Once is enough

Also in this issue:

Resources for tomorrow

Filling a blank

Understanding malaria

Multi-purpose greenbelts

Tougher turf

Biological control of woolly whitefly

Applying phosphorus through drip irrigation systems

Walnut blight control

Reducing set in ruby seedless grapes with gibberellin

Increasing growth and yield of ‘thompson seedless’ vines by trellising

Pear and apple scab control

Influence of variety and cutting stage on oat hay yields

The adaptation of qualitative and quantitative techniques for determination of radioactive dalapon in plant tissues