CONTENTS

Biology, Host Range and Natural Enemies of the Coconut Spider Mite, Oligonychus velascoi Rimando

Tita L. Cayme and Dely P. Gapasin

Relationship Between Taro Feathery Mosaic Disease and Its Insect Vector, Tarophagus Proserpina Kirk

Manuel K. Palomar

Relationship Between Morphological Characteristics and Varietal Resistance of Sweet Potato to Scab Infection Caused by Sphaceloma batatas Saw

Gracia B. Bajit and Ruben M. Gapasin

Effects of Gamma Radiation on Some Morphological Characters of Sweet Potato

Nestor L. Pido and Liwayway M. Engle

Influence of Planting Date on Corn Grown in an Aquic Eutropept

Emmanuel M. Cabia and Eduardo Paningbatan

Comparative Evaluation of Traditional Methods and Recommended Practice of Planting Sweet Potato

Paz Saladaga-Eronico and Rodolfo G. Escalada

Effects of Nitrogen Level and Row Spacing on the Growth and Yield of Flint Corn

Berta Catingan-Ratilla and Victor P. Briones