Countryfile - 26/07/2009

Matt Baker and Julia Bradbury head for the Royal Welsh Show, one of the highlights of the rural calendar, to discover some of the tricks of the trade of livestock showing and to get tips on buying your first pony. John Craven investigates what's being done to protect the countryside from alien invaders. There's a growing threat to the creatures and plants of our countryside from foreign invaders such as the grey squirrel, the mink and the muntjac deer but should we be hunting them down in order to save our own native species? Meanwhile, Katie Knapman heads to Ironbridge to find out why this tiny corner of Shropshire countryside became the birthplace for the Industrial Revolution. And with all of his sheep sheared, Adam faces a new challenge - finding a buyer for their wool.