A committee of MPs hears concerns that a toxic chemical trapped in estuary sediments could have killed shellfish off the North East Coast of England. The issue was raised in evidence given to the Environment, Food and Rural Affairs Select Committee. The group was told by the Centre for Environment, Fisheries and Aquaculture Science - which investigated the deaths for DEFRA - that a combination of two algal blooms was to blame. Time was when a traditional British Halloween involved little more than apple-bobbing and maybe a carved pumpkin for one night only. Nowadays it's a huge industry worth more than £600 million pounds. We visit Richard Bower, who grows 20 acres of pumpkins on his farm in Staffordshire, and now makes over £200,000 from his pick-you-own experience. And agroforestry - where trees are integrated to arable fields or pasture - could mean for some, producing nuts alongside more traditional field crops. So is there a market for UK grown nuts? Presented by Anna Hill Produced for BBC Audio in Bristol by Heather Simons