailable would be the longest.

  • geographic distribution of the invasive mealybug Phenacoccus manihoti and its introduced parasitoid anagyrus lopezi in parts of indonesia
    Biodiversitas, 2019
    Co-Authors: Muhammad Zainal Fanani, Aunu Rauf, Nina Maryana, Ali Nurmansyah, Dadan Hindayana
    Abstract:

    Abstract. Fanani Z. M., Rauf A, Maryana N, Nurmansyah A, Hindayana D. 2019. Geographic distribution of the invasive mealybug Phenacoccus manihoti and its introduced parasitoid Anagyrus lopezi in parts of Indonesia. Biodiversitas 20: 3751-3757. Cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae), is an invasive pest detected for the first time in Indonesia in 2010. An exotic parasitoid Anagyrus lopezi (De Santis) (Hymenoptera: Encyrtidae) was introduced and released in 2014 to control the pest. Study was conducted with the objective to determine the geographic distribution of P. manihoti and spread of A. lopezi. Field surveys were conducted on cassava fields in various locations in Lampung, Java, and Nusa Tenggara. Our studies showed that P. manihoti was found to be widely distributed in Lampung, Banten, West Java, Central Java, East Java, West Nusa Tenggara and East Nusa Tenggara. In each location visited, symptoms of P. manihoti infestation as indicated by internode distortion and bunchy top were prominent. Three years following release, parasitoid A. lopezi has established and spread into several cassava growing areas, except East Nusa Tenggara. Parasitism rates varied from 1.50% in West Nusa Tenggara up to 59.18% in East Java. Logistic regression revealed that probability of severe damage by the cassava mealybug was significantly (P<0.05) increased with the increasing abundance of ants.

  • genetic variation among the geographic population of cassava mealybug Phenacoccus manihoti hemiptera pseudococcidae in indonesia inferred from mitochondrial coi gene sequence
    Biodiversitas, 2019
    Co-Authors: Nopriawansyah Nopriawansyah, Aunu Rauf, Ali Nurmansyah, Yayi Munara Kusumah, Yonny Koesmaryono
    Abstract:

    Abstract. Nopriawansyah N, Rauf A, Kusumah YM, Nurmansyah A, Koesmaryono Y. 2019. Genetic variation among the geographic population of Cassava mealybug Phenacoccus manihoti (Hemiptera: Pseudococcidae) in Indonesia inferred from mitochondrial COI gene sequence. Biodiversitas 20: 2685-2692. Cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae) is an invasive pest native to South America. Research was conducted with the objective to study genetic variation of cassava mealybug from different geographic areas in Indonesia. Thirty-six samples of cassava mealybugs were collected from eight different population locations. Genomic DNA was extracted from individual specimens of P. manihoti using gSYNC DNA Extraction Kit from Geneaid Lot No. FB221707. PCR amplification using primary CO1 gene showed the target position as long as 518 bp. Analysis of homology from eight populations revealed eight haplotypes in Indonesia with different variable sites. Genetic distance analysis was done by calculating base pair differences in each population. The percentage of genetic distance between populations was 0.0000% -0.00409%. The results of the analyst using the Kimura-2 parameter showed that the population was divided into 2 clusters. The highest haplotype (Hd) diversity value was 0.8333, while the lowest was zero (Hd = 0). The highest nucleotide diversity (?) was 0.00225 and the lowest was 0.000000. The genetic distance and nucleotide diversity were low because P. manihoti was thelytoky parthenogenesis.

