An aquatic weed harvester, also known as a water mower or weed cutting boat, is a machine designed to cut and remove underwater weeds, reeds, and other aquatic plants from waterways. The harvester is needed because waterways in many countries are becoming clogged by excessive aquatic plant growth, which is worsened by fertilizer runoff and warmer temperatures allowing plants to grow quickly. The overgrowth of vegetation can disrupt water flows, reducing irrigation and increasing flooding risks, and overwhelm fish habitats and emerging crops.

1. https://en.wikipedia.org/wiki/Aquatic_weed_harvester
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Pengadaan Weed Harvester
An Pengadaan Weed Harvester, also known as a water mower mowing boat and weed cutting
boat, is an aquatic machine specifically designed for inland watercourse management to cut
and harvest underwater weeds, reeds and other aquatic plant life. The action of removing
aquatic plant life in such a manner has been referred to as " Pengadaan Weed Harvester".
Water is an important resource and in many countries, waterways are increasingly clogged by
aquatic plant growth. This is particularly so in tropical countries where warmer water means
the plants grow more quickly, and increasing run-off of fertilisers and effluent has exacerbated
the problem. Irrigation ditches and pumps can become overgrown with vegetation, power
station and factory water intakes can get blocked, boats can get hindered, fish stocks can be
disrupted, and water moves more slowly, resulting in greater evapotranspiration and a greater
risk of flooding. In some large irrigation projects in India, canals have become so overgrown
with vegetation that water flow has been reduced to a fifth of its previous amount. In
Bangladesh, floodwater has washed mats of water hyacinth onto paddy fields, overwhelming
the emerging rice crops Small fish can become entangled in excessive algal growth.