%0 Journal Article
%T Insecticied effect of silver and zinc nanoparticles against Aphis nerii Boyer of fonscolombe (Hemiptera: Aphididae) Efecto insecticida de nanopart¨ªculas de plata y zinc contra Aphis nerii Boyer de Fonscolombe (Hemiptera: Aphididae)
%A Mohammad Rouhani
%A Mohammad Amin Samih
%A Salma Kalantari
%J Chilean Journal of Agricultural Research
%D 2012
%I 
%X The oleander aphid, Aphis nerii Boyer de Fonscolombe, is one of the common pests of ornamental plants in the families of Apocynaceae and Sclepiadaceae and distributed throughout the world, which has been responsible for the mortality of a large number of oleander (Nerium oleander L.) shrubs each year. In this research, the insecticidal activity of Ag nanoparticles against the A. nerii was investigated. Nanoparticles of Ag and Ag-Zn were synthesized through a solvothermal method, and using them, insecticidal solutions of different concentrations were prepared and tested on A. nerii. For comparison purposes, imidacloprid was also used as a conventional insecticide. In the experiments, the LC50 value for imidacloprid, Ag and Ag-Zn nanoparticles were calculated to be 0.13 ¦ÌL mL-1, 424.67 mg mL-1, and 539.46 mg mL-1, respectively. The result showed that Ag nanoparticles can be used as a valuable tool in pest management programs of A. nerii. Additionally, the study showed that imidacloprid at 1 ¦ÌL mL-1 and nanoparticles at 700 mg mL-1 had the highest insect mortality effect. El ¨¢fido de la adelfa, Aphis nerii Boyer de Fonscolombe, es una de las plagas m¨¢s comunes de plantas ornamentales en las familias Apocynaceae y Sclepiadaceae y tiene distribuci¨®n mundial, ha sido responsable de la mortalidad de un gran n¨²mero de arbustos de adelfa (Nerium oleander L.) cada ano. En este estudio se investig¨® la actividad insecticida de nanopart¨ªculas de Ag contra A. nerii. Nanopart¨ªculas de Ag y Ag-Zn fueron sintetizadas a trav¨¦s de un m¨¦todo solvot¨¦rmico, y con ellas se prepararon soluciones insecticidas de diferentes concentraciones y se probaron contra A. nerii. Con fines de comparaci¨®n, tambi¨¦n se us¨® imidacloprid como un insecticida convencional. En los experimentos, el valor LC50 para imidacloprid, nanopart¨ªculas de Ag y Ag-Zn se calcul¨® como 0.13 ¦ÌL mL-1, 424.67 mg mL-1, y 539.46 mg mL-1, respectivamente. El resultado mostr¨® que nanopart¨ªculas de Ag pueden ser usadas como una herramienta valiosa en programas de manejo de plagas de A. nerii. Adicionalmente, el estudio mostr¨® que 1 ¦ÌL mL1 imidacloprid y 700 mg mL-1 de nanopart¨ªculas tuvieron el mayor efecto en mortalidad de los insectos.
%K imidacloprid
%K ¨¢fido de la adelfa
%K Nerium oleander
%K m¨¦todo solvot¨¦rmico
%K Imidacloprid
%K oleander aphid
%K Nerium oleander
%K solvothermal method
%U http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400020