South west sub-clover root rot - 1976 cultivation experiments

South-west sub. clover root rot 1976 cultivation experiments - Karridale 75BU11, Walpole 75DE12, and Narrikup 75AL36. South-west sub. clover root rot 1978 lime trial - Narrikup 77AL5. Fungicidal control of rapeseed damping-off - Mt Barker Research Station, 78MT12. White rust (Albugo) of rapeseed 1978 - Mt Barker Research Station - 78MT13, Albany - 78AL6, Bridgetown - 78BR3

Medic cultivar resistance to Phoma blackstem disease.

Location: Katanning, South Perth, Denmark, Kerridale, Woogenelllup, Mount Barker Research Station, Seaton Park, Esperance, Daliak, Dinninup, Green Range, Yarloop, Jerramungup and Corrigin. Trial 87KA11 To screen medic lines for resistance to Phoma blackstem disease (caused by the fungus Phoma medicaginis) Trial 87GL8 : Screening medics for Phoma blackstem resistance. To develop a reliable glasshouse screening technique for assessing levels of resistance to Phoma blackstem disease in Medicago line.s. To compare these glasshouse obtained results with disease resistance scores for the same Medicago lines sown in the field at Katanning. Trial 87KA10 : Fungicidal control of Phoma blackstem disease of medics. To test the effectiveness of various fungicide sprays for control of Phoma blackstem disease (causal fungus Phoma medicaqinis) on medics. Trial 87GL9 : Medic cultivar susceptibility to sub. clover root pathogens. To test medic cultivars for their susceptibility to sub.clover root pathogens (to determine if sub.clover root pathogens will be a problem to medics grown on old sub.clover land). Trial 87AL12 : Grass clover rotation for control of sub.clover root rot. To determine if complete removal of subterranean clover from a pasture for one season will result in root rot control and subsequent increased production in subterranean clover cultivars regenerating on these areas in the following season. Trial 87GL7 : Sub.clover cultivar susceptibility to Phytophthora clandestina. To investigate the effect of temperature regime on sub.clover cultivar resistance to Phytophthora clandestina. Trial 87GL5 and 87GL5b: Screening subterranean clover for resistance to Kabatiella caulivora. To screen advanced subterranean clover lines against isolates of Kabatiella caulivora. Trial JE5 : Fungicidal control of rust on cv. Green Range sub.clover To test the effectiveness of various fungicide sprays for control of rust (Uromyces trifolii-repentis) on subterranean clover cv. Green Range Trial 87NA12 : Effects of Dilophospora on annual ryeqrass toxicity (ARGT) gall numbers. To prevent annual ryegrass toxicity (ARGT) gall formation by applying inoculurn of Dilophospora alopecuri in ryegrass pasture. Trial 87MT, 87MT31 and 87MT22 : Susceptibility of rapeseed lines to blackleg crown canker To assess the susceptibility of rapeseed lines in a Plant Production interstate variety trial to blackleg crown canker, caused by the fungus Leptosphaeria maculans

1976 South west sub clover root rot - white rust on rapeseed

1. South west sub clover root rot - 1975 cultivation experiments - To investigate the effect of time of cultivation, and nitrogen application, upon the incidence and severity of both tap and lateral root rot of subterranean clover. Localities - Karridale (76BU1), Manjimup (75MA1), and Walpole (75DE1). 2. South West sub clover root rot - 1976 cultivation experiments - Localities - Karridale (75BU11), Walpole (75DE12), and Narrikup (75AL36). 3. White rust on rapeseed - Aims - To examine the role of white rust seed infection in disease aetiology and epidemiology, both in an area containing white rust infected trash and in an area deviod of such infected trash. To attempt to control both leaf and head white rust infections using a mancozeb fungicide as a seed treatment and in various spray schedules. Sites: Mt Barker Research Station (76MT11) and Denmark Research Station (76D8). White rust infected trash was present near the trial on Mt Barker Research Station but none was known to be present at Denmark Research Station. Variety: Brassica campestris var Span

