scholarly journals Specialized Host Utilization of Macrosiphum euphorbiae on a Nonnative Weed Host, Solanum sarrachoides, and Competition With Myzus persicae

2011 ◽  
Vol 40 (2) ◽  
pp. 350-356 ◽  
Author(s):  
Rajagopalbabu Srinivasan ◽  
Juan M. Alvarez
Keyword(s):  
Myzus Persicae ◽  
Macrosiphum Euphorbiae ◽  
Weed Host ◽  
Solanum Sarrachoides ◽  
Host Utilization

scholarly journals AFIDOS (HOMOPTERA:APHIDAE) DEL VALLE DE CAÑETE (LIMA - PERU)

Biotempo ◽  
2018 ◽  
Vol 2 ◽  
pp. 107-113
Author(s):  
Menandro S. Ortiz ◽  
Carmen L. León
Keyword(s):  
Myzus Persicae ◽  
Brevicoryne Brassicae ◽  
Macrosiphum Euphorbiae ◽  
Toxoptera Aurantii ◽  
Tuberolachnus Salignus

Se han identificado las siguientes especies procedentes del valle de cañete : Aphis citicola, A.craccivora, A. fabae, A.gossypii, Brevicoryne,brassicae, Lypaphis erysimi Macrosiphum euphorbiae, M. rosae, Myzus persicae, Riopalosiphum maidis, R. padi, toxoptera aurantii, T. citricidus y tuberolachnus salignus Todos los áfidos identificados representan especies de importancia económica, excepto el último.

scholarly journals Resistência de genótipos de batata, Solanum spp., a afídeos (Homoptera: Aphididae) e influência sobre parasitóides

1999 ◽  
Vol 28 (4) ◽  
pp. 721-728 ◽  
Author(s):  
Fernando M. Lara ◽  
Edimar A. da Silva ◽  
Arlindo L. Boiça Junior
Keyword(s):  
Myzus Persicae ◽  
Aphis Gossypii ◽  
Macrosiphum Euphorbiae ◽  
Aphidius Ervi ◽  
Aphis Gossypii Glover ◽  
Solanum Spp

Avaliou-se a resistência de genótipos de batata aos afídeos Myzus persicae (Sulz.), Macrosiphum euphorbiae (Thomas) e Aphis gossypii (Glover), e a influência desses genótipos sobre parasitóides, em dois ensaios em plantios de inverno (1996 e 1997), em condições de campo, em Jaboticabal, SP. Os genótipos plantados no primeiro ano foram: Achat, Baronesa, Bintje, BR-2, Contenda, Monalisa, N 140-201 e NYL 235-4, distribuídos em quatro blocos ao acaso. Dois levantamentos foram efetuados, aos 70 e 85 dias após o plantio, avaliando-se o número de pulgões/folha e pulgões parasitados, nos terços superior, médio e inferior da planta. Em 1997 plantaram-se os mesmos genótipos, excetuando-se o N 140-201, com levantamentos aos 72 e 80 dias. O genótipo NYL 235-4 mostrou-se suscetível a M. euphorbiae, sob infestações médias de 2,90 (1996) e 1,19 pulgões/folha (1997); dentre as cultivares comerciais, Baronesa foi a menos atacada por M. persicae (0,12 e 0,10 pulgões/folha em 1996 e 1997), enquanto BR-2 foi bem suscetível (1,10 e 0,66 pulgões/folha). Os afídeos ocorreram em maior população nas partes média e inferior das plantas; maior número de pulgões mumificados por Aphidius ervi Hal. e Diaretiella rapae (McIntosh), com parasitismo variando de 15 a 36%, foi observado em NYL 235-4, que foi o genótipo mais infestado pelos afídeos.

Comparison of Foliar and Soil-Drench Applications of Aqueous Rubidium Chloride Solutions to Plants for Marking Feeding Aphids (Homoptera: Aphidae)

1993 ◽  
Vol 28 (4) ◽  
pp. 370-375 ◽  
Author(s):  
L. P. Guillebeau ◽  
J. N. All ◽  
F. W. Nutter ◽  
C. Kuhn
Keyword(s):  
Aqueous Solutions ◽  
Myzus Persicae ◽  
Foliar Application ◽  
Green Peach Aphid ◽  
Physiological Effect ◽  
Macrosiphum Euphorbiae ◽  
Rubidium Chloride ◽  
Potato Aphid ◽  
Soil Drench ◽  
Foliar Treatment

Aqueous solutions of rubidium chloride, RbCl, (10 g/1, 10,000 ppm) were applied to foliage or soil of potted bell pepper and tomato. After 48 h, green peach aphid (Myzus persicae Sulzer) and potato aphid (Macrosiphum euphorbiae Thomas) were transferred to pepper and tomato, respectively. Leaf and aphid samples were collected after 6 d; remaining aphids were transferred to untreated plants. Aphid samples were collected periodically for 5 to 7 d. All samples were analyzed for Rb content. Results were similar for the pepper and tomato experiments. Soil-drench treatment produced significantly greater levels of Rb in leaf and initial aphid samples relative to foliar treatment. Levels of Rb in aphids from the two treatments were comparable after aphids fed on untreated plants for 24 h. Levels of Rb in aphids declined rapidly after removal from the source: undetectable by Day 6 in the potato experiment and reduced by nearly 90% by Day 5 in the tomato experiment. Foliar application of RbCl solution should be used in field situations. Application is more precise, and the length of detection is comparable with soil drench. Additionally, soil drenching with Rb produced an initially high peak of Rb in the aphids, which may have a physiological effect.

The role of the color of the substratum on the initiation of the probing behavior in Myzus persicae (Sulzer) and Macrosiphum euphorbiae (Thomas) (Homoptera: Aphididae)

1990 ◽  
Vol 68 (4) ◽  
pp. 694-698 ◽  
Author(s):  
Yvan Pelletier
Keyword(s):  
Myzus Persicae ◽  
Green Peach Aphid ◽  
Lower Surface ◽  
Aphid Species ◽  
Macrosiphum Euphorbiae ◽  
Potato Leaf ◽  
Potato Aphid ◽  
Probing Behavior

Twenty-five colors were evaluated for their effect on the initiation of probing behavior in the green peach aphid, Myzus persicae (Sulzer), and the potato aphid, Macrosiphum euphorbiae (Thomas). The proportion of aphids of both species initiating probing behavior was maximum on green, yellow, or orange and lowest on purple, blue, white, or black. The time taken by individual aphids to begin probing was shorter for M. persicae than for M. euphorbiae but was essentially unaffected by colors. A larger proportion of both aphid species probed on the lower surface of potato (var. Kathadin) leaflet compared with the upper surface. The proportion of aphids initiating probing was the same on the lower surface of a potato leaf and on paper similar in color, indicating that the color of the substratum is determinant in the initiation of feeding for those aphids.

Sign in / Sign up

Export Citation Format

Share Document