Seminole Crop E News

Agricultural News for Farmers and Agribusiness in SW Georgia

Fighting Mold in Peanut

Posted by romeethredge on August 10, 2015

White mold of peanut has become increasingly problematic.  No big surprise as conditions are absolutely perfect for it now (hot, humid and wet). As we continue the fight against this plant disease, Dr. Bob Kemerait, UGA Plant Pathologist gives us these words of wisdom.

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What can we do to increase control?

 

1.  REMEMBER:  In a season like this, the perfect storm of a season, even our BEST fungicide programs for white mold may only provide ~70% control.  No program will stop all initial “hits” of white mold where a plant here, there and across the field wilts.  BUT a fungicide program MUST prevent the disease from spreading from that plant to other plants within the row and down the row.

 

2.  Spraying the peanut field at night or in the darkness of early morning when the leaves are folded is a GREAT way to get the fungicide where it needs to be (the crown of the plant).  

 

3.  We may consider using more aggressive fungicides.  For example, Tebuconazole/Bravo is good but not the best.  If problems are developing, we may shift to a more effective (and more expensive) program.

 

4.  Consider extending the white mold schedule.  Even if we have completed a “traditional” white mold program, we may extend the program, perhaps using the Tebuconazole/Bravo program mentioned above.

 

5.  Use anticipated rain events and irrigation to move the fungicide to the limbs and to the crown of the plant.

Thomas County Agent, Andrew Sawyer, made a good post concerning mold and underground mold.

 

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