Cercospora disease of sub-clover

Cercospora disease of sub-clover. Fungicide control of cercospora disease on sub-clover. Aim: To determine the effectiveness of various times and rates of application of benomyl for control of Cercospora disease (Cercospora zebrina) in sub-clover cv. Esperance. Locality: Bibby Springs (83MO4). Fungicide control of cercospora disease on sub-clover. Aim: To determine the effectiveness of various fungicides for control of Cercospora disease (Cercospora zebrina) in sub-clover cv. Esperance. Locality: Bibby Springs (83M03). Role of seed contamination and infection in cercospora disease on sub-clover. Aim: To determine the role of Cercospora zebrina seed contamination and infection in spreading Cercospora disease of sub-clover. Locality: South Perth Plots (83PE10). Treatments Esperance (82MO5). Sub-clover root rot. Effects of sprayseed® on sub-clover root rot. Aim: To determine the effects that. sprayseeding of an established pasture has upon subsequent root rot levels. Locality: Albany (83AL22); Scott River (83BU9). Sub-clover root rot. Apron 35w seed treatments for root rot control. Aim: To test the effectiveness of various rates of Apron 35W (Ridomil) seed treatment for control of sub-clover root. Locality: Albany (83AL20); Scott River (83BU7). Sub-clover root rot. Fungicide drenches for root rot control. Aim: To test the effectiveness of Ridomil and Benlate soil drenches for control of sub-clover root rot. Locality: Albany (83AL21); Scott River (83BU8). Rapeseed diseases. Fungicidal control of rapeseed damping-off. Aim: To investigate the possibility of using fungicides to control damping-off in rapeseed cv. Midas. Locality: Mt Barker Research Station (83MT13). Rapeseed diseases. Fungicide control of blackleg seedling infection. Aim: To test the effectiveness of fungicides for control of blackleg (Leptosphaeria maculans) seedling infection. Locality: Mt Barker Research Station (83MT14). Rapeseed diseases. Yield losses from and cultivar susceptibility to white rust. Aim: To determine the yield losses from and cultivar susceptibilities to white rust (Albugo candida) for a range of B. campestris rapeseed cultivars. Locality: Mt Barker Research Station (83MT15). Treatements: The fifteen cultivars used were: 78N03-2, 78N03-5, 78NO4-2, 78NO4-4, 78NO4-5, 78NO4-15, 78NO5-5, 4074-75, 4076-77, 4190-91, 6278-79, DRC-1, NSW Sel. 2, Jumbuck, Span. The trial was sown on June 21st. One half of the plots were sprayed with Ridomil MZ 5WP @ 2.5 kg/ha on August 25th, September 5th, September 20th, and September 30th. Rapeseed diseases. Yield losses from and cultivar susceptibility to white leaf spot. Aim: To determine the yield losses from and cultivar susceptibilities to white leaf spot (Pseudocercosporella capsellae) for a range of rapeseed lines. Locality: Mt Barker Research Station (83MT16)

Blackleg disease of rapeseed, loose smut of barley, foiliage diseases of sub-clover.

Blackleg disease of rapeseed. Control of seedling infection – 80MT36. Loose smut of barley. Fungicidal control of loose smut in barley – 80MT35, 80NA37. Foliage diseases of sub-clover. Role of trash in sub-clover foliage diseases – 80KA30

SUMMARY OF EXPERIMENTAL RESULTS 1979

BLACKLEG DISEASE OF RAPESEED CONTROL OF SEEDLING INFECTION To test the effectiveness of the fungicides RH-2161.EC and thiabendazole in controlling blackleg seedling infection in rapeseed. Mt. Barker Research Station (79MT21) FUNGICIDAL CONTROL OF LOOSE SMUT IN BARLEY To test the effectiveness of four fungicides in controlling two levels of loose smut seed infection, and to examine the relationship between the level of smut seed infection and the subsequent crop infection levels. Albany (79AL19); Narrogin (79NA14) LOOSE SMUT OF BARLEY METHODS OF PICKLE APPLICATION FOR CONTROL OF LOOSE SMUT IN BARLEY To test the effectiveness of various methods of pickle application for control of loose smut in barley Albany (79AL20); Narrogin (79NA15

Summary of experimental results 1982.

