Iris Yellow Spot Virus was just confirmed on green onions on Oahu by Dr. John Hu and Wayne Borth of CTAHR PEPS. The virus has been known to attack bulb onions on Maui and is now posing a threat to Oahu's green onion industry. The virus is transmitted by the onion thrips (Thrips tabaci). LIFE Farm Doctor & recently retired Extension agent, Steve Fukuda helped bring this problem to CTAHR's attention. LIFE will be working with Extension agent partner, Robin Shimabuku, Dr. Ronald Mau, emeritus extension entomologist, and PHD candidate, and Ming Yi Chou to develop a workshop for growers in May.
For more information and symptoms: