alternatives to pesticides - weeds - Morning glory
Morning glory is a weedy vine that will twine all over the garden, covering plants to the point of smothering them. It is usually spread by seed or invasive roots. Its thick fleshy roots can travel long distances just under the soil surface.
Hand weeding can remove large quantities of roots, but any broken pieces are capable of sprouting new growth. Never dispose of morning glory in your compost pile. Repeated, persistent digging or rototilling as the new growth sprouts can deplete the food reserves and allow other plants to compete successfully. Keeping all green parts removed from midsummer to late fall will starve the roots and help control morning glory and other perennial weeds. Be persistent; it can take a long time to eliminate morning glory from your yard.
Least-toxic chemical control
If chemical control is required, do not spray. Paint the leaves with the least-toxic systemic herbicide available when the plant is actively feeding its roots. A systemic herbicide will move from the leaves through the plant’s vascular system to kill the roots. Do not put plant parts that have been treated with herbicides into your compost pile.