THE DISTRIBUTION OF AVENA FATUA L., AVENA STRIGOSA SCHREB. AND AGROPYRON REPENS (L.) BEAUV. IN BARLEY CROPS IN THE WEST OF SCOTLAND

Waterson, H. A.; Davies, Gareth

doi:10.1111/j.1365-3180.1973.tb01263.x

Cited by 3 publications

(7 citation statements)

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“…Comparisons can also be made with two other surveys. In West Scotland 16% of cereal area was infested with wild oat in 1977 compared with 0-8 % of barley area in 1969 (Waterson & Davies, 1973). In N. Ireland 16 % of cereal area was infested in 1977 compared with about 25% of barley area in 1975 (Courtney & McCallion, 1976).…”

Section: Area Of Occurrencementioning

confidence: 99%

“…According to Perring & Walters (1976) A. strigosa has been rarely seen in England since 1930 but is more common in the Hebrides. Waterson & Davies (1973) found it most in Argyll and Bute.…”

Section: Introductionmentioning

confidence: 97%

“…England, 63% of N. England, 25% of E. Scotland and15% of N. Ireland was infested. In 1969, Waterson &Davies (1973) found only 0-8% of the barley area of West Scotland to be infested with wild oat (A. fatua and A. strigosa), although the weed was found on 18 % of known barley growing farms. Courtney & McCallion (1976) surveying 5098 fields in N. Ireland in 1975 recorded wild oat on 34 % of cereal holdings: one quarter of the barley area contained wild oat.…”

Section: Introductionmentioning

confidence: 99%

“…There appears to have been no large-scale survey of couch grass, though Waterson & Davies (1973) found common couch on 77 % of barley-growing farms in West Scotland.…”

Section: Introductionmentioning

confidence: 99%

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Survey of the presence and methods of control of wild oat, black grass and couch grass in cereal crops in the United Kingdom during 1977

et al. 1979

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In summer 1977 a random survey was made of 2250 fields on 1153 farms selected throughout the United Kingdom. Wild oat, Avena spp., was surveyed in all countries; black grass, Alopecurus myosuroides, was surveyed in England and Wales; and couch grass, including Agropyron repens and other perennial grasses, in Scotland and N. Ireland.Wild oat was reported by farmers on 95 % of farms in England, 34 % in Wales, 65% in Scotland and 30% in N. Ireland; the areas of infestation in the different countries were 67, 13, 37 and 16 % respectively. The majority of wild oat was A.fatua. Only 6 % of the cereal area of U.K., including sprayed and unsprayed fields, contained more than one wild oat seed head/m 2 (10000/ha), the majority had less than one/20 m 2 . Black grass was reported on 50 % of farms in England (22 % of cereal area) mainly in East and South, and on 2 % of farms in Wales. Couch grass occurred on 92 % of farms in Scotland and 68 % in N. Ireland: areas of infestation were 88 and 67 % respectively. Most of the infestations of all three weeds had been present for longer than 5 years.Most farmers intended to eliminate or reduce wild oat and few proposed to hold the weed at its present level or do nothing. [Herbicides were used against wild oat on approximately half of the infested area in England and Wales, with proportionately more use in Wales and much less in Scotland and N. Ireland. A third of the black grass infested area of England was treated with a herbicide. There was little spraying against couch grass in Scotland and N. Ireland. Details of dose, time of application and mixing of chemicals were obtained. Wild oat was subsequently found on most of the area treated against this weed, similar observations were made of black grass and couch grass. Most farmers considered herbicide performance good or excellent and those in East and South England believed wild oat to be decreasing as a problem; farmers elsewhere thought the problem to be increasing.Hand pulling of wild oat (roguing) had occurred on only one tenth of the infested area but a greater area was intended to be rogued after the survey visit. Much of the land that had been rogued was found subsequently to contain few wild oats.The survey provided information on associations between weed presence, soil type and cropping system, the types of herbicide used and farmers' impressions of their performance. Comparisons are made with previous surveys in 1972, and information on the disposal of the 1976 crop of straw and on types of cultivation used in different regions is provided. The implications of the results are discussed.

