The tiger moths, Spilosoma menthastri (Esper), Spilarctia subcarnea (Walker), are important pests of the maize and Soybean in the part regrin of Jilin province. Yellow (or red)-belly black datled arctud (Spilosoma mentharstri) and white tiger moth (Spilarcatia subcarnea) are predominant speeies, There are two generation in a year in Jilin province The larvae hurronl into soil 3-5 cm in deep and Other place whone winter in passed, in pupa state. The Ist-brood causes most ingure to crops in June.
The young larvae are gregarious in the initial stage but sequently disperse. The eggs are laid in masse on the underside of leaves and hatch after 5～7 days In general the larva has six instar,
Chemical control or artificial catch control provided good effection. the larvae maybe hille by spraying with phoxim Dichlorvos, Sumicidin, Decis,Trichlorfon etc. Best control is given by Spraying with Sumicidin and decis.