Organisms Commons^™

Barley Foliage Diseases, T N. Khan, K. Brain, M Judges

Experimental Summaries - Plant Research

General comments and highlights

Scald: Effect of time of application - 83BA10, 83MT9.

Scald: Effect of rate of fungicide – 83BA11.

Scald: Comparing fungicides – 83BA42.

Scald: Effect of seeding rate – 83BA12, 83MT10.

Scald: Response to fungicide in farmer's field – 83AL18, 83AL81, 83AL82.

Scald: Variation in pathogenicity – 83AB11, 83BA13, 83MT11, 83WH7.

Scald: Cultivar x fungicide in farmer's field – 83LG63.

Net Blotch: Potential yield losses – 83A15, 83BA15, 83WH6.

Net Blotch: Screening new fungicides – 83BA43.

Spot-type net blotch: Potential yield losses – 83C5.

Spot-type net blotch: Sources of resistance - Chapman Research Station, Nabawa.

Powdery mildew …

Plant Viruses, G D. Mclean

Experimental Summaries - Plant Research

1. Alfalfa mosaic virus: incidence in white clover. McLean, G.D., Weir, J.A., Russell, W.K., Speijers, E.J. and Price, L.K. - 83HA30, 83HA31, 83HA32, 83HA33, 83HA34, 83HA35, 83HA36, 83HA37, 83HA38, 83HA39. 2. Alfalfa mosaic virus: re-infection in white clover. McLean, G.D., Weir, J.A., Russell, W.K., Price, L.K. and Speijers, E.J. – 83HA43, 43HA44, 43HA45, 43HA46, 83HA47, 83HA48, 83HA49, 83HA50, 83HA51, 83HA52. 3. Lettuce necrotic yellows virus: incidence. McLean, G.D., Phillips, D.R., Speijers, E.J. Sandow, J.S. and Price, L.K. – 83PE21, 83PE22, 83PE23, 83PE24, 83PE25, 83PE26, 83PE27, 83PE28, 83PE29, 83PE30.

Survey Of Fungi Associated With Diseased Lupin Roots, M Sweetingham

Experimental Summaries - Plant Research

1. Survey of fungi associated with diseased lupin-roots. Cylindrocarpon was only encountered on the south coast (Albany and Esperance districts). The isolates were identified as c. didymum and c. destructans. At certain sites in the two northern districts (Geraldton and Moora) a distinct type of disorder, characterised by reddish-brown coloured lesions which develop on the below ground portion of the hypocotyl, was observed. 2. Assessment of lupin root disease in lupin permanent disease nurseries – 78WH20, 78BA51, 78C34, 78MT38, 80E21. 3. Effect of fungicide drenches on lupin root rots – 83MT17, 83WH9. 4. Mini plot seed treatment trials on lupins …

Lupin Diseases, P Mcr Wood

Experimental Summaries - Plant Research

Fungicide treatment of lupin seed - 83GE45, 83GE46, 83GE47. Fungicide treatment of lupin seed in polyculture - 83NO48, 83BU21. Levels of Pleiochaeta in different organic fractions - 83AL51 (2 sites). Phomopsis levels on post-harvest samples - 83AL51.

Clover Scorch Fungicide Trials, Cercospora Leaf Spot Of Sub Clover, Lupinosis Control., A Bokor

Experimental Summaries - Plant Research

82 AL 60, Clover scorch fungicide trials. Aim: Test a range of new fungicides for clover scorch control in comparison with Benlate. Comments: DPX 164-2 and Bavistin gave excellent disease control even at the lower rate. Benlate and Tilt were still satisfactory but control was not as good at the lower rate. Bayleton and Baycor gave some disease control but only at the higher rate. Cercospora leaf spot could be found on most plots with careful search. Economically important damage has occurred only on a few plots. Pseudopeziza leaf spot was notably absent during this season compared with others. 83 …

Summary Of Experimental Results 1982., M J. Barbetti

Experimental Summaries - Plant Research

Cercospora disease of sub-clover fungicidal control of cercospora disease on sub-clover. 82M04, 82M05. Aim: To determine the efficacy of several fungicides in controlling Cercospora disease of subterranean clover. 82AL19, 82BU2. Aim: To test the effectiveness of various seed treatments for controlling seed-borne and soil-borne damping-off and root rot causing fungi so as to allow successful stand establishment in root rot affected areas. Rapeseed, yield losses from white leaf spot. 82MT4. Aim: To determine the yield losses from white leaf spot and grey stem (Pseudocercosporella capsellae) on a range of rapeseed varieties.Rapeseed effect of fungicides on white leaf spot of rapeseed. …

Foliar Diseases Of Wheat., A. G.P. Brown

Experimental Summaries - Plant Research

Leaf diseases in the wheatbelt. Fungicides to control Septoria nodorum. Fungicide rate. Fungicides on yellow spot. Effect of stubble residues on septoria. Septoria: economic control on farm crops. 82Ba38 82BA37

