Fruit & Vegetables Pathology- K. Korus
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Fruit & Vegetables Pathology- K. Korus



Fruit & Vegetables Pathology- K. Korus 3-19-14

Fruit & Vegetables Pathology- K. Korus 3-19-14



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Fruit & Vegetables Pathology- K. Korus Document Transcript

  • 1. 3/18/2014 1 Know how. Know now. Emmanuel Byamukama Keven Korus Stephen Wegulo “Bad seed is a robbery of the worst kind: for your pocketbook not only suffers by it, but your preparations are lost and a season passes away unimproved” George Washington Abiotic Diseases – Caused by Non-Living Agents S. Wegulo, UNL S. Wegulo, UNL Missouri Botanical Garden Missouri Botanical Garden
  • 2. 3/18/2014 2 Splitting in watermelon Colorado State University William Brown Jr. E. Maynard, