A network that helps people worldwide obtain rapid advice and information on crop protection, including the identification and management of plant pests.
PestNet is a network that helps people worldwide obtain rapid advice and information on crop protection, including the identification and management of plant pests. It started in 1999. Anyone with an interest in plant protection is welcome to join. PestNet is free and is moderated, ensuring that messages are confined to plant protection.
October 2012. Is there a way to control Athelia rolfsi in the standing crop of peanut. It seems most of the control measures are applied before sowing.
One suggestion was biofumigation, although how this woudl be applied to the standing crop was not specified.
As a member explained, once the crop is set there is not much a farmer can do about it, so it comes down to prevention. Deep ploughing (to bury the propagules) followed by crop rotation with a well weeded cereal for an annual cycle is recommended. Fallowing is probably not a good idea because weeds can carry over the disease. Soil insects have been linked to an intensification of the problem, so seed treatment with chorpyriphos or a similar material will reduce damage from the insects and the disease. The benefits of seed treatment with Trichoderma harzianum are mentioned in the literature and might be considered in an experimental context.
There is a fact sheet on the fungus at the PestNet website. Go to www.pestnet.org, click on Pest Fact sheets, Choose between Farmer and Extension and go to Fact Sheet no. 11.