Bradysia sp. em morangueiro

Radin, Bernadete; Wolff, Vera Regina dos Santos; Lisboa, Bruno Brito; Witter, Sídia; Silveira, José Ricardo Pfeifer

doi:10.1590/s0103-84782009000200036

Cited by 9 publications

(6 citation statements)

References 7 publications

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“…Higher labor costs and the need to temporarily scale up production to meet the frequent demand for food lead eventually to disregard of basic cleaning measures. Algae compete for nutrients, water and light with vegetables (Radin et al, 2009). Measures that reduce luminous incidence, such as the coverage of physical structures by plastic films, have been theoretically reported as efficient for algae control (Vännen & Koskula, 1998).…”

Section: Introductionmentioning

confidence: 99%

“…These flies feed on algae and may inevitably damage the seedlings rootlets (Epenhuijsen et al, 2001). The role of these flies in horizontally transmitting pathogens to plants is also proven (Keates et al, 1989;El-Hamalawi, 2008;Radin et al, 2009). The association between algae, flies and pathogens may potentiate losses in the quantity and quality of food produced in hydroponic systems (Radin et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Hydrogen Peroxide for Insect and Algae Control in a Lettuce Hydroponic Environment

Caixeta¹,

Mata²,

Curvêlo³

et al. 2018

JAS

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Insects and algae demonstrate adaptability in hydroponic environments. Algae attract flies, Bradysia spp. (Diptera: Sciaridae) and Scatella stagnalis (Diptera: Ephydridae), called fungus gnats and shore fly, respectively. Flies feed on algae, damaging seedlings radicellae, and may transmit pathogens to lettuce plants. Little information on the management of flies and algae is known. A paradox in the face of the expansion of hydroponics. The objective was to evaluate the potential of hydrogen peroxide (H 2 O 2 ) as an insecticide and algaecide agent. Entomopathogenic fungi were also evaluated as an alternative control to flies. The experiment was conducted in a commercial hydroponic system under a randomized complete block design with 5 treatments and 4 replicates. The treatments, sprayed on the phenolic foam plates, immediately after lettuce seed deposition, were: H 2 O 2 , Beauveria bassiana, Metarhizium anisopliae, Spinosyn and water, as control. The quality of the lettuce seedlings (cv. Brida), the presence of flies and algae evolution in the phenolic foam plates were recorded daily. H 2 O 2 and Spinosyn affected lettuce seed germination, but were able to reduce adult flies on the phenolic foam cells. The highest number of larvae was observed with both fungi, and only water, compared to H 2 O 2 . No larvae were found in Spinosyn sprayed phenolic foam cells. However, lettuce seedlings from Spinosyn sprayed plates were those with lower fresh weight. H 2 O 2 severely retained algae infestation in phenolic foam cells over a 15-day observation period. The present work demonstrates the potential that H 2 O 2 can play as an insecticidal and algaecide agent in hydroponic environments.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydrogen Peroxide for Insect and Algae Control in a Lettuce Hydroponic Environment

Caixeta¹,

Mata²,

Curvêlo³

et al. 2018

JAS

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“…Las larvas de estos insectos se alimentan de hongos, algas y materia orgánica en descomposición, eventualmente bajo ciertas circunstancias son capaces de perforar raíces sanas de diferentes especies y semillas carnosas, y en infestaciones severas ocasiona la muerte de la planta (Aguilera y Ortega, 1996;Cibrián et al, 2008;Landis et al, 1989;Mansilla et al, 2001;Springer, 1995aSpringer, , 1995b. Varias especies de la familia Sciaridae son documentadas como plagas de importancia económica en invernaderos de ornamentales, hortícolas y forestales, y en la producción del hongo Agaricus bisporus (Lange) Imbach, 1946(Erler et al, 2011Landis et al, 1989;Loudon, 1978;O´Connor y Keil, 2005;Radin et al, 2009;Shin et al, 2012;Smith et al, 2006;Steffan, 1981;White et al, 2000). Las plantas atacadas por las larvas del mosquito fungoso negro manifiestan síntomas como pérdida de vigor, marchitez, desprendimiento de hojas, escaso crecimiento y amarillamiento de follaje (Cibrián et al, 2008, Landis et al, 1989Pundt, 1999).…”

Section: Introductionunclassified

Biología de Lycoriella ingenua y Bradysia impatiens (Diptera: Sciaridae)

