Integrated Pest Management
- low-growing matted plant with tan-colored stems that radiate out from a central point
- leaves are opposite and compound, with four to eight pairs of oval-shaped leaflets
- bright yellow flowers have five teardrop-shaped petals; flowers are up to 1/2 inch in diameter
- spiny seedpods change color from green to brown as they mature
- commonly grows in planting beds
- summer annual that germinates late spring to early summer and produces flowers within 3 to 4 weeks followed by seedpods 2 weeks after flowers
- flowers only open in the morning
- puncturevine continues to produce flowers and seeds until fall frost; seeds remain dormant at least 1 year
- Hand-pull plants in planting beds prior to seed maturation; rake or sweep up any dropped burrs (seedpods).
- Puncturevine thrives in compacted soil; avoid or reduce soil compaction by aeration or preventative methods.
- Apply a mulch layer 3 inches deep on planting beds to reduce seed germination.
- Apply an appropriate pre-emergent herbicide prior to seed germination or apply an appropriate post-emergent herbicide directly to target seedlings in planting beds.