Biologia y ecologia del piojo harinoso de la yuca Phenacoccus gossypii Townsend y Cockerell (Homoptera: Pseudococcidae)

By:

VARELA, A.M

Contributor(s):

Material type: Article

ArticleLanguage: Spanish Description: 5(1/2):9-15Subject(s): LOC classification:

14149

In: Revista Colombiana de EntomologiaSummary: Se reporta por primera vez en Colombia la presencia de Phenacoccus manihoti, encontrado en los Llanos Orientales. Se estudiaron algunos aspectos de la biologia y ecologia del piojo harinoso mejicano de la yuca, P. gossypii. El mejor metodo para mantener la colonia es la cria sobre papa desarrollada en poca luz. Se estudio comparativamente el ciclo de vida en 5 var. de yuca y se encontro una diferencia significativa entre algunas en cuanto a la duracion total, la duracion/instar y al incremento de tamano/instar. Como base para el programa de control biologico, se hizo una busqueda de los enemigos naturales del piojo. Entre el gran complejo de parasitos y predatores que se encontro, el parasito mas comun fue Anagyrus sp. (Encyrtidae), y entre los predatores, los coccinellidos Scymnus sp. y Coccidophilus sp., los dipteros Ocyptamus stenogaster y Kalodiplosis coccidarum, ademas del neuroptero Chrysopa sp. (RA-CIAT)Summary: The species Phenacoccus manihoti found in the llanos Orientales, is reported for the 1st. time in Colombia. Some aspects of the ecology and biology of the Mexican mealybug, P. gossypii, was studied. The best method to maintain a colony of this mealybug is to raise it on potato developed under low light. The life cycle was studied on 5 cassava var. and differences were found in total developmental time, developmental time/instar, and size increase/instar. A search for natural enemies of the mealybug was done as a basis for a biological control program. Among the many parasites and predators found the most common parasite was Anagyrus sp. (Encyrtidae), and the more common predators were Coccinellidae Scymnus sp. and Coccidophilus sp., the Diptera Ocyptamus stenogaster and Kalodiplosis coccidarum, and the Neuroptera Chrysopa sp. (AS)

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Holdings
Item type	Current library	Collection	Call number	Copy number	Status	Date due	Barcode	Item holds
Journal Article	CIAT Library Document collection CINFOS	Document Collection CINFOS	14149 (Browse shelf(Opens below))	c.1	Short Loan		100072718

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Se reporta por primera vez en Colombia la presencia de Phenacoccus manihoti, encontrado en los Llanos Orientales. Se estudiaron algunos aspectos de la biologia y ecologia del piojo harinoso mejicano de la yuca, P. gossypii. El mejor metodo para mantener la colonia es la cria sobre papa desarrollada en poca luz. Se estudio comparativamente el ciclo de vida en 5 var. de yuca y se encontro una diferencia significativa entre algunas en cuanto a la duracion total, la duracion/instar y al incremento de tamano/instar. Como base para el programa de control biologico, se hizo una busqueda de los enemigos naturales del piojo. Entre el gran complejo de parasitos y predatores que se encontro, el parasito mas comun fue Anagyrus sp. (Encyrtidae), y entre los predatores, los coccinellidos Scymnus sp. y Coccidophilus sp., los dipteros Ocyptamus stenogaster y Kalodiplosis coccidarum, ademas del neuroptero Chrysopa sp. (RA-CIAT) spa

The species Phenacoccus manihoti found in the llanos Orientales, is reported for the 1st. time in Colombia. Some aspects of the ecology and biology of the Mexican mealybug, P. gossypii, was studied. The best method to maintain a colony of this mealybug is to raise it on potato developed under low light. The life cycle was studied on 5 cassava var. and differences were found in total developmental time, developmental time/instar, and size increase/instar. A search for natural enemies of the mealybug was done as a basis for a biological control program. Among the many parasites and predators found the most common parasite was Anagyrus sp. (Encyrtidae), and the more common predators were Coccinellidae Scymnus sp. and Coccidophilus sp., the Diptera Ocyptamus stenogaster and Kalodiplosis coccidarum, and the Neuroptera Chrysopa sp. (AS) eng