Martin J. Castillo

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Since its discovery in 2008, the pestiferous Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Liviidae), has become widely established in residential citrus trees throughout southern California. In 2011, Tamarixia radiata (Waterston) (Hymenoptera: Eulophidae), a host-specific parasitoid of D. citri, sourced from Punjab Pakistan, was introduced(More)
Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Liviidae), is an invasive citrus pest in California that vectors a bacterium that causes the deadly citrus disease huanglongbing. From 2014–2015, 116 experimental D. citri cohorts were monitored to determine survivorship, life table parameters, and marginal rates of mortality of immature D. citri(More)
A síntese de materiais para retenção e/ou pré-concentração de espécies de interesse clínico e ambiental, como íons metálicos, constitui uma importante área de pesquisa atual. Neste trabalho, descrevemos a síntese de diferentes suportes sólidos de antraceno sulfeto de fosfina para préconcentração de Cu(II) e Pb(II). As propriedades sensoras destes materiais(More)
The Sm-2Fe molten alloy with 1:2 molar ratio was unidirectionally solidified in both microgravity and normal gravity in concurrence with a magnetic flux (0-0.12 T). The compound SmFe2 was produced by the unidirectional solidification in microgravity with a magnetic flux of 0T and exhibited a lamellar microstructure. The average lamellar thickness was 30 mum(More)
Porous bioactive materials with constituents such as CaO, P2O5, SiO2, MgO, K2O, Na2O implanted in bone can activate a biologic response to enhance bone healing. These biomaterials are currently formed utilizing wet chemistry, plasma spray, D-gun, sintering, and diffusion bond techniques. This work investigates the use of self propagating high temperature(More)
Oligonychus perseae (Acari: Tetranychidae) is an important foliar spider mite pest of ‘Hass’ avocados in several commercial production areas of the world. In California (USA), O. perseae densities in orchards can exceed more than 100 mites per leaf and this makes enumerative counting prohibitive for field sampling. In this study, partial enumerative mite(More)
A new approach on the use of mass spectrometry direct-insertion and a quadrupole detector for analysis of organic compounds supported in solid phase has been developed. This is a simple and efficient method based on cleavage due to the thermal-instability of the benzylic group of most commercial resins. The cleavage of supported compounds takes place in the(More)
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