If we knew what it was we we doing, it would not be called research, would it? Albert Einstein

Transcription

1 If we knew what it was we we doing, it would not e called research, would it? Alert Einstein

2 Results of Organic Disease Management Trials Annemiek Schilder Jerri Gillett Roger Sysak Jesse Sadowsky Department of Plant Pathology Michigan State University, East Lansing, MI, USA

3 Disease control in organic plantings Site selection/isolation Disease-free planting material Resistant or tolerant cultivars Sanitation/pruning Reduce humidity/wetness Healthy soil (?) Mulching

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5 Organic produccts tested Serenade: Bacillus sutilis Actinovate: Streptomyces lydicus PlantShield: Trichoderma harzianum Polyversum: Pythium oligandrum Sporan: rosemary, thyme, clove oil Fungastop: citric acid and mint oil Armicar: potassium icaronate salt GantecGreen: neem extract (azadirachtin) JMS Stylet Oil: paraffin Oxidate: hydrogen dio TetraSul: lime sulf Nordox: cuprous o Basic Copper 53: copper sulfate Organic Gem fish hydrolys SP Compost tea: aeroic, plant-derived compost extract Regalia: giant knotweed extract (Reynoutria sachalinensi

6 1 cm Mummy erry Monilinia vaccinii-corymosi

7 Mummy erry shoot strikes a Serenade Indar Ruel, Numer of shoot strikes per ush

8 Mummy erry shoot strikes Polyversum Actinovate + NF Serenade Max 1.5 l + NF d Serenade Max 3 l + NF d Conventional program d Experimental d 200 NF = NuFilm Numer of shoot strikes per ush

9 Mummy erry fruit infection Polyversum a Actinovate + NF cd Serenade Max 1.5 l + NF cd Serenade Max 3 l + NF cd Conventional program Experimental d cd 200 NF = NuFilm Numer of mummified erries per us

10 Mummy erry fruit infection Serenade alt. Regalia +NF Serenade Max + NF Regalia GantecGreen 8.5 fl oz GantecGreen 34 fl oz Conventional program Trial A, 20 NF = NuFilm P Numer of mummified erries per us

11 Mummy erry fruit infection Dormant pruning SP-1 Compost tea Basic Cu Dorm. cd a Tetrasul dormant cde Nordox dorm. efg Fungastop fg Organic Gem fg Oxidate gh Serenade Max gh Sporan Conventional Program j hi Trial B Numer of mummified erries per ush

12 Phomopsis twig light and canker Phomopsis vaccinii

13 Phomopsis twig light a JMS Stylet Oil a Armicar c Captan + Benlate d Jersey, Numer of lighted twigs per ush

14 Phomopsis fruit rot a Polyversum Actinovate + NF Serenade Max 1.5 l + NF Serenade Max 3 l + NF Conventional program Experimental 20 NF = NuFilm 17 sticker/extender % Infected Berries

15 Anthracnose fruit rot (Colletotrichum acutatum)

16 Anthracnose fruit rot Serenade a Captan + Benlate c Jersey, % Infected erries

17 Anthracnose fruit rot a Regalia + NF GantecGreen 8.45 fl oz c Serenade alt. Regalia + NF c GantecGreen 33.8 fl oz cd Conventional d 2009 NF = NuFilm P % Infected fruit

18 Anthracnose fruit rot a Nordox Dormant a Dormant pruning a Basic Cu Dorm. a Compost tea a Tetrasul Dormant Fungastop Serenade Max + NF Sporan Organic Gem Conventional Program c Trial B % Fruit rot

19 Anthracnose fruit rot ac Nordox Dormant Serenade Max + NF a Actinovate a Lime Sulfur Dorm. c Compost tea cd PlantShield cd Sporan Conventional Program d cd Trial B % Fruit rot

20 Conclusions Mummy erry: Serenade Max, Regalia, Sporan GantecGreen most effective. Phomopsis: Serenade Max, Armicar OK Anthracnose: Sporan, GantecGreen, Organic G OK; Serenade has variale results Dormant sprays (lime sulfur) can help reduce anthracnose, Phomopsis, and mummy erry More trials needed (incl. on-farm) to confirm results

21 Acknowledgements Funding provided y MSU Project GREEEN, North Central SARE