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Salicylic acid: resistance inducer to two-spotted spider mite in strawberry crop Horticultura Brasileira
Favaro,Renata; Resende,Juliano Tadeu V; Gabriel,André; Zeist,André R; Cordeiro,Ely Cristina N; Favaro Júnior,Jorge Luís.
ABSTRACT The strawberry is susceptible to several pests which cause a reduction in productivity. The use of mechanisms which repel or prevent these pests to establish, represent a sustainable environmental technology to reduce the frequency of agrochemical use. In this context, the aim of this study was to evaluate the effect of salicylic acid (SA) on resistance induction against two-spotted spider mite in strawberry cultivars (Aromas and Sweet Charlie). Five concentrations of SA (0, 25, 50, 75 and 100 mg L-1) were tested in order to verify the antixenosis effects. In SA concentration of 50 mg L-1, a reduced number of mites in the two strawberry cultivars was noticed. For the number of eggs deposited on leaflet, we verified an effect of SA concentration...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fragaria x ananassa; Two-spotted spider mite; Antixenosis..
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000100060
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Strawberry genotypes with resistance to Tetranychus urticae mediated by leaf trichomes Ciência e Agrotecnologia
Resende,Juliano Tadeu Vilela de; Lima Filho,Renato Barros de; Ribeiro,Luana Karolline; Corrêa,Jéssica Vanessa Wosniak; Maciel,Cleber Daniel de Goes; Youssef,Khamis.
ABSTRACT The two-spotted spider mite (Tetranychus urticae) is the main pest encountered in strawberry cultivation in protected environments, causing damage and increasing the cost of production associated with chemical control. Breeding programs are essential for obtaining new cultivars that are more tolerant to two-spotted spider mites. The objective was to evaluate whether the leaf trichomes mediatethe resistance of intraspecific strawberry hybrids to two-spotted spider mites. Preselected hybrids were subjected to infestation by two-spotted spider mites and evaluated via the no-choice assay and the travel test. Resistance was correlated with the density of trichomes, both glandular and non-glandular, present on the surface of the leaflets of strawberry...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fragaria x ananassa; Intraspecific hybridization; Antibiosis; Antixenosis..
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100220
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