Summary Of Experiments., T. N. Khan, K. Brain, G. Oldfield

Experimental Summaries - Plant Research

(I) General comments and highlights. (II) Scald: Fungicidal control. 82BA21, 82E18, 82MT19, 82WH23, 82WH23. (III) Scald: Opportunity trial on fungicidal control. 82AL85, 82BA22, 82MT20. (IV) Scald: Epidemic in segregating populations. (V) Scald: Host reaction in hill plots and single plants. 82MT21, 82BA23, (VI) Scald: Seeding rate in evaluating cultivars for resistance. 82MT22, (VII) Net-type net blotch: Screening fungicides. 82BA25, 82KA25. (VIII) Net-type net blotch: Reactions in single plants and hill plots. 82A3, 82BA26. (IX) Spot-type net blotch: Screening fungicides. 82C16. (X) Spot-type net blotch: Potential yield losses. 82C14, 82C15. (XI) Effect of simulated stubble mulching on disease and yield. 82BA36, …

Plant Viruses., G. D. Mclean, L. K. Price, J. A. Weir, J. M. Allen, P. Fievez, P. A. Portmann, R. J. Mclean, J. D. Sandow

Experimental Summaries - Plant Research

Clover viruses, 82ES38, 82AL47, 82MA19, 82BR19, 82BY29; 82BU5, 82HA9. Lupin virus, diseases. Barley yellow dwarf virus, 82AL46, 82AL51, 82B10, 82BA33, 82BR16, 82BR18, 82C29, 82E27, 82ES37, 82ES40, 82JE19, 82JE20, 82KA33, 82KA34, 82ABI3, 82MA18, 82MN22, 82MT34, 82NA32, 82WH28,82B8, 82MN17, 82E24, 82MT30, 82E25, 82MN18, 82MT31, 82B9, 82ABI2, 82BA31, 82C26, 82JE17, 82WH27, 82AL45, 82BR17, 82ES39, 82MA1, 82MA117, 82MT33,

Diseases Of Lupins And Lupinosis., P M. Wood

Experimental Summaries - Plant Research

Lupin diseases, 82 TS 30, 82 TS 29, 82 TS 28, 82 GE 24, 82 ME 45, 82 ME 46, 82 BR 20,

Loose Smut Of Barley. Sub-Clover Root Rot. Rapeseed Diseases., M. J. Barbetti

Experimental Summaries - Plant Research

Loose smut of barley. Fungicidal control of loose smut in barley – 81MT31, 81NA29. Sub-clover root rot. Fungicidal control of pythium sp – 81AL37, 81BU3. Rapeseed diseases. 1. Rapeseed varieties/Lancelin blackleg strain – 81MO24. 2. Rapeseed varieties/Sclerotinia disease – 81MT32. 3. White leaf spot and grey stem of rapeseed – 81MT33.

Barley Disease, Scald, Spot Type Net Blotch, Powdery Mildew, Leaf Diseases, Double Cropping, Resistance Of Cvt Barley, T N. Khan

Experimental Summaries - Plant Research

I. Barley disease survey and an unidentified disorder on forrest barley. II. Scald: crop loss assessment – 81BA20, 81A17, 81MT23, 81WH30, 81A17, 81BA20, 81MT23, 81WH30, III. Scald: epidemics in simulated populations segregating for scald resistance – 81BA22, 81MT25, 81BA22, 81MT25. IV. Scald: reactions in single plant and hill plots – 81MT24, 81MT21, 81BA21, V. Spot type net blotch: crop loss assessment – 81C17. VI. Net blotch: effect of grazing on infection levels – 81A20. VII. Powdery mildew: crop loss assessment – 81PE5. VIII. Value of whole plot scores in assessing leaf diseases. IX. Disease and yield in simulated double cropping …

Clover Scorch Fungicide Trials, Cercospora Leaf Spot, Facial Eczema Investigation., A Bokor

Experimental Summaries - Plant Research

Clover scorch fungicide trials – 81AL33, 81D8. Cercospora leaf spot – 81AL35. Facial eczema investigation - In W.A. a serious outbreak of this disease has occurred on mixtures of annual and perennial species in the autumn.

Septoria Diseases Of Wheat, A. G. P. Brown

Experimental Summaries - Plant Research

Effect of stubble on septoria infection. Avondale, Badgingarra, Chapman, Esperance, Kojonup, Mt Barker, Newdegate, Wongan - 81BA47, 81BA48.

