Adult attractiveness and non-preference for oviposition of Bemisia tabaci (Genn.) biotype B (Hemiptera: Aleyrodidae) in genotypes of Cucurbita spp
DOI:
https://doi.org/10.5433/1679-0359.2013v34n6Supl1p3353Keywords:
Resistance of plants, Whitefly, Squash, Cucurbitaceae.Abstract
The objective was to evaluate the oviposition preference and attractiveness of squash genotypes (Cucurbita spp.) to Bemisia tabaci biotype B. For bioassays, B. tabaci rearing biotype B was kept under greenhouse conditions. Twenty genotypes of Cucurbita spp. (‘Alicia AF 9354’, ‘Aline AF 9353’, ‘Golden Delight’, ‘Nova Caravela’, ‘Menina Morena’, ‘Novita’, ‘AF-6741’, ‘Atlas’, ‘Bárbara 305’, ‘Menina Brasileira’, ‘Caserta’, ‘Itapuã 301’, ‘Tâmara’, ‘Samira’, ‘Canhão Seca Gigante’, ‘Exposição’, ‘Novita Plus’, ‘Daiane’, ‘Formosa’, ‘Sandy’) were evaluated in trials (attractiveness and oviposition choice), under laboratory and greenhouse. The attractiveness (adults/cm2) was assessed et 12, 24, 48 and 72 hours after release. After 72 hours leaves were collected for counting the number of eggs (free choice). The area of the sheets were measured to obtain the number of eggs/cm2 number of adults and / cm 2. The attractiveness index s (AI) and oviposition preference index (OPI) were calculated, and the genotype ‘Novita’ was adopted as the standard susceptible. The genotype ‘Golden Delight’ was the most attractive to adults of B. tabaci biotype B. ‘Sandy’ ‘Daiane’ and ‘Formosa’ showed low attractiveness and ‘Golden Delight’ was the most atractive to B. tabaci biotype B adults. ‘Sandy’, ‘Exposição’, ‘Daiane’, ‘Atlas’, ‘Tamara’ and ‘Formosa’ expressed no preference for free choise assay. According to the attractiveness index (AI) the genotype ‘Golden Delight’ was the most attractive to adults of B. tabaci biotype B, and between repellents stood out ‘Sandy’, ‘Daiane’, ‘Formosa’, ‘Novita Plus’, ‘Atlas’, ‘Bárbara 305’, ‘Canhão Seca Gigante’ and ‘Menina Brasileira’. The genotypes ‘Nova Caravela’, ‘Golden Delight’, ‘Aline AF 9353’ and ‘Samira’ are considered by stimulating oviposition preference index (OPI), while the genotypes ‘Sandy’, ‘Exposição’, ‘Daiane’ , ‘Atlas’, ‘Tâmara’, ‘Formosa’, ‘Menina Morena’ and ‘Itapuã 301’ were considered deterrents.
Downloads
Published
How to Cite
Issue
Section
License
O Copyright dos manuscritos publicados pertence ao periódico. Como são publicados em um periódico de acesso aberto, eles estão disponíveis gratuitamente, para uso privado ou para fins educacionais e não comerciais.
A revista tem o direito de fazer, no documento original, alterações referentes às normas lingüísticas, ortografia e gramática, com o objetivo de garantir as normas padrão do idioma e a credibilidade da revista. No entanto, respeitará o estilo de escrita dos autores.
Quando necessário, alterações conceituais, correções ou sugestões serão encaminhadas aos autores. Nesses casos, o manuscrito deve ser submetido a uma nova avaliação após revisão.
A responsabilidade pelas opiniões expressas nos manuscritos é inteiramente dos autores.
