Taking up FloBear's suggestion, resist the temptation to zap the bindweed too early. Let it grow well up the cane. The roots of a well established plant can go down 10 metres in good soil conditions!! When you treat with glyphosate, it is drawn down into the root system by the plant, but the distance it travels depends on how much has been applied, so the more leafage you zap the better. Any root far enough down to have avoided the glyphosate will send up new shoots, and when they appear, do the same thing - leave them till you have a good surface area. After two or three applications the root will be exhausted.
I have been trying to eradicate Bear's Breeches - it has a massive fleshy root system. This is my third year of regular zapping it, and at last it seems to have given up. Just a few small leaves have appeared, and they have been zapped today.
All points noted - with thanks...now I get to stay..!
I have to say thank you all so much for wonderful advice, since the begining of May, Thursday has been my bindweed day!! All new shoots get staked, week old shoots high up the bamboo stake get uncoiled, placed into a small plastic bag and sprayed. The bag gets tied on and I spray inside the bag once more the following week also. I have to say it is having a huge effect. One bed it appears to be almost eradicated, this bed it totally free from all plants, I know as soon as I start to dig it over and put some plants in there, I will shake up the roots, so I am taking my time. I have two very full neglected beds that I am also working on, but because there are plants in these beds, the bindweed appears more prolific. I have my routine down to a tee now. It requires dedication, and if I miss just one plant I pay the price the following week. My neigbours think I am crazy with little knotted plastic bags all over the garden.
Lesinnl, so glad to hear your bindweed cull is progressing well. Thursday is bindweed day made me smile. Perhaps it could be cake day as well - a reward for your persistence and vigilance :- )
just looking through these posts to see if there is a magic answer. We have lived here for 10 years and I have been using the methods above (glysophate and sodium chlorate in the past, in freezer bag and tie all the leaves in) membrane and pulling roots which has really reduced it, However this year we had a load of Leylanii removed and with the rain, that patch has gone mad. As you can't but Sodium ch. anymore a friend suggested caustic soda, but apparently this is a nuclear option , but does work-anybody know?