  • kutu putih singkong Phenacoccus manihoti matile ferrero hemiptera pseudococcidae persebaran geografi di pulau jawa dan rintisan pengendalian hayati
    JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA, 2017
    Co-Authors: Budi Abduchalek, Aunu Rauf
    Abstract:

    Cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae): Geographic distribution in Java and initiation of biological control. Cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Psedococcidae), is a recently introduced pest in Indonesia. Parasitoid Anagyrus lopezi (De Santis) (Hymenoptera: Encyrtidae) was imported to control the pest. Studies were conducted to determine geographic distribution of P. manihoti throughout Java, and to evaluate the potential of the parasitoid as a biological control agent. Geographic distribution of the pest was determined through field survey, whereas evaluation of the parasitoid was studied through cage experiment and field release. Our survey revealed that the cassava mealybug has spread throughout Java. Heavy infestations caused shortened and distorted stems, complete defoliation, and stunted growth. In cages containing only mealybugs, all cassava plants (100%) died after two months. Whereas in cages containing both mealybugs and three pairs of parasitoid, rate of parasitization was 25% and plant mortality 20%. Parasitoids released in the field were able to survive, reproduce, and establish under Bogor climatic condition. These might indicate that parasitoid A. lopezi is a potential natural enemy to be used in biological control program of the cassava mealybug.

  • parameter neraca hayati dan pertumbuhan populasi kutu putih Phenacoccus manihoti matile ferrero hemiptera pseudococcidae pada dua varietas ubi kayu
    JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA, 2014
    Co-Authors: Nila Wardani, Aunu Rauf, Wayan Winasa, Sugeng Santoso
    Abstract:

    ABSTRACT The life history and population growth parameters of mealybug Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae) on two cassava varieties. The development, reproduction, and population growth parameters of the cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae) on two cassava varieties were studied in laboratory. The varieties tested were UJ-5 with high cyanide content (>100 mg per kg) dan Adira-1 with low cyanide content (27.5 mg per kg).  Our research revealed that P. manihoti performances were highly affected by cassava varieties.  Incubation period of eggs of P. manihoti were 7.93 ±  0.09 and 8.33 ± 0.11 days, nymphal development periode 12.32±0.13 and 15.67 ± 0.13 days, respectively on UJ-5 and Adira-1. Fecundity averaged 386.37 ± 5.83 on UJ-5 and 318.67±2.81 eggs on Adira-1. Intrinsic rate of increase (rm) were  0.258 ± 0.001 on UJ-5 and  0.220 ± 0.001 on Adira-1. Mean generation time (T) on UJ-5 and Adira-1 were 22.795 ± 0.050 and 25.532 ± 0.047 days, repectively. Our findings showed that variety UJ-5 was more suitable for development and population growth of the cassava mealybug.

Thibaut Malausa - One of the best experts on this subject based on the ideXlab platform.

  • Molecular and morphological identification of mealybug species (Hemiptera: Pseudococcidae) in brazilian vineyards
    PLoS ONE, 2014
    Co-Authors: Vitor C. Pacheco Da Silva, Jean-françois Germain, Marcos Botton, Aline Bertin, Aurelie Blin, Daniel Bernardi, Guylène Rignol, Thibaut Malausa
    Abstract:

    Mealybugs (Hemiptera: Pseudococcidae) are pests constraining the international trade of Brazilian table grapes. They damage grapes by transmitting viruses and toxins, causing defoliation, chlorosis, and vigor losses and favoring the development of sooty mold. Difficulties in mealybug identification remain an obstacle to the adequate management of these pests. In this study, our primary aim was to identify the principal mealybug species infesting the major table grape-producing regions in Brazil, by morphological and molecular characterization. Our secondary aim was to develop a rapid identification kit based on species-specific Polymerase Chain Reactions, to facilitate the routine identification of the most common pest species. We surveyed 40 sites infested with mealybugs and identified 17 species: Dysmicoccus brevipes (Cockerell), Dysmicoccus sylvarum Williams and Granara de Willink, Dysmicoccus texensis (Tinsley), Ferrisia cristinae Kaydan and Gullan, Ferrisia meridionalis Williams, Ferrisia terani Williams and Granara de Willink, Phenacoccus baccharidis Williams, Phenacoccus parvus Morrison, Phenacoccus solenopsis Tinsley, Planococcus citri (Risso), Pseudococcus viburni (Signoret), Pseudococcus cryptus Hempel, four taxa closely related each of to Pseudococcus viburni, Pseudococcus sociabilis Hambleton, Pseudococcus maritimus (Ehrhorn) and Pseudococcus meridionalis Prado, and one specimen from the genus Pseudococcus Westwood. The PCR method developed effectively identified five mealybug species of economic interest on grape in Brazil: D. brevipes, Pl. citri, Ps. viburni, Ph. solenopsis and Planococcus ficus (Signoret). Nevertheless, it is not possible to assure that this procedure is reliable for taxa that have not been sampled already and might be very closely related to the target species.

