Resistência de genótipos de soja à mosca branca Bemisia tabaci (Genn.) biótipo B (Hemiptera: Aleyrodidae)

Resistance of Soybean Genotypes to Bemisia tabaci (Genn.) Biotype B (Hemiptera: Aleyrodidae)

“…A high density of trichomes is positively correlated with oviposition by B. tabaci biotype B on several different host crops, such as cotton (Mound 1965, Flint & Parks 1990, soybean (McAuslane et al 1995, Lima & Lara 2004, and tomato (Heinz & Zalon 1995). Butter & Vir (1989) suggested that densely haired genotypes may offer a more appropriate microhabitat for oviposition to B. tabaci females, which prefer to lay their eggs at the base of the trichome insertion (Omram & El-Khidir 1978, Berlinger 1986).…”

Assesing Bemisia tabaci (Genn.) biotype B resistance in soybean genotypes: Antixenosis and antibiosis

“…Although 'PI 227687' has stimulated studies on the resistance of soybean to insects after being identified as the bearer of multiple resistance (Van Duyn et al, 1971;Clark et al, 1972;Smith, 1985;Beach and Todd, 1988), this material was described as the most favorable to the development of the nymphs of B. tabaci biotype B by Lima and Lara (2004). In the present study, this material was also favorable to the development of whitefly nymphs.…”

“…Among other explanations, this resistance may be the result of morphological features, such as epidermal thickness and/or biochemical factors, such as the concentrations of free amino acids, fatty acids and fiber present in the leaflets, which may have adverse effects on the insect and, in some way, affect the biological performance of the insect (Lara, 1991;Panda and Khush, 1995;Lima and Lara, 2004;Smith, 2005).…”

“…In Brazil, B. tabaci has been a sporadic problem in the soybean crop for a long time; however, with the arrival of the relatively aggressive biotype B in the 1990s (Lourenção and Nagai, 1994), the soybean has become a major host (Lima and Lara, 2004). While sucking the sap of the soybean plant, this whitefly excretes a sugar solution (honey dew), leading to development of colonies of fungi (Capnodium sp.)…”

Host Plant Resistance for the Management of Bemisia tabaci: A Multi-crop Survey with Emphasis on Tomato

“…Low abundance, parasitism and oviposition rates of B. argentifolii on certain soybean isolines in Florida (USA) were related to low trichome density (McAuslane et al 1995a;McAuslane, 1996). Different field and controlled condition trials were conducted in Brazil to evaluate oviposition, non-preference and antibiosis of B. tabaci biotype B on different soybean genotypes (Lima et al 2002;Lima and Lara 2004). The obtained results strongly suggest that the resistance observed in some of these genotypes was stable (Do Valle and Lourencao, 2002).…”