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Dectes texanus LeConte - (soybean stem borer)
The beetle is a serious pest of soybean and sunflower in North America. The larvae bore into the pith of the stems and can cause considerable damage resulting in lodging of the plant. Some weeds are also infested.
In most areas there is one generation per year and only one larva completes its development per stem. The mature larva moves to the base of the stem and constructs an overwintering chamber. It pupates the following year and the young adult emerges in early summer.
|• English:||soybean stem borer
sunflower stem borer
|• Español:||barrenador del tallo de la soya
barrenador del tallo del girasol
The adult is around 15 mm long, dark gray with some lighter bands on the antennae and legs. The are 2 prominent spines on the sides of the thorax.
For details see the respective page in the BugwoodWiki.