Insects Associated with Yacon (smallanthus Sonchifolius Poepp & Endl) Plants in La Trinidad, Benguet

Main Article Content

Bonie S. Ligat, Sr. Gemma P. Sabas


This study was conducted to identify the different insects and other arthropods that were found on yacon (Smallanthus sonchifolius Poepp & End/) plants; to classify these arthropods; and, to determine the degree of injury inflicted by the insects on the yield of the yacon plants.

There were twenty nine (29) species of insects, 2 species of spiders and 1 specie of mites that were found on yacon plants.

The species of arthropods were classified as potential insect pests, predators, parasitoids, and visitors.

The species of chewing insects had a sound (1) to slight (3) injury while the species of sucking insects had a sound or no injury on yacon plants. Both injuries were observed on the leaves of the yacon plants.

Article Details



BALTAZAR, C. R. and SALAZAR, N. P. 1982. Philippine Insects: An Introduction. U.P. Science Education Center. U.P. Press, Quezon City. Pp.138.

COLTING, L.M, B.S. LIGAT, L.G. LIRIO, J.C. PEREZ, J.P. PABLO, 2003. Compendium of Insect Pests and Weeds Associated with Crops in the Cordillera. Cordillera Highland Agricultural resource Management (CHARM) Poject: Cor. Sto. Tomas Rd. Marcos Highway, Baguio Dairy Farm, Baguio City and Benguet State University, La Trinidad, Benguet.

CIBA- GEIGY. 1988. Brassicas. Basel, Switzerland

CSIRO. 1991. Insects of Australia. Melbourne University Press.

GRAU, A. and J. REA. 2006. Yacon (Smallanthus sonchifolius Poepp & Endl) H. Robinson retrieved July 2006 from http://www.cipotato. org/artc/artc herman n/yacon. pdf