Distribuição espacial de Dilobopterus costalimai young (Hemiptera: Cicadellidae) em citros na região de Taquaritinga, SP

Maruyama, Wilson Itamar; Barbosa, José Carlos; Fernandes, Marcos Gino; Yamamoto, Pedro Takao

doi:10.1590/s1519-566x2002000100005

Cited by 15 publications

(10 citation statements)

References 4 publications

(4 reference statements)

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“…It was found in soybean fields in both non-Bt ten samples in the field, most of them showed aggregated to the nymphs, and a sample arrangement shown in Douradina randomized, (49 DAE) the dispersion index K (Table 2). These results agree with Maruyama et al (2002), mentioning the fact that the provision of insects in general tends to aggregate in the field normally. Fonseca et al (2013c) studied the distribution of pests and conducted theoretical frequency distributions for insect pests in eight to 12 samples in field.…”

Section: Resultssupporting

confidence: 90%

Spatial Distribution of Adults and Nymphs of Euschistus heros (F.) (Hemiptera: Pentatomidae) on Bt and Non-Bt Soybean

Fonseca

Fernandes²,

Justiniano³

et al. 2014

JAS

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The knowledge of the arrangements of dispersion of insect pests in soybean cultivars is needed to improve the monitoring and control. The objective of this study was to evaluate the spatial distribution of adults and nymphs of Euschistus heros in Bt and non-Bt soybean into two regions, under field conditions. The experimental area located in Dourados and Douradina, Mato Grosso do Sul. For the evaluations we used the method of cloth-to-beat, where we collected one sample per plot randomly from each experimental area. Evaluations were performed at 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98 days after emergence (DAE). For data analysis, the rates of dispersion (variance/average Morisita index and exponent k  Negative Binomial Distribution) and theoretical frequency distributions (Poisson, Binomial and Negative Binomial Positive) were estimated at 1-5 % probability. Adults of E. heros are arranged differently for Bt and non-Bt soybean and between regions, since in both cultivars and locations, individuals of the populations evaluated in probabilistic set arrangements negative binomial distribution (aggregate), Poisson (random) and positive binomial distribution (uniform), as the days after soybean emergence. The nymphs of E. heros showed aggregated spatial arrangement, being distributed similarly for Bt and non-Bt soybean and regions, setting a negative binomial distribution model.

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Section: Resultssupporting

confidence: 90%

Spatial Distribution of Adults and Nymphs of Euschistus heros (F.) (Hemiptera: Pentatomidae) on Bt and Non-Bt Soybean

Fonseca

Fernandes²,

Justiniano³

et al. 2014

JAS

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“…Several authors have reported aggregate distributions of insect pests in some crops, such as Selenaspidus articulatus (Morgan) (Perruso and Cassino, 1997), Dilobopterus costalimai Young (Maruyama et al, 2002), and Orthezia praelonga Douglas (Costa et al, 2006) in citrus, and small Spodoptera frugiperda (J.E. Smith) caterpillars in corn (Farias et al, 2001).…”

Section: Resultsmentioning

confidence: 99%

Spatial distribution of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) in citrus orchards

Costa

Barbosa

Yamamoto³

et al. 2010

Sci. agric. (Piracicaba, Braz.)

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The psyllid Diaphorina citri Kuwayama is one of the most important pests of citrus, mainly because it is the vector of the bacterium that causes huanglongbing (HLB) or 'Greening' disease. To study the spatial distribution of nymphs and adults of this pest, an experiment was carried out in two 'Valencia' sweet orange orchards, four and 12 years of age, established in Matão, central area of São Paulo state, Brazil. The following dispersion indices were used to study pest aggregation in the citrus plants: variance/mean relationship (I), index of Morisita (I δ ), coefficient of Green (Cx), the k exponent of negative binomial distribution, common k (k c ) and Taylor's Power Law for each sampling. The negative binomial distribution was more representative of the spatial distribution of this psyllid, for both nymphs and adults. For most samplings, psyllid nymphs found in branches and adults caught in traps had an aggregated distribution.

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“…To accommodate the random standards of a species, an analysis of the dispersion index and the probability distribution should be conducted (Maruyama et al 2002, Almeida et al 2006, Costa et al 2006), which has not been reported for Lu. longipalpis.…”

mentioning

confidence: 99%

The distribution pattern of Lutzomyia longipalpis (Diptera: Psychodidae) in the peridomiciles of a sector with canine and human visceral leishmaniasis transmission in the municipality of Dracena, São Paulo, Brazil

Rangel

Sampaio

Ciaravolo

et al. 2012

Mem. Inst. Oswaldo Cruz

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Distribuição espacial de Dilobopterus costalimai young (Hemiptera: Cicadellidae) em citros na região de Taquaritinga, SP

Cited by 15 publications

References 4 publications

Spatial Distribution of Adults and Nymphs of Euschistus heros (F.) (Hemiptera: Pentatomidae) on Bt and Non-Bt Soybean

Spatial Distribution of Adults and Nymphs of Euschistus heros (F.) (Hemiptera: Pentatomidae) on Bt and Non-Bt Soybean

Spatial distribution of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) in citrus orchards

The distribution pattern of Lutzomyia longipalpis (Diptera: Psychodidae) in the peridomiciles of a sector with canine and human visceral leishmaniasis transmission in the municipality of Dracena, São Paulo, Brazil

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