CORN EARWORM THREAT INCREASING Early Corn Harvest Underway in Southern Maine SITUATION Corn harvest is underway in early fields planted under plastic mulch. Continued rain and wet ground has made pesticide and fertilizer applications difficult in many fields. Insect pest populations are generally higher this week, increasing the threat to silking corn. The distribution of […]
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CORN EARWORM NUMBERS LOWER Fall Armyworm Moths and Larvae Found in Several Fields SITUATION Early planted corn is maturing quickly in southern Maine, with continued warm temperatures. Many fields have soils that are still wet from all the rain, and we continue to see nutrient deficiencies and weed control problems as a result. Insect pests […]
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CORN EARWORM NUMBERS LOWER Fall Armyworm Moths and Larvae Found in Several Fields SITUATION Early planted corn is now silking in much of southern Maine, while early-mid season corn is between whorl and pre-tassel. Many fields are showing signs of nitrogen and/or zinc deficiency, which is a result of the excessive rains leaching these nutrients […]
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CORN EARWORM THREATENS EARLY SILKING CORN European Corn Borer, Corn Earworm & Fall Armyworm Moths Caught This Week SITUATION Early corn planted under plastic mulch or rowcovers is silking in southern Maine, while early-mid season corn is now between whorl and pre-tassel. Most fields are very wet from all the rain and we are seeing […]
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2023 SWEET CORN PEST SEASON BEGINS! European Corn Borer Active in Early Fields, Earworm Reported in Massachusetts The 2023 University of Maine Cooperative Extension Integrated Pest Management (IPM) program for sweet corn is getting underway. We have set up pheromone traps at volunteer farms to monitor the adult (moth) stages of European corn borer, corn […]
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Last Issue for 2022 Sweet Corn IPM Newsletter – No. 12 – September 9, 2022 CORN EARWORM NUMBERS HIGHER Most Silking Fields Now Require Tight Spray Schedule This will be the final issue of the Sweet Corn IPM Newsletter for the 2022 season. I would like to thank all of the growers who participated in […]
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Sweet Corn IPM Newsletter No. 11 – September 2, 2022 EARWORM PRESSURE HIGHER IN SOUTHERN MAINE Fall Armyworm, European Corn Borer Pressure Remains Moderate Highmoor Farm Twilight Meeting: Thursday, September 8, 5:30-7 p.m. Come join us for a tour of the vegetable variety trials at the Maine Agricultural Experiment Station. Pumpkins, corn, radicchio, celery, artichokes, […]
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Sweet Corn IPM Newsletter – No. 10 – August 26, 2022 MODERATE CORN PEST PRESSURE Silk Sprays Needed for Corn Earworm, Fall Armyworm at Most Sites Highmoor Farm Twilight Meeting: Thursday, September 8, 5:30-7 p.m. Come join us for a tour of the vegetable variety trials at the Maine Agricultural Experiment Station. Pumpkins, corn, radicchio, […]
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Sweet Corn IPM Newsletter No. 9 August 19, 2022 PEST PRESSURE LOWER THIS WEEK Corn Earworm, Fall Armyworm Numbers Still Require Protection of Silking Corn SITUATION Some much-needed rain and cooler night temperatures over the past week have helped corn development and reduced insect pressure in most fields. However, moth counts of corn earworm, fall armyworm […]
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Sweet Corn IPM Newsletter No. 8 August 12, 2022 CORN EARWORM NUMBERS MUCH HIGHER Corn Earworm, Fall Armyworm Moth Numbers Require Higher Spray Frequency SITUATION As harvest gets into full swing, some rain and cooler temperatures have improved conditions for corn development in much of the state this week. Moth counts of corn earworm, fall […]
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