Quite often the rapid-increase phase of mouse populations is not fully recognised until numbers have started to approach plague proportions. At this point damage has already become serious and averting further damage to crops is made extremely difficult because of the size and distribution of the mouse population.
Theoretically, plagues can be predicted using rainfall patterns and vegetation response. However, predictions are not always correct, particularly on a local scale. In recent decades, mouse plagues have occurred more frequently as isolated outbreaks than as a widespread problem which once would have affected nearly all grain growing areas in south-eastern Australia. For this reason it is increasingly important for landholders in all areas to be vigilant in monitoring their own crops.
|Author||NSW Department of Primary Industries|