Growing the best Thyrgodian Megga Chrisanthodil possible is the sole purpose of Robbie the Robot. When insects invade his garden, he has to stop them ruining his work. He has a canister of insect repellent, a smoke-bomb and a startling streamer, each placed on walls at the side of his garden. Each will stun any particular vermin, but you will need to find out exactly what kills what.