Preferência para oviposição e ciclo de vida de mosca-negra- dos-citros Aleurocanthus woglumi Ashby em espécies frutíferas

Lopes, Gislane da Silva; Lemos, Raimunda Nonata Santos de; Araújo, José Ribamar Gusmão; Marques, Luciano Façanha; Vieira, Daniele Lavra

doi:10.1590/s0100-29452013000300010

Cited by 10 publications

(11 citation statements)

References 9 publications

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“…In relation to the nymphal period in "Pera" orange, 1 st instar of nymphs lasted on average 7.76 days, statistically differing from mango (8.86 days) and malay apple (9.42 days) ( Jaboticabal -SP duration was 7.86 days in orange and 8.10 days in mango, with no statistical difference, and in malay apple, it was 10.50 days, corroborating data found in other studies (RONCHI -TELLES et al, 2009;LOPES et al, 2013). The puparium phase duration was 24.18 days on average in orange and 25.20 days in mango, with no significant difference, and in malay apple, this phase was longer, with mean duration of 26.66 days ( Table 1).…”

Section: Biological Aspects In Three a Woglumi Hosts Under Laboratorsupporting

confidence: 87%

“…In laboratory conditions, 2 nd instar nymphs showed a duration of 6.94 and 7.36 days, and under field conditions, this period varied from 8 to 11 days, and for 3 rd instar nymphs, this period ranged from 6.36 to 9.96 days and the mean period of the puparium stage (4 th instar nymphs) was 33.58 days (Oliveira et al, 2001, CUNHA et al, 2003RONCHI-TELES et al, 2009;LOPES et al al., 2013).…”

Section: Introductionmentioning

confidence: 99%

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BIOLOGICAL ASPECTS AND INSECTICIDE ACTION OF PLANT SPECIES ON EGGS AND NYMPHS OF CITRUS BLACK FLY (Aleurocanthus woglumi Ashby - Aleyrodidae)AT LABORATORY LEVEL

et al. 2017

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ABSTRCT -Aleurocanthus woglumi Ashby (Hemiptera: Aleyrodidae) is an important pest of many plant species in particular citrus species. The aims of this study were: (1) to observe 'in vitro' biological aspects in three hosts and (2) to evaluate the bioactivity of plant species on immature A.woglum. Aqueous neem extract (Meliaceae), cassava wastewater, pepper sauce and gravy peduncle floral carnation guinea button and commercial neem were used in the experiment. Egg viability (%), nymphal period duration, nymphal mortality (%), puparium stage duration and pupae viability (%) were evaluated in 50 egg positions, with minimum of five eggs in "Pera" orange, mango and malay apple leaves obtained in the field. The insecticide effect (translaminar action and direct spray) at different concentrations on immature A.woglumi was evaluated. The first bioassay conducted to evaluate the bioactivity of species by translaminar action, each sample unit corresponded to three leaves, with minimum of 20 eggs and 20 1 st instar nymphs, the variables were unviable eggs and nymph mortality (%); the experiment had a completely randomized design with four replications. In the second bioassay, fully infected branches were sprayed on upper and lower face of leaves with all treatments. Leaves with at least 40 eggs and 40 1 st instar nymphs were marked, and mortality (%) and emergence (%) of adults were evaluated for seven days; each sample unit was represented by 40 eggs and 40 1 st instar nymphs and the experiment had a completely randomized design with four replications. The average duration of the nymphal period ranged from 7.76 to 24.18 days in "Pera" orange, and from 8.86 to 25.20 days in mango. There was no significant difference between the viability of eggs and nymphs in "Pera" orange and mango or pupae viability between "Pera" orange and malay apple. Treatment efficiency was evaluated using the Abbott's formula [E(%) = T-I/T x 100], where E ( % ) = efficiency percentage, T = number of live insects in the control treatment and I = number of live insects in treatment with insecticide. Therefore, in the first bioassay conducted to evaluate the bioactivity of species by translaminar action, all treatments showed efficiency greater than 50%. In the second bioassay by direct spraying to cassava wastewater (100% and 50 %) and commercial neem oil (1%), treatment had nymphal mortality efficiency greater than 80%. Index Terms: Azadirachta indica. Botanical insecticide. Manipueira. ASPECTOS BIOLÓGICOS E AÇÃO INSETICIDA DE ESPÉCIES VEGETAIS SOBRE IMATUROS DA MOSCA-NEGRA-DOS-CITROS (Aleurocanthus woglumiAshby -HEMIPTERA: ALEYRODIDAE) EM LABORATÓRIO RESUMO -Aleurocanthus woglumi Ashby (Hemiptera: Aleyrodidae) é uma importante praga para diversas espécies botânicas, em especial as espécies cítricas. Os objetivos deste estudo foram: (1) observar in vitro aspectos biológicos em três hospedeiros (laranjeira-pera, mangueira, jambeiro-vermelho) e (2) avaliar a bioatividade de espécies vegetais sobre imaturos de A.woglum. Foram utilizados no experimento...

