As of July 7, we have tested a total of 822 corn earworm moths in our pyrethroid resistance monitoring program. The attached graph (click “More”) shows data from 2010 and 2011. This week’s mean survivorship was 33%, down slightly from last week’s 41%. As Dr. Herbert mentioned in last week’s advisory, these levels of moth survivorship are high and may indicate a potential for less-than-satisfactory levels of control with pyrethroid insecticides. We will continue our vial tests to monitor resistance potential in this pest. Additional information: 2010-2011-graphs-pdf