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1 August 2007 Host Plant Susceptibility to the Swede Midge (Diptera: Cecidomyiidae)
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Abstract

The relative resistance and susceptibility of various cruciferous plants to swede midge, Contarinia nasturtii (Kieffer) (Diptera: Cecidomyiidae), damage was investigated to provide growers with planting recommendations and to identify potential sources of resistance to the swede midge. Broccoli cultivars experienced more severe damage than cabbage, cauliflower, and Brussels sprouts. The broccoli ‘Paragon’, ‘Eureka’, and ‘Packman’ are highly susceptible to the swede midge, whereas ‘Triathlon’ and ‘Regal’ showed reduced susceptibility to damage and slower development of damage symptoms. No differences were found between normal and red cultivars of cabbage and cauliflower in damage severity and progression of damage symptoms. Four new plant species (Brassica juncea Integlifolia group, Erucastrum gallicum (Willd.) O. E. Shulz., Lepidium campestre (L.) R.Br., and Capsella bursa-pastoris (L.) Medic.) are reported as hosts of the swede midge. The weed species Descurainia sophia (L.) Webb, Camelina microcarpa Andrz. ex Dc., and Erysimum cheiranthoides L. exhibited no damage symptoms, and they seem to be nonhost crucifers for the swede midge.

Rebecca H. Hallett "Host Plant Susceptibility to the Swede Midge (Diptera: Cecidomyiidae)," Journal of Economic Entomology 100(4), 1335-1343, (1 August 2007). https://doi.org/10.1603/0022-0493(2007)100[1335:HPSTTS]2.0.CO;2
Received: 8 September 2006; Accepted: 2 April 2007; Published: 1 August 2007
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