Black Tip Fungus

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Black Spots
Signs of Black Tip Fungus

Black Tip
Fungus killed the growth tip

Black Tip
Dead Growth Tip

Black Tip
Dead Growth Tip

 
     Black Tip Fungus is very hard to control once it gets a big head start.  Black Tip usually strikes in the spring and in the fall, but can pop up at any tip of the year.  Black Tip Fungus loves cool, wet, and shady areas.  When condition are right is can pop up overnight, and spread like wildfire.  If left uncontrolled it will kill the growth tips of mature trees, and kill entirely a small plumeria.   If Black Tip has killed the growth tips on a mature plumeria and temperatures warm up, the black tip will die off.  Then the blacked tips will callus and break off.  Next, the plumeria will branch back out as if it was pruned.  Sometime on a tree it's not all bad, because it gets a ton of new branches, but if it happens every year, or disgustingly, twice a year you will have hell getting you plumerias to bloom. 
 
Best advice is...
try to prevent any black tip outbreaks....
if one occurs spray and fight it every step of the way...
if you lose the battle, then you get a ton new branches,
because if you fight Black tip with Fungicides it won't die.

How to Prevent Black Tip Fungus
Black Tip fungus will over winter on infected plants.

1.  Every 2 or 3 weeks apply "GreenLight "Fung-Away II" granules
     to the plumerias soil.  (about a hand full per pot)

2.  Grow plumerias in as much sun as possible.

3.  Do NOT spray the plant with water at night when temp are
      below 60 degrees F.  (you can water, just not the leaves etc.)

4.  Spray Plumerias and *entire area of greenhouses every 2 weeks
     with "Fung-Away", even if there are no signs of Black Tip.

*entire area ::  walls, pots, benches, soil, grass, floor... everything.
 


How to Control Black Tip Fungus
Black Tip fungus will over winter on infected plants.

1.  Reduce humidity and try to keep the area as dry as possible.

2.  Relocate the plumeria ... this seems to help a lot.

3.  in the greenhouse are use lots of fans.... this will make all
    the difference in the world... more fans the better.

4.  Apply Greenlight "Fung-Away II" granules to the soil.
     (about a hand full per pot)

5.  Use Fung-away spray on the plumeria and the *entire area.
     (Spray the *entire area once per week)
*entire area ::  walls, pots, benches, soil, grass, floor... everything.

6. Spot spray the infected plumeria with Fung-Away every other day or more.
    (continue until you get control then back off the spray)

   (Fung-Away spray does not seen to harm plumerias, even in large doses.)

7.  Try other Fungicides

8.  Keep up the good fight until warmer Tempatures, which will kill the black tip.
 
 
 
 
 
 1. Greenlight  Home

2. Buy "Fung-Away" 

3.  Ortho Fungicides

 

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COPYRIGHT 2001
Plumeria 101 / Michael Anders