Asian spiderflower

Asian spiderflower (lat. Cleome viscosa) is an annual herbaceous plant belonging to the Capparaceae family. Known for its glandular, sticky foliage, it is widely recognized as a problematic weed in various tropical and subtropical agricultural environments, often competing aggressively with crop plants.

It is commonly found in fields growing cereals, legumes, and vegetable crops. Due to its rapid growth rate, Cleome viscosa can quickly dominate a field if not properly managed, significantly impacting the growth and development of targeted agricultural production.

Biologically, the plant is highly prolific, producing numerous seeds that remain viable in the soil for extended periods. Its deep taproot system allows it to effectively extract moisture and soil nutrients, enabling it to survive in adverse conditions where other plants might struggle, thus acting as a resilient competitor.

The economic impact of this weed is significant, primarily due to the reduction of crop yield through intense competition for light and resources. In dense infestations, the weed's dense structure can also interfere with harvesting equipment and reduce the overall quality of the harvested produce.

Integrated weed management practices are essential to control this plant:

• Implementing systematic tillage practices, such as mechanical hoeing and harrowing.
• Utilizing selective herbicides registered for specific crop use.
• Adopting diverse crop rotation schedules to reduce the weed's seed bank.
• Removing flowering weeds early to minimize the annual seed set and future infestation.