
Temperature is a key factor that affects bean production. High (above 85 degrees F) or low (below 70 degrees F) can cause plants to create flowers but no beans.
Periods of dryness between watering can also inhibit bean development. Hot, dry winds can
exacerbate this problem.
The best way to ensure a healthy bean crop is proper crop management. Use mulch to regulate soil temperature and retain moisture. Plant a windbreak crop such as corn to shield green bean plants. Harvest beans regularly to encourage the plants to continue producing. If beans are left on the plant beyond their peak harvest time they will use energy to develop seed rather than create new beans. (Cynthia Domenghini)