Marín-Cruz

Cibrián-Tovar

Méndez-Montiel

et al. 2015

MYB

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ResumenSe estudiaron dos especies de mosquito fungoso negro, Lycoriella (Lycoriella) ingenua (Dufour, 1839) y Bradysia impatiens (Johannsen, 1912) (Diptera: Sciaridae), que causan daño a plántulas de Pinus montezumae (Lamb, 1832) en viveros forestales. Estos dípteros se identificaron morfológicamente y por métodos moleculares y se citan por primera vez como plaga en viveros forestales de México. La proporción sexual para L. ingenua fue de un macho por cada 1.25 hembras; para caracterizar esta especie se midieron huevos, pupas, larvas y cápsulas cefálicas. Con los datos morfométricos de longitud de cuerpo y ancho de la cápsula cefálica de larvas y mediante el método de conglomerados jerárquicos se determinaron los estadios larvarios de la especie. Para B. impatiens por cada macho existen 2.4 hembras. En la distinción de los estadios larvarios, el mejor parámetro fue el ancho de cápsula cefálica. Ambas especies presentaron cuatro estadios larvarios. Las dos especies se criaron en laboratorio a 21 ºC ± 2 ºC. El ciclo completo de L. ingenua requirió de 30.5 días ± 3.5 días. Para B. impatiens el tiempo para concluir ciclos biológicos fue de 27.5 días ± 2.5 días. Se determinó que las larvas de ambas especies consumen la raíz de Pinus montezumae. Se identificaron los hongos asociados a larvas y adultos de ambas especies, Fusarium circinatum fue el más importante y se registra por primera vez en viveros de P. montezumae; esta especie de hongo se identificó mediante morfología y por métodos moleculares.Palabras clave: ciclo biológico, estadios larvarios, hongos asociados, mosquito fungoso negro, proporción de sexos. AbstRActLycoriella (Lycoriella) ingenua (Dufour, 1839) and Bradysia impatiens (Johannsen, 1912) (Diptera: Sciaridae) are two black fungus gnats species studied that harm Pinus montezumae (Lamb, 1832) seedlings in forestry nurseries. These dipterous were morphological and molecularly identified and are mentioned for the first time as a pest in Mexico's forestry nurseries. The proportion of sexes to Lycoriella ingenua was of one male per 1.25 females; to characterize this species eggs, pupas, larvae and cephalic capsules were measured. The morphometric data of body length and cephalic cage width of larvae through the hierarchical conglomerated method determined the larval instars of the species. For B. impatiens there are 2.4 females per male. In the definition of the larval instars, the best parameter was that of the cephalic capsule. Both species presented four larval instars. Both species were bred under lab conditions at 21 °C ± 2 °C. The whole cycle of L. ingenua required 30.5 ± 3.5 days. For B. impatiens the time to conclude biological cycles was of 27.5 ± 2.5 days. It was determined that both species of larvae consume Pinus montezumae root. The fungi associated to larvae and fungi of both species were identified. Fusarium circinatum was the most important and it is registered for the first time in nurseries of Pinus montezumae; this species was morphological and molecularly identified.

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“…In recent years the presence of sciarids has become increasingly common in areas dedicated to agricultural, horticultural, ornamental, and forest species production (Olson et al 2002). Furthermore, sciarids have become a serious phytosanitary problem, not just because of the mechanical damage they produce on the base of leaves, stems, and roots of plants, but because these species are frequently associated with a wide diversity of phytopathogenic fungi, including species of the genera Pythium (Pythiaceae), Botrytis (Sclerotiniaceae) , Sclerotinia (Sclerotiniaceae), Thielaviopsis (Ceratocystidaceae), Cylindrocladium (Nectriaceae) , Fusarium (Nectriaceae), Phoma (Didymellaceae), and Verticillium (Plectosphaerellaceae) (Radin et al 2009; Scarlett et al 2013; Katumanyane et al 2018).…”

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confidence: 99%

Fungus Gnat (Diptera: Sciaridae) as an Emergent Pest Associated with Berry Production in Mexico

Vergara-Pineda,

Toledo-Hernández,

Rodríguez

et al. 2023

Florida Entomologist

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Bradysia sp. em morangueiro

Abstract: I RESUMO No trabalho, relatam-se os primeiros registros de

Cited by 9 publications

References 7 publications

Hydrogen Peroxide for Insect and Algae Control in a Lettuce Hydroponic Environment

Hydrogen Peroxide for Insect and Algae Control in a Lettuce Hydroponic Environment

Biología de Lycoriella ingenua y Bradysia impatiens (Diptera: Sciaridae)

Fungus Gnat (Diptera: Sciaridae) as an Emergent Pest Associated with Berry Production in Mexico

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