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The use of covers to reduce cabbage root fly and caterpillar damage in white cabbage crops

, : The use of covers to reduce cabbage root fly and caterpillar damage in white cabbage crops. Bulletin OILB/SROP 15(4): 155-167

The effectiveness of 2 polyethylene nets and 2 non-woven polypropylene fleeces in controlling cabbage root fly Mamestra brassicae and Pieris rapae on cabbages was studied in Belgium during 1990-91. The covers were placed over crops shortly after planting and removed after various intervals of time. Good control of D. radicum was achieved with treatment with chlorpyrifos and by covers removed 4-5 weeks before harvest.

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