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 […]

Sweet Corn IPM Newsletter No. 6     – August 7, 2020 Click on photos to enlarge. CORN EARWORM, FALL ARMYWORM NUMBERS HIGHER Moth Counts Rise Significantly in Most Fields Following Tropical Storm     SITUATION Corn harvest is underway in earnest around most of the state.  Growing conditions continue to be good.  The recent tropical storm packed […]

Sweet Corn IPM Newsletter No. 5- July 31, 2020 Click on photos to enlarge FALL ARMYWORM COUNTS RISING Most Silking Corn Fields Require Protection    SITUATION A heat wave has kept corn development at a speedy pace, especially where irrigation is available. Some fields are looking dry again, where showers have been sparse. A tropical […]

Sweet Corn IPM Newsletter   No. 4- July 24, 2020 Click on photos to enlarge. EARLY CORN HARVEST UNDERWAY Corn Earworm and Fall Armyworm Numbers Higher in Most Locations SITUATION: Corn harvest has started in southern Maine in early planted fields advanced by plastic mulch or rowcovers.  Hot weather and timely rain showers have kept corn […]

Sweet Corn IPM Newsletter No. 3 – July 20, 2020 Click on photos to enlarge. PEST PRESSURE INCREASES FOR SILKING CORN Corn Earworm and Fall Armyworm Numbers Higher at Most Sites SITUATION With favorable weather in much of the state it continues to push corn development, with more fields coming into silk.  However, some sites […]

Sweet Corn IPM Newsletter No. 2 –  July 10, 2020 Click on photos to enlarge. CORN EARWORM, FALL ARMYWORM  THREATEN EARLY CORN Early-Planted Fields Now Silking May Require Protection   SITUATION Recent warm weather and rain showers have advanced corn development rapidly in much of the state. Earliest planted corn with plastic mulch or rowcovers […]