Volume 19 Number 3, 2004

Research reports

Effects of mixed cropping on the population abundance of Aphis gossypii Glover and coccinellids on chilli. J.L. Chong, A.B. Idris and M.N. Mohamad Roff.

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The susceptibility of Chinese wormwood (Artemisia verlotiorum Lamotte) to various herbicides. Rebecca Breaden and Trevor Armstrong.

96

Experimental inoculations of the rust fungus Puccinia xanthii, a biological control agent against Noogoora burr (Xanthium occidentale) in northern Australia. Veronica Edgar and Blair Grace.

98

Economic benefits of a recent research program into controlling serrated tussock in south-eastern Australia. D.T. Vere, G.R. Griffith and R.E. Jones.

102

Biological control of the papaya mealybug, Paracoccus marginatus (Hemiptera: Pseudococcidae) in Guam. D.E. Meyerdirk, R. Muniappan, R. Warkentin, J. Bamba and G.V.P. Reddy.

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Seminar proceedings: What is new in the cropping world?

Avoiding the penalties of spray drift with a practical look at glyphosate. Les Toohey.

115

New application techniques and nozzles. Peter Alexander.

117

Interaction of nozzles with spray fluids on droplet drift. J.H. Combellack.

119

Trends in herbicide formulation development. Anthony Flynn and Philip Pentland.

125

The ecology of common heliotrope in a Mediterranean dryland cropping system. James Hunt, Roger Cousens and Sue Knights.

126

Managing weeds in pulses – the wiping alternative. Katherine Hollaway.

127

Predicting clodinafop efficacy. T.S. Andrews, R.W. Medd, R. van de Ven and D.I. Pickering.

128