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First report of Diaphorina citri (Hemiptera: Psyllidae) in Costa Rica
(2005-09)
The Asian psyllid was reported in Rio de Janeiro, Brazil, by Costa Lima (1942) and by Catling (1970). In June 1998, the insect was detected in Florida and by September 2000 this pest had spread to 31 Florida counties ...
Comparative Analysis of Three Different Total Nucleic Acid Extraction Protocols for the Diagnosis of Geminiviruses in Squash (Cucurbita moschata)
(2012)
Squash (Cucurbita moschata) is one of the most important crops in tropical countries. Geminiviruses are an important group of plant pathogens. In 2002 a new begomovirus was reported to naturally infect squash and some other ...
First Report of Tomato yellow leaf curl virus in Tomato in Costa Rica
(2014)
One of the most important invasive and harmful members of the genus Begomovirus (family Geminiviridae) is the monopartite Tomato yellow leaf curl virus (TYLCV), which is widespread over the world associated with tomato ...
Chapter 6: Founder variations in isolated populations
(2020)
Isolated populations, also called population isolates and genetic isolates, present several characteristic features that make them useful in the study of the genetic basis of both Mendelian and complex disorders. The ...
Ultrastructural and microbial analyses of cellulose degradation in leaf-cutter ant colonies
(2017)
Leaf-cutter ants (Atta and Acromyrmex) use fresh leaves to cultivate a mutualistic fungus (Leucoagaricus gongylophorus) for food in underground gardens. A new ant queen propagates the cultivar by taking a small fragment ...
A reliable bioassay procedure to evaluate per os toxicity of Bacillus thuringiensis strains against the rice delphacid, Tagosodes orizicolus (Homoptera: Delphacidae)
(Universidad de Costa Rica, 2007)
A reliable bioassay procedure was developed to test ingested Bacillus thuringiensis (Bt) toxins on the rice delphacid Tagosodes orizicolus. Initially, several colonies were established under greenhouse conditions, using ...
Sobre el genoma humano, la medicina personalizada y el sistema de seguridad social
(2016)
La promesa del proyecto del genoma humano (PGH) fue que iba a transformar radicalmente la práctica médica. Cambiaría el paradigma de “diagnóstico y tratamiento” por el de “predicción de riesgo y prevención”. Hace más de ...
Soybean protease inhibitors increase Bacillus thuringiensis subs. israelensis toxicity against Hypothenemus hampei
(2020)
The coffee berry borer (Hypothenemus hampei Ferrari, CBB) is one of the most devastating pests on coffee plantations around the world. Although CBB is susceptible to the effect of δ–endotoxins ...
External Morphology of Tagosodes orizicolus (Homoptera: Delphacidae) Revealed by Scanning Electron Microscopy
(2001)
A comprehensive analysis of the ultrastructure of the delphacid rice pest Tagosodes
orizicolus (Muir) was undertaken using scanning electron microscopy to resolve taxonomic problems in the distinction of females and nymphs ...
Evidence for Widespread Associations between Neotropical Hymenopteran Insects and Actinobacteria
(2017)
The evolutionary success of hymenopteran insects has been associated with complex physiological and behavioral defense mechanisms against pathogens and parasites. Among these strategies are symbiotic associations between ...