Gardening Answers Knowledgebase
Knowledgebase record #790
I have small ants on my fava beans and it appears that some of the young pods are blackening. Do ants eat fava beans? Is there anything I can do this year, or should I just start over next time in a different location?
The ants may be visiting the extrafloral nectaries of your fava bean plants! (see this photo of just this activity)
Apparently, some insects are attracted to the nectar of Vicia faba, as this Oregon State University Extension page describes:
Here is similar information, from Golden Gate Gardener.
It's possible that the blackening is from aphid honeydew, or perhaps it could be chocolate spot, which is a fungal disease (Botrytis fabae). Here is more about this, from the Royal Horticultural Society.
Practicing crop rotation might be beneficial with your favas as it is with other edible plants. Below is additional information on vegetable crop rotation.
To check your favas for botrytis or other diseases, take samples to a Master Gardener Clinic for diagnosis.
|Keywords||crop rotation, Vicia faba, Vegetables--Diseases and pests|
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June 24 2013 13:17:10