PROPIEDADES INSECTICIDAS DEL POLVO DE LAURELIA SEMPERVIRENS L. PARA EL CONTROL DE SITOPHILUS ZEAMAIS MOTSCHULSKY (COLEOPTERA: CURCULIONIDAE)

Sitophilus zeamais is a key pest of stored cereals. The insecticidal properties of Laurelia sempervirens powder against S. zeamais were assessed in laboratory. The variable evaluated were mortality of adult insects by contact and fumigant toxicity, mortality of immature insects by contact toxicity,...

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Detalhes bibliográficos
Autores: TORRES, CRISTIAN, SILVA, GONZALO, TAPIA, MARITZA, URBINA, ANGELICA, RODRIGUEZ, J. CONCEPCION, FIGUEROA, INES, SANTILLAN ORTEGA, CANDELARIO, AGUILAR MEDEL, SOTERO, ROBLES BERMUDEZ, AGUSTIN, LAGUNES TEJEDA, ANGEL
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:México
Recursos:Universidad Autónoma de Nayarit
Repositorio:Repositorio Institucional Aramara de la UAN
Idioma:español
OAI Identifier:oai:dspace.uan.mx:123456789/233
Acesso em linha:http://dspace.uan.mx:8080/jspui/handle/123456789/233
Access Level:acceso abierto
Palavra-chave:bioinsecticide
stored grain
pest
organic control
bioinsecticida
granos almacenados
plagas
control orgánico
INSECTICIDAS [310107]
Descrição
Resumo:Sitophilus zeamais is a key pest of stored cereals. The insecticidal properties of Laurelia sempervirens powder against S. zeamais were assessed in laboratory. The variable evaluated were mortality of adult insects by contact and fumigant toxicity, mortality of immature insects by contact toxicity, residual effect of powder stored under environmental or refrigerated conditions, adult insect emergence (F1), repellency and weight reduction and germination of maize. The concentrations evaluated were 0, 0.25, 0.5, 1.0, 2.0 and 4.0% and the experimental design was completely randomly. In contact toxicity bioassay all treatments showed mortality over 90% while fumigant activity did not exceed 40%. The F1 only was registered in treatment of 0.25% and control showing all other treatments 0%. In immature control bioassay all treatments exhibited statistical differences with control. The storage of powder under refrigerated conditions not improved the residual effect. All concentrations of powder assessed showed repellence. Germination and grain weight loss of maize seeds not showed significant differences with control. We concluded that L. sempervirens has promissory perspectives to stored grain pests control.

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