Habitats:Origin and History:
Management and Control:Use sorghum midge resistant varieties. Varieties have a midge rating system where a rating of 7 indicates that it will have 7 times less damage than a susceptible variety.
Thresholds:Adults only live for about a day and the populations in the crop may vary widely from day to day as new adults emerge or migrate from adjoining areas. Monitor daily and spray when there is more than 1 midge per head. Rates of insecticide are often increased in heavy infestations and repeat spraying may be required.
Related Species:Zeuxidiplosis giardi (introduced to control the weed St Johns Wort).
Acknowledgments:Collated by HerbiGuide. Phone 08 98444064 or www.herbiguide.com.au for more information.