Doenças do pimentão em regiões produtoras do Equador: identificação e manejo da pata seca e ocorrência de viroses

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

Taxonomia e potencial antimicrobiano de fungos depositados no acervo de pesquisa da Central de Recursos Microbianos da UNESP

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Metabolomic evaluation of interactions in rhizosphere between Senna spectabilis and associated microorganisms

Pós-graduação em Química - IQ

Estudo químico e avaliação da atividade antimicrobiana de fungos endofíticos associados à Paepalanthus chiquitensis (eriocaulaceae) e efeitos de moduladores químicos epigenéticos no cultivo de Pochonia chlamydosporia

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

Germination, vigor and pathogen incidence in broccoli seeds treated with Carboxin + Thiram

The purpose of treating seeds chemically is to eradicate their pathogens and/or protect them against soil pathogens, mainly by germination time. However, there is little research on vegetables investigating the effect of this treatment on seed quality. Therefore, this study evaluates the effects of Carboxin + Thiram doses on germination and vigor of three lots of broccoli seeds, as well as on the incidence of fungi in treated seed. The 15 treatments were evaluated in a factorial system (3x5), with the first factor consisting of three lots of 'Avenger' broccoli seeds (lots 82744, 82745 and 82749), and the second factor consisting of five doses (0, 0.04, 0.06, 0.10 and 0.12% of a.i.) of Carboxin + Thiram fungicide (commercial name Vitavax-Thiran). The germination and seed vigor were evaluated, in addition to the presence of pathogens in seeds after treatment (blotter test). All lots showed high levels of germination and vigor. The lot 82749, however, showed higher value in plug test in substrate emergence (99%) than lot 82745 (95%). Regarding the treatment with Carboxin + Thiram, no changes in germination average (98%) and vigor were noticed (average for the first germination count, length, and dry weight of seedling, plug test at 10 days after sowing of 97%, 4.9 cm, 4.0 mg and 96%, respectively), showing that this fungicide, in the evaluated doses, does not affect the quality of broccoli seeds. As to seeds health, the pathogens Alternaria spp. and Fusarium spp. were detected, in addition to saprophytic species such as Penicillium, Aspergillus, Trichoderma, and Rhizopus. The higher incidence of Fusarium spp. was noticed in lot 82744, and the lowest in lot 82749. As to Penicillium spp., lot 82479 was the most contaminated. Regarding other fungi, the general incidence was very low and there was no difference between lots and doses used.

Biological control of the bronze bug, Thaumastocoris peregrinus, in eucalyptus plantations in Brazil

The bronze bug Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae) was detected in Brazil in 2008 and infested >180 000 ha of eucalyptus plantations in 2011. The bronze bug can cause a reduction of 10–15% in wood productivity after 2 years of heavy infestation. Although there is not an effective control method known, biological control is the main control strategy studied. An exotic egg parasitoid, Cleruchoides noackae (Hymenoptera: Mymaridae), was imported from Australia in 2012, reared in a laboratory and released in three Brazilian regions. Parasitoids were recovered at release points after 20–30 d. In 2013, preliminary evaluations demonstrated parasitoid establishment in these areas, and the parasitoid was recovered in adjacent areas after 1 year of release. Bioassays confi rmed egg parasitism of 15–20% by C. noackae. Other native natural enemies were studied. We found green lacewing Chrysoperla externa and predatory bugs Supputius cincticeps and Atopozelus opsimus preying on nymphs and/or adults of T. peregrinus. Another promising possibility is entomopathogenic fungi. Commercial formulations of Beauveria bassiana were tested with success in lab and fi eld conditions. Fusarium proliferatum and Paecilomyces cateniannulatus caused mortality of T. peregrinus in natural epizooties. After 5 years of research, it is possible to develop an integrated pest management system (IPM) for eucalyptus plantations based on biocontrol strategy for bronze bug.

Avaliação de resíduos orgânicos para o manejo de Fusariose em diferentes patossistemas

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Efeitos da estabulação sobre o trato respiratório de equinos em dois tipos diferentes de camas e a pasto

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Micotoxinas estrogênicas em águas superficiais da microbacia hidrográfica do Córrego Rico (SP): desenvolvimento de método analítico verde, ocorrência e persistência ambiental

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Manejo de transição para agricultura orgânica, sob cultivo de citros (Citrus sinensis L. Osbeck), favorece a diversidade de fungos no solo

Pós-graduação em Ciências Biológicas (Microbiologia Aplicada) - IBRC