Streaked weaver

The streaked weaver (Ploceus manyar) is a member of the Passeriformes order and the Ploceidae family. In many Asian agricultural regions, this species is identified as a significant pest, particularly known for its devastating impact on cereal crop production.

The primary crop affected by the streaked weaver is rice. During the milk and dough stages of grain development, these birds aggregate in large flocks, causing substantial economic losses by consuming or damaging the developing panicles.

The biological cycle of the streaked weaver is marked by its colonial breeding behavior. The birds construct elaborate nests near water sources or within wetlands adjacent to paddy fields, utilizing the high availability of food to support their nesting success.

The nature of the damage includes selective consumption of grain and mechanical damage to the stems. This leads to reduced yields and can cause widespread lodging of the crop, which significantly complicates harvesting processes and increases field waste.

Management and protection strategies include:

• Deployment of acoustic repellers that mimic predator calls.
• Installation of bird-proof netting for high-value or experimental plots.
• Active monitoring and destruction of nesting colonies during the pre-breeding phase.
• Use of visual deterrents such as reflective tapes, balloons, and scarecrows.
• Integrated landscape management to reduce nesting habitats near primary cultivation zones.