Summary of 1976 field trials

Doublegee seed longevity. Doublegee control. Crop yield loss - doublegee. Creeping knotweed. Guildford grass. Time of spraying 2, 4-D. Longevity of doublegee seed under continuous pasture. Locality: Avondale, Wongan Hills and Chapman Research Stations. Effect of double cropping, shallow dry cultivation and spraying pasture on viable doublegee seed - 74A4. Locality: Avondale Research Station. Effect of doublegee cropping, shallow dry cultivation and spraying pasture on viable doublegee seed - 74WH4. Locality: Wongan Hills Research Station. Doublegee seed longevity x cultivation - 75WH65. Locality: Wongan Hills Research Station. Doublegee seed longevity x cultivation - 74C7. Locality: Chapman Research Station. Doublegee seed longevity x depth - 75WH66. Locality: Wongan Hills Research Station. Doublegee control in pasture - 76C4. Locality: Chapman Research Station. Doublegee control in pasture - 76A8. Locality: Avondale Research Station. Doublegee control in pasture - 76WH50. Locality: Wongan Hills Research Station. Crop yield loss due to doublegee - Sites: Chapman, Bindi Hindi, Wongan Hills, Northam. Crop yield loss due to radish - 76KA7. Locality: D. Hore - Katanning. Guildford grass control - 76AL11. Locality: T. W. & S.M. Ferguson, Narrikup Creeping knotweed control - 76KE15. Locality: L. Giglia - Dandanup. Time of spraying - E,4-D - 76MO6. Site: Radish infested crop - M. Anspach - New Norcia. Weed free crop - G. & J. McKinlay - Moora