Growth Regulator Trials. Part 1, M W. Perry, R N. Weir

Experimental Summaries - Plant Research

This summary covers 1981 trials on chlormequat plant growth regulant (formulated as Cycocel 750A or Halloween), ECO organic seed dressing and a range of organic foliar sprays. Rates and times of application of chlormequat on wheat. 81A22, 81BA3, 81Cl8, 81E25, 81M22, 81MT2, 81N4, 81SG36, 81WH4. Effects of chlormequat on wheat varieties (S4 trials). 81A6, 81BA7, 81C6, 81E6, 81M9, 81M13, 81MT9, 81N10, 81SG26, 81WH19. Trials comparing organic seed treatments, organic foliar sprays and plant growth regulators. 81WH61, 81LG34, 81LG48, 81ME27a, 81ME276, 81TS39, 81ES51, 81ES52, 81ES53, 81ES54, 81NA57, 81N4A, 81MT2A, 81TS38A. H. McCashney, Cadoux Un-numbered, Newdegate Research Station.

Diseases Of Lupins And Lupinosis., P Mcr Wood

Experimental Summaries - Plant Research

Summary of experimental results, 1981. Geraldton: Brown spot (Pleiochaeta setosa) was widespread. Root rots were not considered generally to be a problem in 1981.Three Springs: Fungal root rots were commonly observed. Brown spot leaf and stem infection was also prevalent. Moora: Brown spot was the most prevalent. Northam: Crops were generally healthy. Albany: Crops were generally healthy Sclerotinia being present. Bridgetown: Brown spot was the main disease present. Root rots were also present. In December, a widespread disorder occurred, Late brown spot infection is suspected. An important point emerging from the programme is that often the lines showing Phomopsis resistance …

Screening Of Clovers For Resistance To Clover Scorch, D. L. Chatel

Experimental Summaries - Plant Research

Clover Scorch (Jointly with Dr C.M. Francis). One thousand four hundred and seventy six legumes were screened in the field at the Denmark Research Station for susceptibility to clover scorch. They comprised 1440 subterranean clovers, eight other Trifoliums, two medics and 26 serradellas. The clovers from Australia gave interesting results. Thirty four of them were selections of Seaton Park, chosen by R.C. Rossiter and W. J. Collins on the basis of their variation. They did not differ in their reaction to clover scorch; all gave rating of 9. Twenty-six lines of Woogenellup from W.A. and 12 of Woogenellup and Morrar …

Legume Diseases, P Mcr Wood

Experimental Summaries - Plant Research

Lupin root disorder. Resistance to lupins to Phomopsis leptostromiformis (Fungal ratings by P. McR. Wood and F.M. O'Donnell, data compiled by J. Hamblin, Plant Production Division) Phomopsis levels on any particular genotype are influenced by environment. Therefore material selected for Phomopsis resistance is done so on its being better than average over all sites. Data for the Plant Breeders' S2-l trial at Avondale (ARS), Badgingarra (BRS), Chapman (CRS), Esperance (ERS) and Mt. Barker (MTRS) are shown in Table 3.

Screening Of Clovers For Resistance To Clover Scorch, D L. Chatel

Experimental Summaries - Plant Research

One thousand one hundred and seventy clover cultivars, varieties and crossbreds were screened in the field for susceptibility to the clover scorch disease fungus.

1979 Summary Of Experiments, T N. Khan

Experimental Summaries - Plant Research

79MT22 Mid season sown experiment, Mt Barker 79BA25 crop loss assessment trials, Badgingarra 79MT49 scoring system for leaf diseases, Mt Barker 79BA24 Inter-plot interference at various distances in Net Blotch, Badginarra Research Station 79WH17 Inter-plot interference at various distances in Net Blotch, Wongan Hills Research Station 79BA21 Inter-plot interference at various distances in Barley Scald, Badgingarra Research Station 79MT23 Inter-plot interference at various distances in Barley Scald, Mt Barker Research Station 79BA53 Scald nursery, Badgingarra 79BA54 Net Blotch nursery, Badgingarra 79WH52 Net Blotch nursery, Wongan Hills 79BA20 Crop loss assessment, Badgingarra Research Station 79BA22 Evaluating differences in field reaction of …

Summary Of 1975 Field Experiments With Advisers: "Rape Blackleg Disease Fungicide Trials", M J. Barbetti

Experimental Summaries - Plant Research

During 1973 and 1974 a large range of fungicide spray and seed treatment schedules were tested. The 1973 results were, on the whole, not very encouraging, but the very early post-germination spray, two weeks after germination, did indicate a possible means of control. In view of the 1973 results, in the 1974 trials fungicidal sprays were applied early, and a new method of application of fungicide to the seed, known as "prilling" was used. Using fungicide seed prills and seedless fungicide prills the idea was to have the fungicide mixed with materials which dispersed upon wetting, so releasing and making …

Time And Rate, Comparative Fungicide, Fungicide Application Method Trial, Clover Scorch Economy Demonstrations, A Bokor

Experimental Summaries - Plant Research

Time and Rate Trial 75AL33 Comparative Fungicide Trial 75AL34. Fungicide Application Method Trial 75D8. Clover Scorch Economy Demonstrations 75AL35.