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Outbreak of stem bleeding in coconuts caused by Thielaviopsis paradoxa in Sergipe, Brazil
In February of 2004, about 50 coconut plants were found bearing symptoms of a disease not yet recorded in Brazil, and a fungus was isolated from diseased tissues and identified as Thielaviopsis paradoxa.
THE INFLUENCE OF VAPOUR PRESSURE DEFICIT ON LEAF WATER RELATIONS OF COCOS NUCIFERA IN NORTHEAST BRAZIL
SUMMARY Daily courses of leaf gas exchange and leaf water potential (Ψleaf) of green dwarf coconut palm (Cocos nucifera) were measured in irrigated plantations on the wet coastal plateau and in a dry…
Cotesia flavipes Cameron (Hymenoptera: Braconidae) alters the nutrients in the hemolymph, fat body, and cytochemistry of Diatraea flavipennella Box (Lepidoptera: Crambidae) hemocytes
- E. M. Passos, V. Wanderley-Teixeira, A. Porto, E. Marques, Á. Teixeira, Flávio de Oliveira Silva
- BiologySemina: Ciências Agrárias
- 15 April 2019
The presence of the parasitoid leads to different changes in D. flavipennella hemolymph and fat body and alters the cytochemistry of hemocytes causing a significant reduction in the reserve tissue.
Occurrence in Brazil of Haplaxius crudus (Hemiptera: Cixiidae), Vector of Coconut Lethal Yellowing
The first report of vector H. crudus was found in coconut plantations of Brazilian Green Dwarf Jiqui, accounting for 87% of the individuals captured, and this knowledge could be used in contingency measures in the case of LY be introduced in the country.
Rainfall and Coconut Accession Explain the Composition and Abundance of the Community of Potential Auchenorrhyncha Phytoplasma Vectors in Brazil
It is concluded that dwarf coconut host several Auchenorrhyncha species potential phytoplasma vectors, and coconut accessions could be exploited in breeding programs aiming at prevention of LY.
Entomopathogenic Fungi Biomass Production and Extracellular Biosynthesis of Silver Nanoparticles for Bioinsecticide Action
- T. S. Santos, E. M. Passos, Matheus Seabra, E. Souto, P. Severino, M. C. Mendonça
- 10 March 2021
AgNPs with entomopathogenic fungus extract can produce an innovative bioinsecticide product using a green production process and showed a significant variation in pathogenicity, virulence, and biomass production among the evaluated fungi isolates; however, only one of the isolates did not have the potential to synthesize silver nanoparticles.
A new species of Oecleus Stål (Hemiptera: Fulgoroidea: Cixiidae) from coconut in Brazil.
This is the first report of the genus Oecleus in Brazil and sequence data from the mitochondrial cytochrome c oxidase subunit I (COI) barcoding region was obtained and accessioned into GenBank.
Effects of entomopathogenic fungi on different developmental stages of Cotesia flavipes (Cam.) a parasitoid of Diatraea flavipennella (Box) (Lepidoptera: Crambidae)
- C. C. M. Silva, E. Marques, J. V. Oliveira, A. C. Albuquerque, E. M. Passos, J. Guimarães
- 29 February 2016
No manejo integrado das brocas da cana-de-acucar Diatraea spp, o controle biologico com o parasitoide Cotesia flavipes (Cam.) e um dos principais componentes foi avaliar o efeito dos fungos M. anisopliae e B. flavipes em Diotraea flavipennella.
The phenology of dwarf coconut cultivars in north of sergipe coastal tablelands
Results have shown the BGDJ is the most adaptive cultivar to Plato de Neopolis-SE conditions, showing superiority in relation to reproductive characters such as NFFI and NFr6.