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Using Bait Solutions Containing Bt for Onion Maggot Control 1997

Project Leader: Jan van der Heide


Evaluate the effectiveness of sugar bait solution containing Bt for the control of onion maggot flies in commercial onion production.


The average percentage of onion maggot-damaged plants in the cages with Bt bait solution was 19.2, while the average in cages without the Bt was 62.9. While the Bt bait solution does not appear to be a stand-alone method, it would fit well into an IPM strategy and would complement soil insecticides.