The first sign of attack is a wilting plant. Tip the pot up and you will find that the grubs have destroyed most of the roots. Carefully clean all this compost away from the plant's roots and re-pot using a special plant protection compost. This will protect the plant from these creatures for up to 12 months. The biological use of nematodes will also help or a chemical drench will give spot control for up to six months.
Weeds are the worst enemies of our crops.
They rob water, take the air and light away from our plants, and you've got to get on top of them. Do a little weeding and do it often using a hoe, and make sure it is sharp for better crops. Geoffrey Smith said put straw down on the paths between the beds to suppress the weeds. This will gradually rot down as you walk on it, and then you can alternate the paths for the beds every other year. Anne Swithinbank said the soil could be very fertile, so try growing the crops closer together and this will give the weeds less chance to grow.