An experiment was conducted at Narrabri Agricultural Research Station during the 1991-92 season to investigate the response of a range of currently available cotton varieties to irrigation and nitrogen treatments.

Cotton growers began to realise in the late 1970's that compaction of clay soils may have been a cause of declining yields. Research over the last 10 years has confirmed those suspicions.

Any agent which reduces damage caused by heliothis is a valuable asset.

The genetic material (DNA) of living organisms is structurally the same whether it is found in humans, plants, fungi or bacteria.