Weed Free & Tidy

Last summer my lawn was covered in prickly weeds, which left spikes in bare feet when stood on. Can you suggest something that I can use to stop this happening again?
Use Yates Prickle Weedkiller - it’s ideal for this problem. It selectively kills off Onehunga Weed and a number of other broadleaf weeds in lawns, without hurting the lawns themselves. 

Can you suggest something that will effectively kill convolvulus? 
I have two cats so want to make sure they are not harmed by anything I try, ditto the birds and butterflies etc that are regular visitors.
The most effective control for convolvulus is Woody Weedkiller. This product is a selective weedkiller and controls broadleaf weeds only. The spray works slowly and the effects may not be visible for 3 to 4 weeks. Precautions: Do not spray when winds are obvious as spray drift can damage other plants nearby. You would also need to ensure that animals, pets, etc are well away when spraying. If you are spraying in a concentrated area, you will need to delay any fresh planting for 6 months. Note: This is a very effective control for convolvulus which can become very invasive but the precautions listed are very important.

My lawn has lots of weeds growing in it. What should I use to kill them off, which won’t damage the grass itself?
You could use Scotts Lawn Builder and Weed Kill. This product not only kills the weeds in the lawn, but gives the added benefit of fertilising your lawn at the same time.

How do I get rid of docks?
Dock is generally difficult to control because of its long tap root. If the dock weed is on your lawn, you can control it with Woody Weedkiller. Spray it according to the manufacturer’s directions. Woody Weedkiller works on broad leaf weeds in lawns. It is not advisable to use this product on your garden - but it can safely be used on lawns. If the dock weed is in your flower garden you will need to dig it out by hand; while they are small is best, making sure you pull out the root as well. You can also spot spray with Roundup, Glyphosate or Buster (available in the Kiwicare range) which is known as Shortcut 20. Take care not to get any spray drift on desirable plants.