Ação de fertilizantes organominerais e acilbenzolar - S - metil sobre transmissão viral por, Bemisia tabaci biótipo B (Genn.) (Hemiptera: Aleyrodidae), em tomateiro

• Autor(a) principal: SOUSA, Nayara Cristina de Magalhães
• Data de Publicação: 2015
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRPE
• Texto Completo: http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5517
• topic: Fertilizante organomineral; Bemisia tabaci; Tomate; Begomovirose; Defesa induzida; Indutor de resistência; Fertilizer organic mineral; Tomato; Begomoviruses; Induced defense; Inducer of resistance; FITOSSANIDADE::ENTOMOLOGIA AGRICOLA

An increasing use of products that triggers herbivores insects resistance induction and plant pathogens or that promote the strengthening of the plants after the emergence of begomovirose. Thus, this study aimed to evaluate the action of fertilizers and biofertilizers inducer acibenzolar - S - methyl (ASM) on mortality and B. tabaci adult behavior and its reflection in tomato disease. Nine products were tested as potential inducers of resistance, the standard insecticide thiamethoxam + lambda-cyhalothrin + 0.5% mineral oil, and the control which consisted only of water. To evaluate the insect mortality were used leaf discs of bean-to-pig. The citrus extract (Sumo K®) had action on insects from 24 hours and caused the highest cumulative mortality of adult whitefly (87.45%). In the interaction of cultivar with inductors on mortality of whitefly the citrus extract (Sumo K®) caused cumulative mortality exceeds 80% in 48 hours of exposure of insects, significantly different from the other products. In the evaluation of resistance induction treatments Sumo K® and Bion® promoted the reduction in the incidence and severity of begomovirose the plant, however, only the mixture insecticide presented desired results. Held adult preference test free choice. There was no significant difference between treatments, only plants sprayed with insecticides were less infested. Thus, we conclude that the use of Sumo-K and Bion in tomato options would be compatible with other control tactics aimed at management of whitefly and begomovírose.