Hello everyone!
First and foremost the best way to control weeds is to keep them from germinating in the first place, especially America's #1 Least Wanted Weed, the dandelion, buy a book or go to the library and eduacate yourself on weeds; those common in your god-acre and around your immediate neighborhood – your soil type might differ, lighting, drainage, etc. which may just give you a different set of evils – this is where workshops come in, so you can bring soil/weed/evasive plants to discuss the proper way to handle on the property and save time/money.
Secondly, ladybug is on the right track with her remedy; but, if you want to be more on target, guaranteed, use my weed treatment that will last up to four (4) months without question.
My Weed Treatment -
1 cup of anti-bacterial liquid dish soap (lemon)
1 cup of ammonia (lemon scent)
4 tbsp. of instant tea granules
(Follow-Up with the Scott's product below)
Mix all of these together in 20 gallon hose-end sprayer, filling the balance of the sprayer with warm water, overspray entire area, wetting it down well; then apply Scott's – Ortho Weed B Gon Max / ready to use / pull-n-spray application; will not harm the lawn but be sure to follow the label directions exactly.
Thirdly –
whew! – GREENB, what's the area like? Are they climbers – wraping around other (trees, fence, shrubs, etc.) or suckers sticking to buildings? Are they flowering or a broadleaf? You used the plural term – is it just one taking over or various ones?
You can begin your 'fix-up' asap by bring samples to Creative Blossoms or sending pictures to their facebook page – from there your problem can be better addressed.
My recommendation, however, if you neighbors don't comply is to 'cook' everything and start new! This can be done modestly and in about 2-3 weeks your god-acre will be completely weed free allowing you to enjoy it for the summer (beginning the 4th of July) and be in complete control of any weeds that may arise by hand by simply prying them out. Once again, contact those at Creative Blossoms for the details on how to make the those weeds history by sizzling them!