scholarly journals Aphids associated with papaya plants in Puerto Rico and Florida.

1969 ◽  
Vol 90 (1-2) ◽  
pp. 99-107
Author(s):  
Alberto Pantoja ◽  
Jorge Peña ◽  
Wilfredo Robles ◽  
Edwin Abreu ◽  
Susan Halbert ◽  
...  

Aphids associated with papaya plants were collected from two sites in Puerto Rico (Isabela and Corozal) and three farms in Homestead, Florida. Between the two regions, Florida and Puerto Rico, twenty-one species of aphids from 12 genera were identified: Aphis sp., Aphis illinoisensis Shimer, Aphis spiraecola Patch, Aphis gossypii Glover, Aphis craccivora Koch, Aphis iddletonii (Thomas), Aphis nerii Boyer de Fonscolombe, Hyperomyzus carduellinus (Theobald), Hysteroneura setariae (Thomas), Lipaphis pseudobrassicae (Davis), Picturaphis sp., Pentalonia nigronervosa Coquerel, Schizaphis graminum (Rondani), Sarucallis kahawaluokalani (Kirkaldy), Shinjia orientalis (Mordvilko), Schizaphis rotundiventris (Signoret), Toxoptera citricida (Kilkardy), Toxoptera aurantii (Boyer de Fonscolombe), Tetraneura nigriabdominalis (Sasaki), Uroleucon ambrosiae (Thomas), and Uroleucon pseudoambrosiae (Olive). The number of species was greater in Florida (n = 14) than in Puerto Rico (n = 11). Differences among species were also found between sites in Puerto Rico, with 10 species in Corozal and six in Isabela. Only one species, A. illinoisensis, was common at all sites sampled, whereas three additional species, A. spiraecola, A. gossypii, and A. craccivora were collected in both the Corozal, Puerto Rico, and the Florida areas. The difference in species composition between Puerto Rican sites (Corozal and Isabela) and between localities (Florida and Puerto Rico) is probably associated with differences in agricultural crops or weeds present in each region.

Bragantia ◽  
2008 ◽  
Vol 67 (3) ◽  
pp. 717-721
Author(s):  
Kelly Cristina Gonçalves Rocha ◽  
Antonio Carlos Busoli ◽  
Fábio Rogério B. Veronezzi

Os afídeos são importantes pragas em citros como vetores de vírus fitopatogênicos. O objetivo do trabalho foi avaliar a diversidade de espécies de afídeos alados e a ocorrência estacional dos afídeos em um pomar de citros localizado em Taiúva, SP. Para as coletas de afídeos foram utilizadas armadilhas do tipo bandejas amarelas com água e placas adesivas amarelas. Foram realizadas quatro amostragens semanais em cada estação climática, durante o ano agrícola de 2004/2005. Foram capturados exemplares de afídeos das espécies: Aphis gossypii Glover, Aphis spiraecola Patch, Toxoptera citricida Kirkaldy e Toxoptera aurantii (Boyer de Fonscombe), Rhopalosiphum maidis (Fitch), Pentalonia nigronervosa Coquerel, Uroleucon ambrosie (Thomas) e Acyrthosiphon bidenticola Smith. As espécies A. spiraecola e T. citricida foram as mais abundantes, sendo caracterizadas como espécies comuns em todo o período avaliado. Coletaram-se mais afídeos alados no outono/2004, em relação às demais estações e maior quantidade e diversidade de espécies de afídeos foi obtida em bandejas com água.


Author(s):  
George A. Schaefers

Two apparently related, aphid-transmitted virus diseases of papaya occur in Puerto Rico. These are the more severe, Distortion Mosaic (DM) and the more mild Papaya Mosaic (PM). Thirteen species of aphids were investigated as potential vectors of one or both viruses. The species Aphis nerii B. de F., Aphis gossypii Glover, Aphis spiraecola Patch, and Myzus persicae (Sulzer) were found capable of transmitting both virus types. In terms of efficiency of transmission in the laboratory, M. persicae appeared to be the most efficient vector. In addition, the species Carolinaia cyperi Ainslie and Dactynotus ambrosiae (Thomas) were found to be efficient vectors of Distortion Mosaic virus. No transmissions occurred with Aphis craccivora Koch, Toxoptera aurantiae (B. de F.), Aphis illinoisensis Shimmer, or Rhopalosiphum maidis (Fitch) all of which have been previously reported as vectors of papaya viruses. Negative results were also obtained with Hyperomyzus lactucae (L.), Rhopalosiphum nymphaeae (L.), and Sipha flava (Forbes).