  • Identification of mealybug pest species (Hemiptera: Pseudococcidae) in Egypt and France, using a DNA barcoding approach
    Bulletin of Entomological Research, 2012
    Co-Authors: Shaaban Abd-rabou, Philippe Kreiter, Hisham Shalaby, Jean-françois Germain, Thibaut Malausa
    Abstract:

    Pseudococcidae (mealybugs) is a large taxonomic group, including a number of agronomic pests. Taxonomic identification of mealybug species is a recurrent problem and represents a major barrier to the establishment of adequate pest management strategies. We combined molecular analysis of three DNA markers (28S-D2, cytochrome oxidase I and internal transcribed spacer 2) with morphological examination, for the identification of 176 specimens collected from 40 mealybug populations infesting various crops and ornamental plants in Egypt and France. This combination of DNA and morphological analyses led to the identification of 17 species: seven in Egypt ( Planococcus citri (Risso), Planococcus ficus (Signoret), Maconellicoccus hirsutus (Green), Ferrisia virgata (Cockerell), Phenacoccus solenopsis Tinsley, Phenacoccus parvus Morrison and Saccharicoccus sacchari (Cockerell)) and 11 in France ( Planococcus citri, Pseudococcus viburni Signoret, Pseudococcus longispinus (Targioni-Tozzetti), Pseudococcus comstocki (Kuwana), Rhizoecus amorphophalli Betrem, Trionymus bambusae (Green), Balanococcus diminutus (Leonardi), Phenacoccus madeirensis Green, Planococcus vovae (Nasonov), Dysmicoccus brevipes (Cockerell) and Phenacoccus aceris Signoret), Pl. citri being found in both countries. We also found genetic variation between populations considered to belong to the same species, justifying further investigation of the possible occurrence of complexes of cryptic taxa.

Mehmet Bora Kaydan - One of the best experts on this subject based on the ideXlab platform.

Mehmet Rifat Ulusoy - One of the best experts on this subject based on the ideXlab platform.

Gillian W. Watson - One of the best experts on this subject based on the ideXlab platform.

  • the cassava mealybug Phenacoccus manihoti matile ferrero hemiptera coccomorpha pseudococcidae arrives in india
    Zootaxa, 2020
    Co-Authors: Sunil Joshi, Sachin G Pai, K B Deepthy, C R Ballal, Gillian W. Watson
    Abstract:

    Invasive species threaten the ecological and economic wellbeing of a country (Pimentel et al. 2001). In the last decade, several mealybugs and soft scale insects have been accidentally introduced to India, of which some have become serious pests (e.g., Phenacoccus solenopsis Tinsley, Paracoccus marginatus Williams & Granara de Willink, Phenacoccus madeirensis Green and Pseudococcus jackbeardsleyi Gimpel & Miller); others are widening their host ranges and spreading rapidly. Kilifia acuminata (Signoret) and Protopulvinaria longivalvata Green seem relatively harmless but Trijuba oculata (Brain) and Pulvinaria urbicola Cockerell cause economic damage (Joshi & Rameshkumar 2013; Joshi 2017).

