Terms and Conditions. Terms and Conditions are available upon request and supplied before point of purchase. NexGen supports your forestry and the environment. Let's talk. Search for: Recent Posts NexGen research and development update : November 2021 Gary Hurlstone featured on BBC Countryfile NexGen featured on Kate Humble’s ‘Escape to the Farm’ Gary Hurlstone interviewed for Radio4 Farming Today. Thank you.