Morning Glory - Knowledgebase Question

Hillsboro, OR
Avatar for Mbwhitla
Question by Mbwhitla
April 14, 2001
Hi, I am trying to find out what will eliminate the morning glory that grows wild I have tried roundup, crossbow, and diazanon, Do you have any suggestions? The morning glory chokes off my rasberries and various other plants.

Thank you Dorothy

Answer from NGA
April 14, 2001
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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