Food security and biodiversity conservation are threatened by the emergence and spread of pest and pathogens, and thus there is a current need to develop pest management strategies that are sustainable and friendly to the environment and human health. Here, we performed laboratory and field bioassays to evaluate the insecticidal effects of several concentrations of capsaicinoids and glucosinolates (separately and mixed) on an aphid pest (Aphis cytisorum). The capsaicinoids were extracted from the fruits of Capsicum chinense and glucosinolates from the tubers of native Andean crop Tropaeolum tuberosum. We found that both capsaicinoids and glucosinolates have a biocidal effect on A. cytisorum, acting within a fairly short time. Under laboratory conditions, the toxicity of the compounds increased in relation to their concentrations, causing a high percentage of mortality (83–99%) when the...

En el presente trabajo se han realizado pruebas de durabilidad natural de las maderas de Pinus oocarpa Schiede ex SChltdl y Pinus tecunumanii Eguiluz & J.P. Perry, proveniente de las plantaciones de la Estación Experimental de Oxapampa-UNCP, ubicada en San Alberto, Oxapampa. Para el desarrollo del estudio, se tomó como referencia la metodología de la Norma ASTM D 2017: “Standard Method of Accelerated Laboratory Test of Natural Decay Resistance of Woods”; empleando para ello cultivos de los hongos xilófagos Pycnoporus sanguineus (L) Murril y Schizophyllum commune Fries, causantes de pudrición blanca. Los resultados obtenidos en base a la resistencia a la pudrición, según la tabla de interpretación de resultados de la Norma ASTM D 2017, corresponden a la clase B: “Madera Resistente” para Pinus oocarpa; y a la clase C: “Madera Moderadamente Resistente” para Pinus tec...