Different Colors Attract Sweet Potato Weevils

January 3, 2014 5:49 PM

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Different Colors Attract Sweet Potato Weevils

The sweet potato weevil, Cylas formicarius (Fabricius), is the most serious pest of sweet potato around the world, damaging sweet potatoes in the field and in storage. Because the larval period is spent within vines or tubers, and the adults are nocturnal, chemical control frequently is not effective.

Mass trapping using synthetic pheromones has suppressed populations of sweet potato weevil males in several countries, but it has not reduced the damage greatly. However, a new study published in Annals of the Entomological Society of America suggests that the color of the traps may affect their use...

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