Fusarium Strikes Again??

[Rd003]

Just wanted to know if one of my Queens is coming down with the acrimonious fusarium wilt from those in SFl who’ve lost some ,,, (Fusarium has killed half of the washies in the vicinity) 

Sorry about the low quality, makes it hard to ID

Edited February 9, 2019 by Rd003

[PalmatierMeg]

Maybe. Or what I'm seeing may be just the oldest leaf dying back. If your queen has wilt, it is doomed. Watch for the following:

1. The most distinctive trait of wilt is that leaves die in the following way: one side of a leaf will turn yellow, then brown while the other side appears healthy and green. Then the opposite side of the leaf also turns yellow to brown until the leaf is dead. See photo below.

2. The disease symptoms start with the oldest leaves and move to the youngest. From the onset of obvious symptoms, the palm will be dead within 2-3 weeks.

3. Leaves of wilt affected palms turn a peculiar grayish brown as opposed to tan of normal dead fronds.

4. After you cut down the dead palm you will notice that the center of the trunks have reddish brown diseased areas.

5. Wilt is untreatable and invariably lethal. You must remove all affected palms and send them out to be burned.

6. Wilt spreads quickly but its vectors haven't been established for certain. Within 15 months of my first affected queen, I had lost a dozen more queens, two mules and a 40' Washy.

Check the suspected palm daily. If it has wilt you will see the disease quickly reduce it to a shriveled husk. If you're sure it's dying, get it out of your garden ASAP and pray the disease doesn't spread. The fact that wilt is already decimating Washy populations in your area is ominous. My condolences.