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Control strategies for cassava mealybug Phenacoccus manihoti

By: Contributor(s): Material type: ArticleArticleLanguage: English Description: p. 27-31Subject(s): LOC classification:
  • 28345
 In: In: NAFPP National Cassava Workshop (4, 1980, Umudike, Nigeria). ProceedingsSummary: Se discuten brevemente las estrategias de manejo de plagas que se pueden utilizar solas o en conjunto, para el control de Phenacoccus manihoti: 1) exclusion de la plaga mediante inmersion de las estacas de yuca durante 5 min en dimetoato o fosfamidon; 2) erradicacion, preferiblemente mediante aspersiones de insecticidas (dimetoato, fosfamidon, monocrotofos); 3) control cultural mediante el uso de material de siembra sano adaptado, siembra temprana al comienzo de las lluvias y metodos apropiados de conservacion de la fertilidad y humedad del suelo; 4) control biologico, con la cria y diseminacion masiva de los depredadores identificados, Exochomus flavipes e Hyperaspis pumila; y 5) control quimico, especialmente en el nivel de umbral critico de la plaga (dimetoato y fosfamidon). Se indican las desventajas de esta ultima estrategia. (CIAT)Summary: Integrated pest management strategies, which may be used alone or together, to control Phenacoccus manihoti in Nigeria are briefly discussed: (1) exclusion of pest through cassava cutting dips for 5 min in dimethoate or phosphamidon; (2) eradication, preferably through insecticide sprays (dimethoate, phosphamidon, monocrotophos); (3) cultural control through the use of adapted healthy planting material, early planting at the onset of rains, and proper soil fertility and soil moisture conservation methods; (4) biological control, hopefully through mass rearing and dissemination of the identified predators Exochomus flavipes and Hyperaspis pumila; and (5) chemical control, especially at the critical threshold level of the pest (dimethoate and phosphamidon). The disadvantages of this latter strategy are indicated. (CIAT)
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Se discuten brevemente las estrategias de manejo de plagas que se pueden utilizar solas o en conjunto, para el control de Phenacoccus manihoti: 1) exclusion de la plaga mediante inmersion de las estacas de yuca durante 5 min en dimetoato o fosfamidon; 2) erradicacion, preferiblemente mediante aspersiones de insecticidas (dimetoato, fosfamidon, monocrotofos); 3) control cultural mediante el uso de material de siembra sano adaptado, siembra temprana al comienzo de las lluvias y metodos apropiados de conservacion de la fertilidad y humedad del suelo; 4) control biologico, con la cria y diseminacion masiva de los depredadores identificados, Exochomus flavipes e Hyperaspis pumila; y 5) control quimico, especialmente en el nivel de umbral critico de la plaga (dimetoato y fosfamidon). Se indican las desventajas de esta ultima estrategia. (CIAT) spa

Integrated pest management strategies, which may be used alone or together, to control Phenacoccus manihoti in Nigeria are briefly discussed: (1) exclusion of pest through cassava cutting dips for 5 min in dimethoate or phosphamidon; (2) eradication, preferably through insecticide sprays (dimethoate, phosphamidon, monocrotophos); (3) cultural control through the use of adapted healthy planting material, early planting at the onset of rains, and proper soil fertility and soil moisture conservation methods; (4) biological control, hopefully through mass rearing and dissemination of the identified predators Exochomus flavipes and Hyperaspis pumila; and (5) chemical control, especially at the critical threshold level of the pest (dimethoate and phosphamidon). The disadvantages of this latter strategy are indicated. (CIAT) eng

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