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Section: Biological Aspects In Three a Woglumi Hosts Under Laboratorsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

BIOLOGICAL ASPECTS AND INSECTICIDE ACTION OF PLANT SPECIES ON EGGS AND NYMPHS OF CITRUS BLACK FLY (Aleurocanthus woglumi Ashby - Aleyrodidae)AT LABORATORY LEVEL

et al. 2017

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“…This trend might be related to technical or climatic conditions. Considering that most of Pará state has two well-defined seasons: the first semester is the rainiest and the second semester has scarce rainfall (LOPES et al, 2013). The cultivation of this crop is thus limited to the first half of the year.…”

Section: Introductionmentioning

confidence: 99%

Water Demand, Crop Coefficient and Uncoupling Factor of Cowpea in the Eastern Amazon

et al. 2017

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-Cowpea has great socioeconomic importance in the northeastern part of Pará state. However, in order to provide suitable irrigation management during the dry period this region requires solid information regarding water demand by regional crops. This research aims to determine the water demand, the crop coefficient (Kc) and the uncoupling factor during the different development stages of cowpea in the northeast of Pará. The crop evapotranspiration (ETc) was measured by drainage lysimeters. This information was coupled to the reference evapotranspiration (ETo) to obtain the crop coefficients, which were used to adjust the model function of accumulated degree-days and the leaf area index (LAI). The uncoupling factor was estimated to indicate the factors that control evapotranspiration. The ETc values reached a cumulative total of 267.73 mm ± 10.21 mm during the cowpea cycle. The average value of the uncoupling factor was 0.66. This indicates that the cowpea crop does not fully uncouple from the atmosphere underneath the climatic conditions in northeast Pará. The cowpea Kc values presented averages of 0.8, 1.4 and 0.8 in the vegetative phase, reproductive phase and final stage, respectively. The Gaussian model showed an excellent fit for the estimation of Kc values based on accumulated degree days and the LAI. These amounts differ from others found in the literature. Therefore, it reinforces the necessity for an assessment of crop coefficients under local conditions and for the employment of more precise methods.Keywords: Vigna unguiculata L. Walp. Penman-montheith. Lysimeters. Uncoupling factor. Evapotranspiration. DEMANDA HÍDRICA, COEFICIENTE DE CULTIVO E FATOR DE DESACOPLAMENTO DOFEIJÃO CAUPI NA AMAZÔNIA ORIENTAL RESUMO -O feijão caupi possui grande importância sócioeconômica para o nordeste paraense, porém, a região necessita de informações seguras quanto demanda hídrica, para promover um manejo adequado de irrigação no período considerado mais seco do ano. Assim, o objetivo da pesquisa foi determinar a demanda hídrica, coeficiente da cultura (Kc) e fator de desacoplamento nos diferentes estádios de desenvolvimento do feijão caupi no nordeste paraense. Com a evapotranspiração da cultura (ETc), obtida por meio de lisímetros de drenagem, e a evapotranspiração de referência (ETo) foram obtidos os coeficientes de cultura (Kc), utilizados posteriormente, para ajustar modelos em função dos graus dias acumulados (GD) e índice de área foliar (IAF), o fator de desacoplamento foi estimado para indicar os fatores que estão governando a evapotranspiração.

