Tag Archives: mites

Helicoverpa activity and other pests to watch for in winter crops.

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Helicoverpa armigera active now. This spring a number of agronomists have just started monitoring pheromone traps across the northern region, and the results from the past two weeks illustrate how useful pheromone traps can be. Over the past 1-2 weeks, the traps are catching relatively high numbers of Helicoverpa armigera, and low catches of H. punctigera. In September it is generally assumed that… Read more »

Spring pests of winter cereals

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Armyworm in barley and wheat. A number of reports of armyworm in crops have been received over the past couple of weeks. Numbers range from 30 to 50 per square metre (extreme) to a more typical 5 to10 larvae per square metre. Assessing larval density is done using a sweep net, bucket or beating a section of row into a… Read more »

Mites invade mungbeans

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Two spotted mites (TSM) or red spider mites have been reported in damaging numbers in many mungbean crops on the Darling Downs and in Northern NSW.  Crops at particular risk are those adjacent to maturing cotton (or any other mite hosts) from which mites are dispersing in large numbers.  As TSM are very small (0.5 mm) the first evidence of their… Read more »