Bragantia ◽  
2003 ◽  
Vol 62 (1) ◽  
pp. 75-79 ◽  
Author(s):  
Marcos Doniseti Michelotto ◽  
Antonio Carlos Busoli

O objetivo deste trabalho foi verificar a diversidade de afídeos (Hemiptera: Aphididae) na cultura do algodoeiro (Gossypium hirsutum L.) no município de Campo Verde (MT). Os afídeos foram amostrados diretamente nas plantas e através de armadilhas tipo Moericke. As amostragens foram realizadas a cada dois dias, até 60 dias após a germinação das plantas. A espécie Aphis gossypii Glover prevaleceu nas amostragens realizadas sobre as plantas. Formas aladas, de ocorrência acidental na cultura, tais como Aphis spiraecola Patch e Rhopalosiphum padi (Linnaeus) também foram observadas. Com as armadilhas tipo Moericke foram capturados 2280 afídeos alados, pertencentes a 13 espécies: R. padi (52,6% do total), A. spiraecola (26,4%), A. gossypii (8,9%), Rhopalosiphum maidis (Fitch) (5,3%), Geopemphigus floccosus (Moreira) (3,1%), Uroleucon ambrosiae (Thomas) (1,5%), Rhopalosiphum rufiabdominalis (Sasaki) (1,3%), Myzus persicae (Sulzer) (0,4%), Sipha flava (Forbes) (0,3%), Pentalonia nigronervosa Coquerel, Tetraneura nigriabdominalis (Sasaki), Lizerius melanocallis (Quednau) e Toxoptera citricidus (Kirkaldy) (0,1% cada uma). Nas amostragens diretamente sobre as plantas foram observados ápteros e alados de A. gossypii e alados de A. spiraecola e R. padi. Nas armadilhas tipo Moericke, as principais espécies capturadas foram R. padi, A. spiraecola, A. gossypii e R. maidis.


2019 ◽  
Vol 114 (2) ◽  
pp. 221
Author(s):  
Behnam AMIRI BESHELI ◽  
Amir Hossein TOORANI ◽  
Habib ABBASIPOUR

<p>To determine selective effectiveness for specific pesticides on biological control species, we evaluated the contact toxicity of different treatments including 10 ml l<sup>-1</sup> dishwashing liquid, Dayabon 5, 6, 7, 8, 9 and 10 ml l<sup>-1</sup>, Palizin 1.5, 2.5 and 2.5 ml l<sup>-1</sup>, Palizin 1.5, 2 and 2.5­+­Citrol oil 5 ml l-1, Tondoxir 2 and 3­+­Bartar soap 1 ml l<sup>-1</sup>, Malathion 2 ml l<sup>-1</sup> and control (water) on the adult aphids of the most important citrus gardens and their predator, <em>Coccinella septempunctata </em>L. in the laboratory conditions. The results revealed that the Palizin treatment 2.5­+­Citrol oil 5 ml l<sup>-1</sup>, caused the highest rate of the mortality of the citrus green aphid, <em>Aphis spiraecola </em><a title="Edith Marion Patch" href="https://en.wikipedia.org/wiki/Edith_Marion_Patch">Patch</a>, 1914 in 36 hours. Concentrations of 7 to 10 ml l<sup>-1</sup>, Dayabon and Palizin 2.5­+­Citrol oil 5 ml l<sup>-1</sup>, as well as 3 ml<sup>-1</sup> Tondexir + Bartar soap 1 ml<sup>-1</sup> had the highest mortality of the citrus brown aphid, <em>Aphis citricidus </em>(Kirkaldy, 1907), 36 hours after treatment (100 %). In addition, the treatments of Palizin 2 ml<sup>-1</sup>­+ Citrol oil of 5 ml<sup>-1</sup>, as well as 2 ml l<sup>-1</sup> Tondexir­+­Bartar soap 1 ml l<sup>-1</sup> and concentrations of 5 ml l<sup>-1</sup> and 6 ml<sup>-1</sup> of Dayabon produced the same amount of the mortality of the citrus black aphid, <em>Toxoptera aurantii </em>(Boyer de Fonscolombe, 1841). Tondexir 3 ml l<sup>-1</sup>­+­Bartar soap 1 ml l<sup>-1</sup> in 24 hours after treatment caused the highest rate of the mortality of the cotton aphids, <em>Aphis gossypii </em>Glover, 1877 (83.88 %). Malathion treatment caused a 100 % mortality of the predator ladybird 36 hours after treatment, while the lowest amount was observed in the Dayabon at 10 ml l<sup>-1</sup> with 33.34 % mortality.</p>


Biotempo ◽  
2017 ◽  
Vol 7 ◽  
pp. 28-38
Author(s):  
Menandro S. Ortiz ◽  
Cecilia R. Escajadillo ◽  
Verónica E. Rubin de Celis

Se reportan las siguientes especies procedentes del valle de Ica: Aphis citricola Van der Goot, Aphis craccivora Koch, Aphis gossypii Glover, Toxoptera aurantii (Boyer de Fonscolombe), Toxoptera citricidus (Kirkaldy), Macrosiphum rosae (Linnaeus), Myzus persicae (Sulzer), Hyalopterus pruni (Geoffroy), Rhopalosiphum maidis (Fitch), Rhopalosiphum rufiabdominalis (Sasaki), Uroleucon (Lambersius) erigeronensis (Thomas) y Wahlgreniella nervata (Gillette).