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“…Ronchi-Telles et al (2009) caracterizaram A. woglumi como uma espécie multivoltina, com ciclo médio de vida de 71,76 + 2,07 dias. Lopes et al (2013) observaram que este inseto apresenta preferência por ovipositar nas espécies cítricas (limoeiro, laranjeira e tangerineira), mantendo um padrão de não preferência em cajueiro e goiabeira, sendo que os hospedeiros laranjeira e mangueira não interferiram no ciclo biológico desta praga, com duração de 66,71 + 0,71 e 69,00 + 0,65 dias, respectivamente.…”

Section: Introductionunclassified

Flutuação populacional e dependência espacial de Aleurocanthus woglumi Ashby, 1915 (Hemiptera: Aleyrodidae) em Citrus latifolia

Vieira¹,

Ottati²,

Lemos

et al. 2014

Rev. Bras. Frutic.

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na estação chuvosa e de 9.615 m 2 na estação seca. Para se obter uma estimativa confiável de populações de mosca-negra-dos-citros, pelo menos uma armadilha deve ser usada a cada 17 hectares na estação chuvosa e uma armadilha por hectare na estação seca. termos pra indexação: Mosca-negra-dos-citros, distribuição espacial, geoestatística. population fluctuation and spatial dependenceof Aleurocanthus woglumi ashBY, 1915 (hemiptera: aleYrodidae) on Citrus latifolia aBstract -The citrus blackfly, Aleurocanthus woglumi, presents high dispersal ability and adaptability to diverse climatic conditions as well as large reproductive potential. This study aimed to evaluate the populational fluctuation and to characterize the pattern of spatial dependence of citrus blackfly in a commercial orchard of Tahiti lime (Citrus latifolia Tanaka), in São José de Ribamar county, state of Maranhão. A global positioning system (GPS) and geographic information system (GIS) were used to locate the points of the samples, to characterize the pattern of distribution, calculate the aggregation area and produce distribution maps of the adults of citrus blackfly in the orchard. The average total number of citrus blackflies was higher during the rainy season and there were significant correlations between the variables rainfall, relative humidity and total number of adults. The spatial distribution of A. woglumi in the orchard is aggregated, adjusting the calculated variograms to the spherical model in the dry and rainy seasons. The insects showed an area of mean aggregation of 162,092 m 2 in the rainy season and 9,615 m 2 in the dry season. Thus, to obtain a reliable estimate of citrus blackfly populations, at least one trap should be used every 17 hectares in the rainy season and one trap per hectare in the dry season. index terms: Citrus blackfly, spatial distribution, geostatistics.

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Preferência para oviposição e ciclo de vida de mosca-negra- dos-citros Aleurocanthus woglumi Ashby em espécies frutíferas

Cited by 10 publications

References 9 publications

BIOLOGICAL ASPECTS AND INSECTICIDE ACTION OF PLANT SPECIES ON EGGS AND NYMPHS OF CITRUS BLACK FLY (Aleurocanthus woglumi Ashby - Aleyrodidae)AT LABORATORY LEVEL

BIOLOGICAL ASPECTS AND INSECTICIDE ACTION OF PLANT SPECIES ON EGGS AND NYMPHS OF CITRUS BLACK FLY (Aleurocanthus woglumi Ashby - Aleyrodidae)AT LABORATORY LEVEL

Water Demand, Crop Coefficient and Uncoupling Factor of Cowpea in the Eastern Amazon

Flutuação populacional e dependência espacial de Aleurocanthus woglumi Ashby, 1915 (Hemiptera: Aleyrodidae) em Citrus latifolia

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