A5004053282- Phytoplasmas and Hemiptera pathogens
- Insect-Plant Interactions and Control
- Insect symbiosis and bacterial influences
- Plant Pathogens and Fungal Diseases
- Plant Physiology and Cultivation Studies
- Entomopathogenic Microorganisms in Pest Control
- Plant Virus Research Studies
- Banana Cultivation and Research
- Hemiptera Insect Studies
- Leaf Properties and Growth Measurement
- Plant and soil sciences
- Psychology and Mental Health
- Cocoa and Sweet Potato Agronomy
- Research on scale insects
Fundo de Defesa da Citricultura
2018-2023
Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina
2016
Universidade de São Paulo
2016
Methodist University of Piracicaba
2015
Although 'Candidatus Liberibacter asiaticus' (Las) is a major pathogen associated with citrus huanglongbing (HLB), some characteristics of transmission by the psyllid vector Diaphorina citri are not fully understood. We examined latent period and persistence Las D. in series experiments at 25°C, which third-instar nymphs 1-week-old adults were confined on infected for an acquisition access (AAP), submitted to sequential inoculation periods (IAPs) healthy seedlings. The median (LP50, i.e.,...
Novel, suitable and sustainable alternative control tactics that have the potential to reduce migration of Diaphorina citri into commercial citrus orchards are essential improve management huanglongbing (HLB). In this study, effect orange jasmine (Murraya paniculata) as a border trap crop on psyllid settlement dispersal was assessed in orchards. Furthermore, volatile emission profiles relative attractiveness both sweet (Citrus × aurantium L., syn. Citrus sinensis (L.) Osbeck) nursery flushes...
Abstract Studies designed to measure dispersal capacity of Diaphorina citri Kuwayama (Hemiptera: Liviidae) are needed provide the epidemiological knowledge necessary improve management citrus huanglongbing. In this study, a mark–release–recapture technique was used investigate whether 1) host or non‐host plants D. can act as barriers for dispersing insects and 2) presence absence young leaves influence movement towards plants. The experimental field consisted four circular adjacent areas...
Abstract Environmental factors that influence flight activity of Diaphorina citri Kuwayama (Hemiptera: Liviidae) may have implications for Huanglongbing spread and management. In this work, four studies were conducted to evaluate the effect environmental conditions on D. take‐off. first, insects transferred sweet orange seedlings confined inside an acrylic cage verify take‐off periodicity process. second, temperature threshold was estimated by recording number initiated from a platform when...
Abstract BACKGROUND Alternative methods that have the potential to reduce entry of Diaphorina citri Kuwayama (Hemiptera: Liviidae), major citrus pest worldwide, into commercial groves could be a viable approach for huanglongbing management. Kaolin is an aluminum silicate when sprayed on plants forms white particle film interferes with host recognition by insects. orients towards visual and olfactory cues. The purpose study was determine effect processed kaolin D. settling (no‐choice) probing...
Abstract Seasonality often influences multiple aspects of vector‐borne plant diseases. With respect to the management disease vectors, an understanding factors driving seasonal changes in vector flight activity may improve outcomes by facilitating more proactive application control measures. One most challenging issues for citrus Huanglongbing is forecast when primary spread bacteriliferous Diaphorina citri will occur. We monitored temporal patterns immigrating psyllids, using upwards 1,200...
Abstract BACKGROUND Processed kaolin is a promising tactic that can be utilized for managing Diaphorina citri Kuwayama infestation. However, the frequency of application to protect citrus trees during flushing remains undetermined. The objective this study was ascertain (2%) required reduce D. infestation and dispersal in orchards measure spectral reflectance kaolin‐sprayed leaves. RESULTS Trees sprayed with at 7‐ 14‐day intervals showed an 80% psyllid reduction compared untreated trees. In...