Resistance of cotton genotypes to silverleaf whitefly (Bemisia tabaci [GENNADIUS] Biotype B)

2020 ◽  
Author(s):  
Carlos Eduardo da Silva Oliveira ◽  
Lúcia Vieira Hoffmann ◽  
Luciana Cláudia Toscano ◽  
Mariana Silva Queiroz ◽  
Tiago Zoz ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Silverleaf Whitefly ◽  
Cotton Genotypes ◽  
Biotype B

scholarly journals Resistance of melon cultivars to Bemisia tabaci biotype B

2012 ◽  
Vol 30 (4) ◽  
pp. 600-606 ◽  
Author(s):  
Edson LL Baldin ◽  
José Paulo GF da Silva ◽  
Luiz Eduardo R Pannuti
Keyword(s):  
Bemisia Tabaci ◽  
Plant Resistance ◽  
Chemical Control ◽  
Alternative Methods ◽  
Silverleaf Whitefly ◽  
Trichome Density ◽  
Breeding Programs ◽  
Biotype B ◽  
Future Work ◽  
Bemisia Tabaci Biotype B

The silverleaf whitefly, Bemisia tabaci biotype B, is currently one of the most important pests of melon, causing direct and indirect damage to plants, and significantly reducing production in the field. Due to the need for alternative methods of chemical control in melon crops, the melon cultivars AF-646, AF-682, Don Luis, Frevo, Jangada, Nilo, Vereda, Amarelo Ouro and Hales Best were assessed at field, greenhouse, and laboratory trials for resistance to whitefly B. tabaci biotype B. In general, 'Hales Best' and 'Amarelo Ouro' were the most resistant, showing oviposition non-preference against whitefly. The trichome density is associated with the variation in oviposition on the cultivars and should be further investigated in future work. These results may be helpful in melon breeding programs, focusing on plant resistance to B. tabaci biotype B.

scholarly journals Resistance of tomato genotypes to the silverleaf whitefly mediated by acylsugars

2009 ◽  
Vol 27 (3) ◽  
pp. 345-348 ◽  
Author(s):  
Juliano TV de Resende ◽  
Wilson R Maluf ◽  
Maria das Graças Cardoso ◽  
Luciano Donizete Gonçalves ◽  
Marcos V Faria ◽  
...  
Keyword(s):  
Lycopersicon Esculentum ◽  
Bemisia Tabaci ◽  
The Other ◽  
Wild Accession ◽  
Silverleaf Whitefly ◽  
Tomato Crop ◽  
Lycopersicon Pennellii ◽  
Biotype B ◽  
Bemisia Tabaci Biotype B ◽  
Tomato Genotypes

Acylsugars in the leaflets of the wild accession LA-716 (Lycopersicon pennellii) gives resistance to Bemisia spp., which causes expressive losses to the tomato crop. The goal of this work was to evaluate the resistance to the silverleaf whitefly (Bemisia tabaci biotype B) of previously selected genotypes, based on the level of acylsugars in the leaflets. F2BC1 plants {F2[Lycopersicon esculentum TOM 584 x (L. esculentum TOM 584 x L. pennellii LA-716)]} were selected for extreme contents of acylsugars: BPX-370B pl#30-275, BPX-370B pl#79-278, BPX-370B pl#30-380, BPX-370B pl#25-271 (high contents), BPX-370B pl#30-02, BPX-370B pl#30-142 (low contents). These genotypes, along with the parents TOM 584 and LA-716, were submitted to a silverleaf whitefly infestation. Oviposition and nymph development were evaluated. The oviposition on the genotypes BPX-370B pl#30-275 and BPX-370B pl#30-380 was significantly lower to that which occurred on the genotype TOM 584 and in the other genotypes of the F2RC1 generation. The four genotypes selected for high acylsugar contents presented the lowest number of nymphs, except to LA-716. Although the number of eggs in the BPX-370B pl#25-271 and BPX-370B pl#79-278 genotypes (high contents) was elevated, the number of nymphs was reduced, similarly to the other high-acylsugar genotypes, probably due to antibioses effect.

Resistance of cotton genotypes with different leaf colour and trichome density to Bemisia tabaci biotype B

2015 ◽  
Vol 140 (6) ◽  
pp. 405-413 ◽  
Author(s):  
J. C. do Prado ◽  
M. F. G. V. Peñaflor ◽  
E. Cia ◽  
S. S. Vieira ◽  
K. I. Silva ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Trichome Density ◽  
Leaf Colour ◽  
Cotton Genotypes ◽  
Biotype B ◽  
Bemisia Tabaci Biotype B

scholarly journals Occurrence of Eretmocerus mundus Mercet (Hymenoptera: Aphelinidae) parasitizing Bemisia tabaci (Genn.) biotype B (Hemiptera: Aleyrodidae) in Brazil

Bragantia ◽  
2014 ◽  
Vol 73 (2) ◽  
pp. 160-162 ◽  
Author(s):  
André Luiz Lourenção ◽  
Valmir Antonio Costa ◽  
Lillian Silveira Pereira ◽  
Juliana Cardoso Prado
Keyword(s):  
Bemisia Tabaci ◽  
Sao Paulo ◽  
First Report ◽  
Paulo State ◽  
Experimental Station ◽  
Eretmocerus Mundus ◽  
Cotton Plants ◽  
Cotton Genotypes ◽  
São Paulo State ◽  
Biotype B

The parasitism of Bemisia tabaci (Genn.) biotype B nymphs on cotton plants was observed during a research on resistance of cotton genotypes to this whitefly. The experiment was set in a greenhouse at the Experimental Station of the Instituto Agronômico (IAC), in Campinas, São Paulo State, Brazil. Samples of the parasitized nymphs were collected and maintained in laboratory to monitor the parasitism and obtain the adult parasitoids. A total of 129 adult parasitoids were obtained, including one Encarsia inaron (Walker), 13 En. lutea (Masi), and 115 Eretmocerus mundus Mercet (Hymenoptera: Aphelinidae). This is the first report of Er. mundus in Brazil.

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