STEM BORERS

3. Melanagromyza sojae ( 豆 秆 黑 潜 蝇 )
4-13 generations a year;
Overwinter as pupa in root stubbles and
stalks;
Eggs laid under epidemics of lead-back
near main vein on the mid-lower parts of
plants;
Main control measures include destroying
overwinter hosts and spraying insecticides
when and after adults emerge.