By Kenneth Marcos 
Farmers in many rice-growing areas are noticing something alarming: no matter how much herbicide they spray, the weeds just won’t die.
This growing concern is at the center of an upcoming online seminar titled “Status of Herbicide Resistance in Rice Production Systems in the Philippines,” happening on September 30 at 9:00 AM. The webinar will feature Dr. Analiza Henedina M. Ramirez of the University of the Philippines Los Baños (UPLB), a leading expert in weed science and crop protection.
Why Should Farmers Be Concerned?
Herbicides are chemicals used by farmers to kill weeds that compete with rice for sunlight, water, and nutrients. But in recent years, some weeds have developed resistance—meaning the usual herbicides no longer work on them.
This makes farming harder and more expensive. Instead of solving the problem, many farmers end up wasting money on products that no longer deliver results.
In some rice fields, these “super weeds” are now spreading quickly, reducing harvest and threatening the country’s rice supply and farmers’ income.
What Will Be Discussed in the Webinar?
Dr. Ramirez will share the latest findings on:
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Which weeds are now herbicide-resistant
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Where these cases have been reported in the Philippines
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What causes herbicide resistance
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What alternative solutions farmers can use
This is an important event especially for rice farmers, agriculture technicians, LGU agricultural officers, and agribusiness owners. Understanding this issue is crucial for developing better weed management practices and protecting our food supply.
How to Join the Webinar
The webinar will be conducted via Zoom, and registration is free.
📌 Register here: https://forms.gle/CCeLkt7joL6uyLAB7
📌 Zoom link: https://philrice-gov-ph.zoom.us/j/98973360067
A Call for Smart Farming Practices
Experts warn that the overuse and misuse of herbicides are major reasons why resistance happens. Farmers are encouraged to rotate herbicides, follow recommended application methods, and consider integrated weed management techniques—such as hand weeding, crop rotation, and water management.
As climate change and shifting farm conditions continue to impact Philippine agriculture, staying informed and adapting to new challenges is more important than ever.
Join the discussion. Protect your harvest. Secure our rice supply.
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