Controlling morning glory - Knowledgebase Question

Mountain View, CA
Avatar for barbara_tele
Question by barbara_tele
July 31, 2006
How do I control my neighbor's morning glory vine that is sending it's runners over to my yard?

Answer from NGA
July 31, 2006
Wild morning glory, or field bindweed, is difficult to control once established. It forms a deep, extensive root system and pulling the tops only encourages new sprouts from the roots. To kill it, cultivate or hoe every 6 weeks throughout the growing season; this eventually weakens the root system. Don't let bindweed set seed; the hard-coated seeds can sprout even after lying dormant in the soil for years. An herbicide containing trifluralin may provide pre-emergence control around many ornamentals. In mid-summer, when bindweed is growing vigorously but has not yet set seed, spot-treat patches with glyphosate, taking care to avoid contact with desirable plants.

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