Volatile plant compounds are essential for host plant selection by herbivores and particularly important for the behaviour of parasitoids seeking larvae in which to lay eggs. Headspace extracts were collected from intact plants of four Brassica oleracea genotypes. as well as from plants damaged by larvae of Mamestra brassicae or Pieris rapae. In total. https://www.roneverhart.com/2024-Floral-Halloween-Cookie-Card-3-5-x-5-Pre-Printed-Pack-of-25/