You should pull up and remove weeds by hand as and when they appear. If it is a regular problem, you might need to reseal the paving. In extreme cases, the sub layer itself may need to be re-laid. You can use weed killer, however some paving can be discoloured by stronger weed killers.
Llanfyrnach
Llanfyrnach is a village, community and also parish in Pembrokeshire, Wales. The village is in the selecting ward of Crymych. The village of Crymych as well as the hamlets of Hermon, Glandwr and also the eastern part of Pentre Galar are in Llanfyrnach church. Llanfyrnach implies the church of St Brynach. Llanfyrnach town remains in a remote upland location on the headwaters of the River Tâf, about 11 miles (18 km) from Cardigan. The village remains tiny, with much of the workforce employed in transportation. The population of the church was 542 (1801 ), 933 (1851 ), 954 (1901 ), 844 (1951) and 837 (1981 ). [2] The location continues to be mostly Welsh-speaking; the proportion of Welsh audio speakers was 100% in 1891, 97% in 1931 and 82% in 1971.