Tropical Fruit Forum - International Tropical Fruit Growers



Author Topic: Anthracnose on mango flowers  (Read 446 times)

Cythompson159@yahoo.com

  • JoJo Mammey
  • Member
  • ***
  • Posts: 76
    • East central Florida
    • View Profile
Anthracnose on mango flowers
« on: February 14, 2019, 05:07:16 AM »
We have been having a lot of rain here in east central Florida and think I have anthracnose on my LZ that is having its first major bloom. I sprayed it heavily with cooper fungicide as with fl CC about a month ago when it had the first signs of flowering. The CC looks great but the flowers havenít opened yet. So I need to get some more cooper fungicide and spray heavily.
My question is do I spray on the flower panicles in addition to the leaves?
Do I treat the CC different from the LZ since the flowers are just starting to open vs the CC and the LZ is done flowering for the most part?

Cookie Monster

  • Broward, FL Zone 10b
  • Administrator
  • Hero Member
  • *****
  • Posts: 4554
  • Eye like mangoes
    • Tamarac, FL, 33321, 10B
    • View Profile
Re: Anthracnose on mango flowers
« Reply #1 on: February 14, 2019, 10:16:13 AM »
It might not be anthracnose. Maybe post pictures when you get a chance. Powdery mildew is generally what we see this time of year, and copper isn't all that effective against it. Lemon zest is particularly susceptible to PM.
Jeff  :-)

Cythompson159@yahoo.com

  • JoJo Mammey
  • Member
  • ***
  • Posts: 76
    • East central Florida
    • View Profile
Re: Anthracnose on mango flowers
« Reply #2 on: February 14, 2019, 04:45:03 PM »





Today I see a lot of the flowers have fallen off but they were swollen black like double the size of the normal flower when open.

Cookie Monster

  • Broward, FL Zone 10b
  • Administrator
  • Hero Member
  • *****
  • Posts: 4554
  • Eye like mangoes
    • Tamarac, FL, 33321, 10B
    • View Profile
Re: Anthracnose on mango flowers
« Reply #3 on: February 14, 2019, 07:02:46 PM »
Hmm. I do see what looks to be some PM, but hard to tell. Not 100% sure if there's something else going on. Lack of fruit set can also be from exposure to cold or lack of nutrients.


Today I see a lot of the flowers have fallen off but they were swollen black like double the size of the normal flower when open.
Jeff  :-)

Cythompson159@yahoo.com

  • JoJo Mammey
  • Member
  • ***
  • Posts: 76
    • East central Florida
    • View Profile
Re: Anthracnose on mango flowers
« Reply #4 on: February 14, 2019, 07:27:43 PM »
Thanks, yeah we had up and down cool, warm cool temps with a lot of rain.

WGphil

  • Hero Member
  • *****
  • Posts: 599
    • Winter Garden Florida 9B
    • View Profile
Re: Anthracnose on mango flowers
« Reply #5 on: February 15, 2019, 07:49:57 AM »
I had to spray sulfer on my LZ last season in the same cold wet conditions we have this time of year in central Florida

I love to prune but hate spraying but if you want fruit you do what you have too

Anything that is going to take heavy spraying in order to survive will get replaced eventually

 

Copyright © Tropical Fruit Forum - International Tropical Fruit Growers