  • are Phenacoccus solani ferris and p defectus ferris hemiptera pseudococcidae distinct species
    Zootaxa, 2016
    Co-Authors: Evangelia Chatzidimitriou, Gillian W. Watson, Mauro Simonato, Isabel Martinezsanudo, Hirotaka Tanaka, Jing Zhao, Giuseppina Pellizzari
    Abstract:

    Among the Nearctic species of Phenacoccus (Hemiptera: Pseudococcidae), Phenacoccus solani Ferris and P. defectus Ferris are morphologically similar and it can be difficult to separate them on the basis of microscopic morphological characters of the adult female alone. In order to resolve their identity, a canonical variates morphological analysis of 199 specimens from different geographical origins and host plants and a molecular analysis of the COI and 28S genes were performed. The morphological analysis supported synonymy of the two species, as although the type specimens of the "species" are widely separated from each other in the canonical variates plot, they are all part of a continuous range of variation. The molecular analysis showed that P. solani and P. defectus are grouped in the same clade. On the basis of the morphological and molecular analyses, P. defectus is synonymized under the senior name P. solani, syn. n.

  • New Records of Mealybugs, Scale Insects, and Whiteflies (Hemiptera: Sternorrhyncha) from Mali and Senegal
    Journal of Agricultural and Urban Entomology, 2012
    Co-Authors: R Muniappan, L. Vaughan, Robert L Gilbertson, Gillian W. Watson, M. Noussourou
    Abstract:

    Abstract This study documents new distribution records of Sternorrhyncha (Hemiptera) in Mali and Senegal. The mealybugs (Pseudococcidae) found were Ferrisia virgata Cockerell (striped mealybug), Phenacoccus manihoti Matile-Ferrero (cassava mealybug), and Phenacoccus solenopsis Tinsley (solenopsis mealybug). Also recorded was a giant mealybug, Icerya sp. (Monophlebidae), that was not identified to species. The soft scales (Coccidae) collected were Ceroplastes rusci (L.) (fig wax scale), Coccus hesperidum L. (brown soft scale), and Parasaissetia nigra (Nietner) (nigra scale). The armored scales (Diaspididae) collected were Aonidiella orientalis (Newstead) (oriental scale), Lepidosaphes tapleyi Williams (guava long scale), and Parlatoria crypta McKenzie (mango white scale). The whiteflies (Aleyrodidae) found were Aleurolobus marlatti (Quaintance) (Marlatt whitefly), Aleurotrachelus atratus Hempel (palm-infesting whitefly), and Trialeurodes ricini (Misra) (castor bean whitefly).

  • New Records of Mealybugs, Scale Insects, and Whiteflies (Hemiptera: Sternorrhyncha) from Mali and Senegal 1
    2012
    Co-Authors: R Muniappan, L. Vaughan, Gillian W. Watson, R Gilbertson, M. Noussourou
    Abstract:

    ABSTRACT This study documents new distribution records of Sternorrhyncha (Hemiptera) in Mali and Senegal. The mealybugs (Pseudococcidae) found were Ferrisia virgata Cockerell (striped mealybug), Phenacoccus manihoti Matile-Ferrero (cassava mealybug), and Phenacoccus solenopsis Tinsley (solenopsis mealybug). Also recorded was a giant mealybug, Icerya sp. (Monophlebidae), that was not identified to species. The soft scales (Coccidae) collected were Ceroplastes rusci (L.

  • new records of invasive insects hemiptera sternorrhyncha in southeast asia and west africa
    Journal of Agricultural and Urban Entomology, 2009
    Co-Authors: R Muniappan, Aunu Rauf, Dewi Sartiami, Purnama Hidayat, J V K Afun, Georg Goergen, Gillian W. Watson, Gerald R. Carner, B. Merle Shepard, A Ziaur K M Rahman
    Abstract:

    Abstract Several sap-sucking insects (Hemiptera: Sternorrhyncha) of neotropical origin have been accidentally introduced to Southeast Asia and West Africa in recent years, including the mealybugs Paracoccus marginatus Williams & Granara de Willink, Phenacoccus madeirensis Green, Phenacoccus manihoti Matile-Ferrero, Phenacoccus solenopsis Tinsley, Pseudococcus jackbeardsleyi Gimpel & Miller, and the whitefly Aleurodicus dugesii Cockerell (Aleyrodidae). This paper documents new distribution records of introduced mealybugs and some other sap-sucking hemipteran insects (Coccidae and Diaspididae) in these regions and discusses progress in the biological control of some of these pests.

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