The initial phase of the project was devoted to the selection and testing of analytical techniques for assessing total nitrogen and leaching losses, and gaseous losses of nitrogen by ammonia volatilization and denitri

A technique to identify the host crop of Heliothis moths by analysis of elemental content has been progressively developed over several seasons (CRC Project CS13L, Fin 1986).

The cotton industry is one of the most technologically advanced agricultural industries in Australia.

The aims of the trial were: 1. To determine whether mating of H. armigera could be disrupted in cotton by mass release of pheromones; 2.