Senna obtusifolia - sickle pod
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Mostly an annual
herbaceous plant, but can survive for two years. Grows anywhere from 1
to 6 feet tall, with a somewhat woody stem at the base. Sicklepod can
become a problem for many crops in two or three years. It can reduce
yields by competing for light, nutrients, and water. It also invades
and dominates pastures. The seed is the only part of the plant eaten by
cattle. Cattle can then disperse seeds from one property to another.
Control should aim to prevent seed production, by treating infestations
before seeds mature. Sicklepod is relatively easy to control in the
seedling stage, with control becoming more difficult with increasing
age. All observed seedlings should be treated with a spot spray of
herbicide.
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