Cotyledon damage (old)
Old feeding (more than 2 days) by bean leaf beetles is brown and calloused. (Marlin E. Rice)
This image appears in the following article:
Cotyledon damage (old)
[1]
Source URL:
http://www.ipm.iastate.edu/ipm/icm//ipm/icm/node/493
Links:
[1] http://www.ipm.iastate.edu/ipm/icm/2006/5-22/beanleafbeetle.html
