Abstract
DURING last year an unusually severe attack by wheat midge larvæ, Contarina tritici (Kirby) and Sitodiplosis mosellana (Gehin), caused serious damage to wheat crops in some districts in Ireland, particularly in the southern counties. C. tritici was very much the predominant species, and so the damage caused was due mainly to sterility of the florets. In exceptional cases the estimated damage was as high as 70 per cent. The damage varied considerably in different counties; but there was also great variation between different districts in the same county and, indeed, between different fields on the same farm. The loss of crop due to midge attack was estimated at 30 per cent in County Wexford, 20 per cent in County Cork, 15 per cent in County Water-ford and 10 per cent in County Limerick.
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References
Wahlin, B., Växtskyddsnotiser No. 2 (1949) från Statens Växtskyddsanstalt, Sweden.
Wahlin, B., Växtskyddsnotiser No. 5 (1945).
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MULLIN, J., FOX, D. & BRADY, J. Wheat Midge. Nature 169, 629–630 (1952). https://doi.org/10.1038/169629a0
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DOI: https://doi.org/10.1038/169629a0
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