Were it not for the title, you would assume you were looking at a well tended grape vineyard. This is White Mulberry being cultivated for silk worm breeding in Japan. The picture demonstrates one of the problems grape growers have in keeping their vineyard rows free of Mulberry: It blends in with its surroundings.
Birds eat Red Mulberry and Sumac berries, Choke Cherries and other wild fruit. They perch on a trellis wire, and pass the seeds directly into the vineyard row. These three plants are very successful and, from seed, can fill a trellis in a single season.
Mulberry, being the most difficult to differentiate from its neighboring grapevines, can escape detection until pruning time. If permitted to grow in a second season, its bushy height and width will begin to block a vineyard row.
Mulberry fruit ripens in mid summer. It is relished by song birds who are more than willing to shift their attention to grapes when these ripen. In other words, by permitting Mulberry to grow in your vineyard, you are providing an avian hors d'oeuvre for the feast to come.
Kill it, campers! Cut it off at the ground and paint the wound with Round Up or 2-4-D Amine. If you don't do this, we have a great recipe for Mulberry Wine.
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