[Cassava Superelongation] The pamphlet describes the importance and symptoms of the disease--caused by the fungus Sphaceloma manihoticola--and strategies for its integrated management. 

Keywords: Manihot esculenta; Sphaceloma manihoticola; Disease control; Integrated control; Varieties; Disease resistance; Cultural control; Symptoms; Foliar application; Cassava; Colombia

The participation of farmers in pest problem diagnosis, identification of solutions, experimentation, monitoring and evaluation as well as dissemination of pest management information, is one of the most appropriate and effective approaches for improved farm production. 

Keywords: Phaseolus vulgaris; Pest control; Integrated control; Rapid rural appraisal; Partnerships; Diffusion of research; Beans; Participatory research; Africa

[Grub Complex in Colombia (Coleoptera: Melolonthidae): Generalities and Advances made in Identification] Poster. 

Keywords: Pest insects; Coleoptera; Scarabaeidae; Root eating insects; Identification; Melolonthidae; Colombia

Colombian agricultural researchers have released a cassava variety resistant to one species of whitefly-apparently the first variety of any food crop with resistance to this pest, which poses a global threat to many food and cash crops. The new variety, which is resistant to the species Aleurotrachelus socialis Bondar, was released as ?Nataima-31? by the Colombian Corporation for Agricultural Research (CORPOICA). It resulted from a cross between two cassava clones, one collected in Ecuador (MECU 72) and the other in Brazil (MBRA 12). The cross was made at CIAT.  

Keywords: Manihot esculenta, Cassava, Varieties, Aleurotrachelus socialis, Propagation materials, Cuttings, Site preparation, Sowing, Agronomic characters, Yields, Pest resistance, Whitefly, Colombia.

Poster. 

Keywords: Manihot esculenta; Pseudococcidae; Phenacoccus manihoti; Phenacoccus herreni; Phenacoccus maderensis; Geographical distribution; Identification; Phylogeny; Molecular techniques; RAPD; PCR; Cassava; Africa; Latin America

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