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Control of stem nematode, Ditylenchus dipsaci Coat race‘), by aldicarb and resistant crop plants
Author(s) -
WHITEHEAD A. G.,
TITE D. J.,
FRASER J. E.
Publication year - 1983
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1983.tb02767.x
Subject(s) - biology , aldicarb , nematode , agronomy , crop , sowing , sugar beet , meloidogyne javanica , nematology , horticulture , pesticide , ecology
SUMMARY Aldicarb at 1.5 or 4.5 kg ha ‐1 applied around the seeds at sowing greatly increased the yields of a range of crop plants in soil heavily infested with stem nematode ( Ditylenchus dipsaci , ‘oat race’). Yield responses could be largely explained by stem nematode control in onions, field beans, peas, Manod oats and maize but not in wheat, Maris Tabard oats, lucerne or sugar beet. Aldicarb lessened stem nematode attacks and lessened stem nematode increase in host plants. The supposedly resistant oat Manod was susceptible, whereas Maris Tabard was resistant, as were Peniarth, Pennal, Panema, Pennant, Maris Quest and Milford, whose resistances derive from Grey Winter. Maris Tabard outyielded resistant Panema, Peniarth and Pennal and susceptible Maris Osprey and Manod on infested soil. ‘Tulip root’ is not an infallible guide to susceptibility of oats to stem nematode. We advocate using a mixture of nematode populations in breeding for resistance to stem nematodes.