【なぜ？】除草剤をまいた田んぼで今ごろ「オモダカ」が目立つ理由と今すぐできる対策

Why does arrowhead remain even after herbicide application? This video explains the reasons and provides a complete guide to countermeasures for next year. This is a must-see for rice farmers who want to learn about SU resistance, Basagran, and herbicide rotation. [Timestamps] ▼ Video Content 0:00 Introduction 1:06 Chapter 1: Over 100 offshoots from a single plant! The real reason why arrowhead is so tough to control 2:55 Chapter 2: It becomes less effective the more you use it! The mechanism of SU resistance 4:35 Chapter 3: Why is arrowhead so noticeable during mid-season drainage? 5:56 Chapter 4: What you can do now and what to change from next year 8:12 Summary Arrowhead is a perennial, difficult-to-control weed that grows in rice paddies. It produces 50 to 150 tubers from a single plant and continues to grow for up to 80 days after rice planting. Many people have likely experienced "only arrowhead remaining" even after using herbicides. The cause is SU resistance (resistance to sulfonylurea herbicides). By continuously using the same single-application herbicide, only the plants resistant to the herbicide survive, spreading throughout the entire rice paddy. This video explains why arrowhead weeds are prominent during the mid-season drainage period, how to deal with them immediately using a late-season herbicide (Basagran), and how to design a rotation plan for next year and beyond. [Editor's Note] What I realized while researching arrowhead weeds is that by the time you feel the herbicide's effectiveness has decreased, significant changes have already occurred in the rice paddy. SU resistance, once spread, is irreversible, so it's really important to be aware of it early. I hope this video will serve as a starting point for thinking about next year's herbicide rotation. This channel features Tome-san, who is currently studying rice farming, explaining research in an easy-to-understand way. Farmers and those interested in agriculture alike, please subscribe to the channel! YouTube Channel:    / @tano41com   Business Inquiries: https://forms.gle/xGssx42FRMg1yJRD7 #ricefarming #ricecultivation #agriculture #almondroot #herbicide