Avaliação de diferentes técnicas de manejo para o controle de gramíneas invasoras em unidade de conservação de cerrado

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Modelos Matemáticos e Computacionais no Manejo Integrado de Pragas

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Resistência a fungicidas estrobilurinas em populações de Pyricularia oryzae de áreas de trigo no Brasil

Pós-graduação em Agronomia - FEIS

Multiplicação de Diaphorina citri e de Candidatus Liberibacter asiaticus em híbridos de citros indicados como porta-enxerto

Pós-graduação em Agronomia (Produção Vegetal) - FCAV

Seleção fenotípica e identificação de snps em regiões genômicas ligados a resistência à ferrugem em Eucalyptus grandis

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

Identificação de bactérias do filoplano de citros capazes de interromper o quórum sensing em Xanthomonas citri subsp. citri

Pós-graduação em Microbiologia Agropecuária - FCAV

Bases biológicas para utilização de Trichospilus diatraeae (Hymenoptera: Eulophidae) para controle de Helicoverpa armigera (Lepidoptera: Noctuidae)

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

Supressividade a Fusarium oxysporum f. sp. cubense por produtos orgânicos

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

Utilização de redes neurais artificiais aplicadas na discriminação de padrões de doenças florestais

Pós-graduação em Ciência Florestal - FCA

Dinâmica populacional e manejo de leptocybe invasa (Hymenoptera: Eulophidae) em plantações de eucalipto

Pós-graduação em Ciência Florestal - FCA

Resposta enzimática, fisiológica e produtiva do tomateiro e desempenho de porta enxertos resistentes à murcha bacteriana

Pós-graduação em Agronomia (Horticultura) - FCA

Caracterização funcional do mutante da ORF XAC1008 de Xanthomonas citri subsp. citri (Xac)

Pós-graduação em Microbiologia Agropecuária - FCAV

Fungicidas protetores no manejo da ferrugem da soja, processos fisiológicos e produtividade da cultura

Currently, the management recommendations for asian soybean rust (ASR) has been based on the application of protective fungicides mixed with triazoles and stronilurins. Thus, this study aimed at assessing whether the increased productivity provided by the application of protective fungicides is due solely to the fungicidal action of the product or some physiological changes in the plant and which the latter would be. The experiment was conducted from March to July 2015 at the experimental station of Udi Research and Development in Uberlândia-MG, with the cultivar 97Y07 RR. The experimental design chosen for this study was comprised of a randomized block with four replications and 16 treatments: check, fluxapyroxad + pyraclostrobin (116.55 + 58.45 g ha-1), azoxystrobin + benzovindiflupir (90 + 45 g ha-1), trifloxystrobin + prothioconazole (60 + 70 g ha-1), tebuconazole + picoxystrobin (100 + 60 g ha-1), picoxystrobin + cyproconazole (60 + 24 g ha-1), mancozeb (1125 g ha-1), azoxistrobina + tebuconazole + difenoconazole (60 + 75 + 120 g ha-1), azoxystrobin + tebuconazole + difenoconazole + chlorothalonil ( 60 + 120 + 75 + 1440 g ha-1), and mistures fluxapyroxad + pyraclostrobin + mancozeb, azoxystrobin + benzovindiflupir + mancozeb, trifloxystrobin + prothioconazole + mancozeb, tebuconazole + picoxystrobin + mancozeb, picoxystrobin + cyproconazole + mancozeb, azoxystrobin + tebuconazole + difenoconazole + mancozeb, and azoxystrobin + benzovindiflupir + chlorothalonil, from the aforesaid doses. The first application of the treatments occurred in R1, in the absence of symptoms. The number of applications, intervals and the use of adjuvants were performed according to the recommendations by manufacturers. The variables analyzed were: disease severity, concentration of chlorophylls and carotenoids, photosynthetic rate (A), transpiration rate (E), stomatal conductance (gs), internal carbon concentration (Ci), instantaneous efficiency in water use (A/E), intrinsic water use efficiency (A/gs), and carboxylation efficiency (A/C). With these data collected, this study set to date the progress curve of each variable (AUPC). At the end of the crop cycle, the average of pods per plant was quantified, grain per pod, productivity and weight of 1,000 grains. It was concluded that: the addition of mancozeb to fluxapyroxad + pyraclostrobin, azoxystrobin + benzovindiflupir, trifloxystrobin + prothioconazole and tebuconazole + picoxystrobin potentiated the ASR control; adding mancozebe to the mixture azoxystrobin + benzovindiflupir provided better control of the disease compared to the addition of chlorothalonil; mancozeb amounts to AUPC concentration of photosynthetic pigments and when added to axozystrobin + tebuconazole + difenoconazole, increases the AUPC for total chlorophyll concentration, as well as when chlorothalonil was added; mancozeb added to the mix fluxapyroxad + pyraclostrobin raised the AUPC for A/Ci and A/gs, increasing the W1,000G and crop productivity; the addition of protectors similarly reflected on the productivity of culture.

Efeito de agentes de controle sobre a qualidade reprodutiva de rainhas de Apis mellifera L. (Hymenoptera: Apidae) africanizadas

The agriculture with the use of products with less environmental impact is expanding. In it, the producers offer their products without the use of synthetic chemical inputs, solving the phytosanitary problems with the use of biological or alternative control agents such as parasites, predators, entomopathogenic, alternative products, plant extracts and essential oils. These products can be considered safe to non-target organisms, but studies are needed to find these features on natural enemies and on the beneficial insects such as bees, common frequenter of cultures. In this sense, this study aims to evaluate the effects of control over reproductive quality queens of Apis mellifera L. (Hymenoptera: Apidae) Africanized. For this, it tested the action of control products on the production of A. mellifera queens, using the commercial entomopathogenic fungus Boveril® 1,0x108 (Beauveria bassiana) and aqueous extract of pomegranate (Punica granatum) at a concentration of 5% sterile distilled water with Tween (0.01%) and sterile distilled water (controls). The treatments were incorporated into a tissue type gauze, wrapped in an acrylic plate and packed inside minirrecrias type colonies for the production of queens on the day before the transfer of larvae. The next day were introduced battens with 30 domes with larvae to produce queens, so the workers have contacted the agent tested. From the emergence of all the queens, they were monitored to determine the measures of body weight (mg), length and width of wing and abdomen, length, width and height of the chest (mm) as well as the time of emergence of queens. The next step was evaluated the influence of the control agents in production creates, performing measurements of creating areas in cm2 for six straight weeks. It was found that the area creates Queens did not differ among the treatments. Histological analysis of hipofaringeanas of workers glands that came into contact with the control agents and the midgut of virgin queens were also held. Histological analysis differences were observed in the tissues when the treatments were compared with the respective controls.

Veja como evitar pragas e plantas daninhas na melancia.

O controle de predadores em plantio de melancia deve seguir o manejo integrado de pragas (MIP). No entanto, como as informações não existem ou são muito escassas para esse cultivo, a sugestão é adotar os indicadores do manejo integrado do melão, considerando-se que é a mesma família botânica da melancia. Para adoção do MIP, é fundamental o conhecimento da fenologia da cultura, a identificação e o monitoramento das populações de insetos-pragas.