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Cowpea and sunnhemp are the two potential cover crops to reduce #fallarmyworm population in maize field.

Two potential cover crops such as cowpea and sunnhemp have the potential to reduce the larval population of #fallarmyworm by lengthening the developmental time and increasing larval mortality. The other cover crops such as either corn or sorghum-sudangrass are two more preferred crops for the fall armyworm. Hence there is a potential to design a ‘push-pull’ strategy of FAW management by planting cowpea or sunnhemp inside the maize field as a ‘push’ crop, and ‘sorghum’ in the perimeter of maize field as a ‘pull’ crop. However, substantial additional research is needed to determine the influence of these crops on the population dynamics of fall armyworm in the maize field. 

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Aislinn Pearson
Aislinn Pearson (@aislinnpearson)
1 month ago

An interesting concept Sundar. What is the primary use of cowpea/ sunnhemp – is it mainly for human consumption or animal consumption? I always like intercropping – the benefits are often more than simply for armyworm, but also relate to better soil health, better plant diversity and so better soil microbial diversity.