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Compared to other leguminous cover crops, jack beans are the best option when it comes to protein content and replenishing nitrogen in the soil. Jack beans are also easy to store and extremely drought and pest resistant. Jack beans survive when other bean crops suffer with lack of rain or to weevil infestation, a common storage pest. But most importantly, jack beans play a vital role in repelling a recent invasive species, Fall Armyworm – a pest wreaking havoc on the maize harvest in Mozambique. Jack beans are a win-win when intercropped with maize, as they repel moths that lay the worm eggs while also enriching the soil.