2006 ◽  
Author(s):  
R. Varela-Flores ◽  
◽  
H. Vázquez-Rivera ◽  
F. Menacker ◽  
Y. Ahmed ◽  
...  

1955 ◽  
Vol 11 (2) ◽  
pp. 107-109
Author(s):  
John P. Broderick
Keyword(s):  

1970 ◽  
Vol 102 (10) ◽  
pp. 1268-1290 ◽  
Author(s):  
Marcos Kogan ◽  
E. F. Legner

AbstractExtensive collections of synanthropic fly parasitoids in animal excrement accumulations in the United States, Mexico, Costa Rica, Puerto Rico, Uruguay, Chile, Denmark, Israel, and South Africa yielded seven forms of a Muscidifurax complex which were totally or partially reproductively isolated. Morphological studies of female and male parasitoids coupled with biological and zoogeographical information permitted the identification of five sibling species. Muscidifurax raptor Girault and Sanders 1910 is redescribed and four additional species are described as new: M. zaraptor, from the southwestern United States; M. raptoroides from Central America and Mexico; M. uniraptor from Puerto Rico, and M. raptorellus from Uruguay and Chile. Biological notes are added to the descriptions, and it was postulated that the genus is undergoing a process of speciation with local populations slowly becoming reproductively isolated and eventually giving rise to morphologically distinguishable entities. Most evidence suggests the establishment of Muscidifurax in the New World, concomitant with or shortly following the establishment of muscoid flies in accumulated excrement. Scanning electronmicroscopy was used in the analysis of some morphological structures.


1996 ◽  
Vol 25 (1) ◽  
pp. 61-111 ◽  
Author(s):  
Richard Cameron

ABSTRACTThe Functional Compensation Hypothesis (Hochberg 1986a, b) interprets frequent expression of pronominal subjects as compensation for frequent deletion of agreement marking on finite verbs in Puerto Rican Spanish (PRS). Specifically, this applies to 2sg.túwhere variably deleted word-final -smarks agreement. If the hypothesis is correct, finite verbs with agreement deleted in speech should co-occur more frequently with pronominal subjects than finite verbs with agreement intact. Likewise, social dialects which frequently delete agreement should show higher rates of pronominal expression than social dialects which less frequently delete agreement. These auxiliary hypotheses are tested across a socially stratified sample of 62 speakers from San Juan. Functional compensation does show stylistic and social patterning in the category of Specifictú, not in that of Non-specifictú. However, Non-specifictúis the key to frequency differences between -s-deleting PRS and -s-conserving Madrid; hence the Functional Compensation Hypothesis should be discarded. (Functionalism, compensation, null subject, analogy, Spanish, Puerto Rico)


Author(s):  
Elizabeth L. Andrade ◽  
Nicole D. Barrett ◽  
Mark C. Edberg ◽  
Matthew W. Seeger ◽  
Carlos Santos-Burgoa

Abstract Objective: This study aimed to examine factors that may have contributed to community disaster resilience following Hurricane Maria in Puerto Rico. Methods: In April 2018, qualitative interviews (n = 22) were conducted with stakeholders in 7 Puerto Rican municipalities (9% of total). Transcripts were deductively and inductively coded and analyzed to identify salient topics and themes, then examined according to strategic themes from the Federal Emergency Management Association’s (FEMA) Whole Community Approach. Results: Municipal preparedness efforts were coordinated, community-based, leveraged community assets, and prioritized vulnerable populations. Strategies included (1) multi-sectoral coordination and strategic personnel allocation; (2) neighborhood leader designation as support contacts; (3) leveraging of community leader expertise and social networks to protect vulnerable residents; (4) Censuses of at-risk groups, health professionals, and first responders; and (5) outreach for risk communication and locally tailored protective measures. In the context of collapsed telecommunications, communities implemented post-disaster strategies to facilitate communication with the Puerto Rican Government, between local first responders, and to keep residents informed, including the use of: (1) police radios; (2) vehicles with loudspeakers; (3) direct interpersonal communication; and (4) solar-powered Internet radio stations. Conclusions: Adaptive capacities and actions of Puerto Rican communities exemplify the importance of local solutions in disasters. Expanded research is recommended to better understand contributors to disaster resilience.


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