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Section: Area Of Occurrencementioning

confidence: 99%

“…According to Perring & Walters (1976) A. strigosa has been rarely seen in England since 1930 but is more common in the Hebrides. Waterson & Davies (1973) found it most in Argyll and Bute.…”

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

“…There appears to have been no large-scale survey of couch grass, though Waterson & Davies (1973) found common couch on 77 % of barley-growing farms in West Scotland.…”

Section: Introductionmentioning

confidence: 99%

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Survey of the presence and methods of control of wild oat, black grass and couch grass in cereal crops in the United Kingdom during 1977

et al. 1979

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“…Pfeiffer (1968) estimated that 405000--607500 ha(I-U million acres) of England and Wales were infested with wild oat, the data being obtained by the field representatives of a commercial firm. Waterson & Davies (1973) reported on the wild oat situation in the West of Scotland in 1969 and recently there have been local surveys conducted by the Agricultural Development and Advisory Service (ADAS). However, none of these surveys can be compared to show changes of distribution and still less, changes in density of population.…”

Section: Origin Of Surveymentioning

confidence: 99%

Survey of the presence of wild oat and blackgrass in parts of the United Kingdom

Phillipson

1974

Weed Research

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avoine. En moycnne 10?^ seulemcnt de la surface infcsl^c a recu un trailcmenl hcrhicide contrc la follc-avoinc et le vulpin, bicn que dans ccrtaines regions il a tte traitfi jusqu'i 23%. L'6poque du Iraitcmcnl ct t'hcrbicidc ulilisi ont dt6 nol^s. ainsi qu'une inrormalion sur l'importunce de Tusagc ct la nature dc I'hcrbicidc utilis6 cootrc les dicotylidones. Des precisions sur tes dates dc semis des ptantes cuitiv^cs. le precedent cultural, les infestations ant^rieures, Ie type de sul et t'ctiit du drainage, ont ^t^ obtcnues et ont t\.h coiifronl6es avec l'incidcnce de la follc-avoinc et du vulpin \k ou ils ^taient en cause. Summary: Resume: ZusammenfassungThe survey was carried oui over an area representing about 47% of the cereal acreage of the United Kingdom.Estimates of the acreage of tields containing wild oat (Arena fatiia L. and A. luitoviciana DurJ ranged from \5^a (Northern Ireland) to 74 "" (England. South West Region). The degree of infestation over the total acreage was 58/" Might", 34/i 'medium', and %% 'heavy'.Blackgrass (Alopecurus myo.wroiJcs Huds.) was found only in the central and southern regions, estimates of the infested cereal field acreage ranging from 2% (Wales) to 23% (South East England).Nine per cent of ihe tields were rogucd for wild oat. On average, only I0"o of the infested acreage received herbicide ireatment for wild oat and blackgrass though, in some regions, up lo 23 % was treated. The timing of ireatment and the herbicide used were recorded. Information on the extent and type of herbicide used for broad-leaved weeds was also recorded. Data on sowing dates of the crops, the previous cropping, previous infestations, the soil type and the state of field drainage were obtained and were correlated with the incidence of wild oat and blackgrass where relevant. Royaume-Uni en 1972 Vue d'ensemble sur la presence dc folles-avoines et de vulpin en divers paints du

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On “Weed Research” Vol. 13

勝司¹,

英雄²,

実³

et al. 1975

J. Weed Sci. Tech

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THE DISTRIBUTION OF AVENA FATUA L., AVENA STRIGOSA SCHREB. AND AGROPYRON REPENS (L.) BEAUV. IN BARLEY CROPS IN THE WEST OF SCOTLAND

Cited by 3 publications

References 1 publication

Survey of the presence and methods of control of wild oat, black grass and couch grass in cereal crops in the United Kingdom during 1977

Survey of the presence and methods of control of wild oat, black grass and couch grass in cereal crops in the United Kingdom during 1977

Survey of the presence of wild oat and blackgrass in parts of the United Kingdom

On “Weed Research” Vol. 13

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