Observaciones sobre el gusano cachon de la yuca Erynnyis ello (L) y algunas recomendaciones para su manejo (CIAT Septiembre, 1978 para el dia de campo en caicedonia)
Material type: TextLanguage: Spanish Publication details: Cali, CO Centro Internacional de Agricultura Tropical (CIAT) 1978Description: 6 pSubject(s):- Manihot esculenta
- Bacillus thuringiensis
- Biological control
- Colombia
- Erinnyis ello
- PREDATORS AND PARASITES
- PREDATORS AND PARASITES
- TRICHOGRAMMA MINUTUM
- Injurious insects
- Noxious animals
- Pests
- South America
- Starch crops
- Yuca
- Cassava
- Brochures
- Folletos
- CIAT Editor
- Cultivo
- Crop husbandry
- Other Publications
- 1492
Item type | Current library | Collection | Call number | Status | Date due | Barcode | Item holds | |
---|---|---|---|---|---|---|---|---|
Online Document | CIAT Library Web | Electronic Document | 1492 (Browse shelf(Opens below)) | Not For Loan (Restricted Access) | ||||
Books | CIAT Library CIAT Publications | CIAT Publications | 1492 (Browse shelf(Opens below)) | Available |
Se recomienda el uso de Bacillus thuringiensis para el control biologico del gusano cachon (Erinnyis ello), en dosis de 400-500 g/ha para aplicaciones aereas y de 2-3 g/l de agua para aplicaciones terrestres, adicionando un surfactante con cualidades adherentes. Cuando se prevee un aumento en la poblacion del gusano debido al incremento en el no. de posturas, una buena medida de control consiste en liberar el parasito de huevos Trichogramma spp. en los campos de yuca: T. australicum ha mostrado ser el mas efectivo. Otras practicas efectivas para reducir las poblaciones del gusano cachon son el establecimiento de colonias de Polistes, un predator de larvas, en ranchos de guaduas y hojas de palmiche de 1,80-200 m de altura, asi como la recoleccion de pupas de Erinnyis bajo los residuos vegetales que rodean la planta. Se explican e ilustran el ciclo biologico del gusano cachon y la diferenciacion sexual del gusano en el estadio pupal. (CIAT)
For the biological control of Ernnyis ello, an application of Bacillus thuringiensis (400-500 g/ha for aerial applications or 2-3 g/l of water for land applications), together with a surfactant with adherent properties, is recommended. When a hornworm population increase is foreseen due to the increase in the no. of eggs laid, another good control measure is the release of the egg parasite Trichogramma spp. in the cassava fields; T. australicum has been found to be the most effective. Other effective practices for reducing the hornworm populations are the establishment of colonies of Polistes, a predator of the larvae, in bamboo shelters 1.8-2.0 m high, covered with palm leaves, and the collection of the Erinnyis pupae found in the debris around the plants. The biological cycle of the hornworm and the sexual differentiation of the pupal stage are explained and illustrated. (CIAT)