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. 82MT29. Aim: To determine the efficacy of several fungicides in controlling white leaf spot and grey stem disease (Pseudocercosporella capsellae) on rapeseed

Subterranean clover root rot. Seed treatments for root rot control

Subterranean clover root rot. Seed treatments for root rot control. Aim: To test the effectiveness of various seed treatments for control of root rot causing fungi so as to allow successful stand re-establishment – 85AL34, 85BU25, 85BU26, 85W8. Effects of various seed treatments on percent plant survival, tap and lateral root disease indices and on dry weight per plant for the Albany site - 85AL34. Effects of various seed treatments on percent plant survival, tap and lateral root disease indices and on dry weight per plant for the Wokalup site - 85W8. Fungicide drenches for root rot control. Aim: To test the effectiveness of various fungicide drenches in controlling root rot causing damping-off fungi in intact cores taken from root rot affected fields – Perth -85PE21 using intact cores from Albany, Karridale, Scott River and Wokalup. Effects of various fungicide drenches on plant survival, tap and lateral root disease indices, and top dry weights per plant in intact cores from Albany, Karridale, Scott River and Wokalup – 85PE21. Effect of various fungicide drenches on the incidence of fungi isolated from tap roots of cv Woogenellup growing in intact cores from a root rot affected field at Albany. Foliage diseases of subterranean clover. Cultivar susceptibility to and yield loss from foliage diseases – 85BU24. Foliage diseases of medics. Role of Phoma seed infection – 85KA57. Fungicidal control of blackstem disease of medics – 85KA55. Foliage diseases of pasture legumes. Cultivar susceptibility to Phoma blackstem disease – 85KA56. Rapeseed diseases. Susceptibility of rapeseed lines to blackleg crown canker – Mt Barker Research Station

Cercospora disease of subterranean clover, root rot, cereal smuts, rapeseed diseases

Cercospora disease of subterranean clover: - . Susceptibility to and losses from cercospora on sub-clover cultivars. Locality: Bibby Springs, Cervantes. (84M073, 84M075, 84M076). Subterranean clover root rot: - Seed treatments for root rot control. Locality: Albany (84AL39); Scott River (84 BU11). Fungicide drenches for root rot control. Locality: Perth (84PE22) using intact cores from Albany and Scott River. Cultivar screening for resistance to root rot fungi. Locality: Perth (84PE24) with field plantings at Albany and Scott River. Methyl bromide fumigation for control of sub-clover root rot. Locality: Vasse Research Station (84V15). Two sites. Cereal smuts – Fungicidal control of loose smut in barley. Locality: Northam (84N054), Narrogin (84NA23), Mt. Barker Research Station (84MBR33), Katanning (84KA25), Albany (84AL38), Bridgetown (84BR3). Fungicidal control of soil borne flag smut in wheat. Locality: Perth (84PE20). Rapeseed diseases: - Cultivar susceptibility to and yield losses from white leaf spot. Locality: Mt. Barker Research Station (84MBR34). Role of seed contamination in white leaf spot disease. Locality: Mt. Barker Research Station (84MBR35). Fungicidal control of white leaf spot. Locality: Mt. Barker Research Station (84MBR36). Yield losses from and cultivar susceptibility to white rust. Locality: Mt. Barker Research Station (84MBR37). Role of seed contamination in white rust disease. Locality: Mt. Barker Research Station (84MBR38). Ridomil MZ for white rust control. Locality: Mt. Barker Research Station (84MBR39). Fungicidal control of blackleg seedling infection. Locality: Mt. Barker Research Station (84MBR40)