Some Studies on the Control of Corn Borer in Thailand1

Abstract

The corn borer, Pyrausta salentialis Snell, is one of the most damaging pests in areas where corn has been grown for several years in Thailand. It is also a well known pest of corn in China, Malaya and the Philippines. The borer is a particularly difficult insect to control, mainly because of the protection afforded by stem of the host-plant to the injurious stages. In fields where the pest is well established and abundant such as in many districts of Rayong, Cholburi, Kanchanaburi, Saraburi and nakorn - Sawan provinces, more than 90% of corn may be damaged. Heavy infestations of the borer in these areas have indicated the need for more information on the biology, habits, and a regular program for effective control measures of this pest.