Insect with new appetite for soybeans discovered in northeastern Nebraska

Kristen Sindelar
Oct 25, 2024
Oct 25, 2024

Soybean tentiform leafminer 1.jpg — Defoliation of the soybean plant occurs when the soybean tentiform leafminer feeds on the leaves.
Photo by Wayne Ohnesorg, Nebraska Extension-UNL CropWatch

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The menu has changed for an insect native to North America. Unfortunately for farmers, soybeans are becoming the main course craved by the soybean tentiform leafminer.

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Soybean tentiform leafminer 2.jpg — With characteristic orange, white, gray and black markings, the adult soybean tentiform leafminer measures only 6-7 mm long.
Photo courtesy of the University of Minnesota

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soybean tentiform leafminer 3.png — The soybean tentiform leafminer has switched from feeding on native host plants to soybeans.
Photo by Wayne Ohnesorg, Nebraska Extension-UNL CropWatch

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Soybean tentiform leafminer 4.png — The adult soybean tentiform leafminer lays eggs on the underside of the soybean leaf.
Photo by Wayne Ohnesorg, Nebraska Extension-UNL CropWatch

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Reporter Kristen Sindelar has loved agriculture her entire life, coming from a diversified farm with three generations working side-by-side in northeastern Nebraska. Reach her at Kristen.Sindelar@midwestmessenger.com.