Adubação e inseticidas no controle de Empoasca kraemeri e Bemisia tabaci, em cultivares de feijoeiro semeados no inverno

Boiça, Arlindo Leal; Santos, Terezinha Monteiro dos; Muçouçah, Marcus Juabre

doi:10.1590/s0103-90162000000400007

Cited by 5 publications

(3 citation statements)

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“…Boiça Júnior et al (2000), avaliaram o controle de B. tabaci com inseticidas Fosfamidom 500 e Metamidophos BR, na dose de 0.5 L ha-1 , em diferentes cultivares de feijoeiro, semeadas na época de Inverno (Maio) de 1999, e constataram que o inseticida controlou a incidência do inseto vetor em todas as cultivares, proporcionando incrementos na produção de grãos.…”

Section: Controleunclassified

DOENÇAS CAUSADAS POR VÍRUS NA CULTURA DE FEIJOEIRO (Phaseolus vulgaris L.)

Fiallos

2010

cyt

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O feijoeiro é atacado, além de fungos, nematóides e bactérias, por vírus que podem causar danos e perdas numa lavoura. As doenças causadas por vírus têm exercido um papel relevante na baixa produtividade do feijoeiro no Brasil e outros países Latino-Americanos. Os métodos de controle para as viroses de plantas cultivadas são, em geral, muito restritos. Pela falta desta informação e pela importância da cultura do feijão, se traz esta revisão, onde são relatadas as doenças virais mais importantes desta cultura dentro do Brasil e fora dele, explicando detalhadamente sua sintomatologia, etiologia e seu controle. As doenças viróticas mais importantes no feijoeiro no Brasil são o bean common mosaic virus (BCMV), bean golden mosaic virus (BGMV), bean rugose mosaic virus (BRMV), cowpea mild mottle virus (CpMMV) e southern bean mosaic virus (SBMV). Esta revisão traz o mais importante em relação às doenças primordiais causadas por vírus de plantas na cultura de feijão.

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Section: Controleunclassified

DOENÇAS CAUSADAS POR VÍRUS NA CULTURA DE FEIJOEIRO (Phaseolus vulgaris L.)

Fiallos

2010

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“…Torres et al (2006) checked that among several aqueous extracts tested, the one based in neem oil affected the development of Plutella xylostella (L.) in almost all its cycle. Due to the problems caused by insecticides in the agroecosystem, alternative methods to control pest have been studied, as the use of resistant varieties to whitefly (BOIÇA JÚNIOR et al, 2000a).…”

Section: Introductionmentioning

confidence: 99%

Effect of bean genotypes, insecticides, and natural products on the control of Bemisia tabaci (Gennadius) biotype B (Hemiptera: Aleyrodidae) and Caliothrips phaseoli (Hood) (Thysanoptera: Thripidae)

et al. 2011

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ABSTRACT. Effect of bean genotypes, insecticides, and natural products on the control of Bemisia tabaci (Gennadius) biotype B (Hemiptera: Aleyrodidae) and Caliothrips phaseoli (Hood) (Thysanoptera: Thripidae). The influence of bean genotypes associated with neem oil as insecticide was evaluated to control B. tabaci (Gennadius) biotype B and C. phaseoli (Hood) during the wet season sowing. The experimental design used was the randomized block arrangement in a 4x4x3 factorial scheme, represented by genotypes, neem oil and insecticides respectively, with three replications. The genotypes Carioca, IAC Harmonia, IAC Centauro and Pérola were used. The evaluations were done at 14 and 42 days after seedling emergence, by counting B. tabaci biotype B eggs and nymphs and C. phaseoli nymphs in the genotypes leaf. Conclusion: The B. tabaci biotype B eggs and nymphs number were smaller in IAC Centauro and higher in IAC Harmonia. The tested genotypes were similarly infested by C. phaseoli. IAC Centauro and IAC Harmonia genotypes associated with neem oil (highlighting the full dose -1%) provided lower number of whitefly eggs and thrips nymphs. Neem oil at the full dose also reduced whitefly nymph number. In the tested genotypes the insecticide provided reduction in the number of whitefly eggs and nymphs as well in the thrips nymphs, with increase in the recommend dose.

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“…Among these species, Empoasca kreameri Ross & Moore has greater economical importance in the tropics and subtropics while Empoasca fabae (Harris) is more important in colder climates (Abate and Ampofo 1996). The adults and nymphs of E. kraemeri feed on sap and inject toxins into the plant vascular system (Nault and Rodrigues 1985; Boiça et al. 2000).…”

Section: Introductionmentioning

confidence: 99%

Conventional sampling plan for the green leafhopper Empoasca kraemeri in common beans

Moura

Picanço

Guedes

et al. 2006

J Applied Entomology

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A conventional sampling plan for the leafhopper Empoasca kraemeri Ross & Moore (Auchenorrhyncha: Cicadellidae) in common beans (Phaseolus vulgaris L.) is presented based on samples from 51 commercial fields. The research encompassed three phases. The first phase had the objective of determining the most suitable leaf to be used as a precise and representative sampling unit. In the second phase of the project, the available sampling methods for E. kraemeri were compared, including the approach identified in the first phase. In the third phase, the theoretical frequency distribution of the sampling data was assessed and the number of samples necessary for the sampling plan was established. The best leaves to sample adult leafhoppers were the fourth and the fifth from the apex, while the best leaf for sampling nymphs was the fifth from the apex. The best sampling technique for nymphs and adults was the beating of the apical leaves against a plastic tray. The sampling data obtained with this technique were fit to a negative binomial distribution with common aggregation parameter for adults (K common ¼ 1.04) and nymphs (K common ¼ 0.47). This sampling plan required 16.8 and 31.2 min to be carried out at an expense of US$ 0.31 and US$ 0.54 for sampling adults and nymphs in a field, respectively.

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Adubação e inseticidas no controle de Empoasca kraemeri e Bemisia tabaci, em cultivares de feijoeiro semeados no inverno

Cited by 5 publications

References 1 publication

DOENÇAS CAUSADAS POR VÍRUS NA CULTURA DE FEIJOEIRO (Phaseolus vulgaris L.)

DOENÇAS CAUSADAS POR VÍRUS NA CULTURA DE FEIJOEIRO (Phaseolus vulgaris L.)

Effect of bean genotypes, insecticides, and natural products on the control of Bemisia tabaci (Gennadius) biotype B (Hemiptera: Aleyrodidae) and Caliothrips phaseoli (Hood) (Thysanoptera: Thripidae)

Conventional sampling plan for the green leafhopper Empoasca kraemeri in common beans

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