Morning glory (Ipomoea grandifolia) management with winter cover crops
2025
Mateus Joaquim Duminelli Furquim | Henrique von Hertwig Bittencourt | Leonardo Khaoê Giovanetti | Lisandro Tomas da Silva Bonome | Michelangelo Muzell Trezzi
Morning glory (Ipomoea grandifolia) is a resilient species that presents challenges for effective control, particularly due to herbicide-resistant biotypes. Our study evaluates the impact of winter cover crops shoot dry mass on morning glory establishment and development. The experiment was carried out in controlled conditions, utilizing shoots from black oat (BO), ryegrass (RG), vetch (VE), oilseed radish (OR), BO+VE, BO+OR, RG+VE, RG+OR, VE+OR, and control with uncovered soil. Cover crops reduced morning glory emergence up to 65%. Root length was suppressed up to 70%, while stem length and dry mass decreased by up to 20% and 76%, respectively, compared to control. Oilseed radish demonstrated the highest potential in suppressing morning glory.
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