Monty has advice on pest control and ways to tackle other problems prevalent during the summer, white Joe demonstrates the best ways to keep gardens watered at this time of the year. Also, Carol consults with the RHS bug expert at the society's beautiful Wisley Gardens in Surrey, and Sarah Raven is busy in the dry garden at Berryfields adding exciting new plants that thrive even during prolonged heatwaves. Producer Andy Vernon ; Series producer Sarah Moors BBC GARDENERS' WORLD MAGAZINE: E2.95, monthly