Sweet Corn IPM Newsletter  No. 5- July 30, 2021 FALL ARMYWORM & CORN BORER THREATEN SILKING CORN   Corn Earworm Numbers Low, But Western Bean Cutworm Numbers Higher   SITUATION With corn harvest getting into full swing in Southern Maine, many fields received another soaking this week.  Nitrogen deficiency, indicated by yellowing of the lower […]

Sweet Corn IPM Newsletter No. 4  – July 23, 2021 Click on photos to enlarge. PEST PRESSURE INCREASING FOR SILKING CORN Corn Earworm, Fall Armyworm & European Corn Borer Numbers Higher SITUATION Early corn harvest is underway in Southern Maine.  Recent rains have made access to some fields difficult as we experience a second mud […]

Sweet Corn IPM Newsletter No. 3- July 16, 2021 Click on photos to enlarge. CORN EARWORM, FALL ARMYWORM,  CORN BORER THREAT Early Silking Fields May Require Protection SITUATION Some very early corn is being harvested in the southern part of the state,  and it looks as though the season will be in full swing in […]

Sweet Corn IPM Newsletter- No. 2- July 9, 2021 Click on photos to enlarge. EARLY TROPICAL STORM BRINGS CORN EARWORM THREAT Early Silking Fields May Require Protection SITUATION The hot weather, which pushed corn development into very early silking, appears to be over, at least for now, and a tropical storm moving up the East […]

Sweet Corn IPM Newsletter- No. 1- June 25, 2021 Click on photos to enlarge 2021 SWEET CORN PEST SEASON BEGINS! European Corn Borer, Corn Earworm May Be Active in Early Fields The 2021 University of Maine Cooperative Extension Integrated Pest Management (IPM) program for sweet corn is getting underway. We continue to follow pandemic protocols, […]

Last Issue for 2020 Click on photos to enlarge. Sweet Corn IPM Newsletter No. 11 – September 11, 2020 EARWORM, ARMYWORM COUNTS HIGHER TO END THE SEASON Fall Armyworm Still Threatens Late Maturing Corn in Many Fields This will be the final issue of the Sweet Corn IPM Newsletter for the 2020 season. I would […]

Sweet Corn IPM Newsletter No. 10 – September 4, 2020 PEST NUMBERS MODERATE AS SEASON WINDS DOWN Fall Armyworm Still Threatens Late Maturing Corn in Many Fields   SITUATION Much needed showers offered some relief to dry fields this week. Many fields that planted for the Labor Day harvest matured earlier than expected, so supply […]

Sweet Corn IPM Newsletter No. 9- August 28, 2020 COOL WEATHER BRINGS PEST NUMBERS DOWN Fresh Silking Corn Still Under Threat From Earworm, Armyworm SITUATION Many sites are still very dry, while others received some showers this week, along with strong winds that caused lodging in some late cornfields. Cool night temperatures and little weather […]

Sweet Corn IPM Newsletter  No. 8   – August 21, 2020 Click on photos to enlarge. CORN EARWORM COUNTS LOWER, STILL A THREAT TO SILKING CORN Fall Armyworm Counts Remain High, Despite Cooler Night Temperatures   SITUATION Another dry week for most fields. Irrigation has helped  keep corn quality high, despite the lack of rain. Cooler […]

Sweet Corn IPM Newsletter No. 7- August 14, 2020 Click on photos to enlarge. HIGHEST CORN EARWORM, FALL ARMYWORM NUMBERS THIS SEASON But Counts Variable Around the State; North & West See Mostly Lower Numbers   SITUATION A very hot, dry week has advanced later corn plantings, resulting in earlier than expected maturity for some […]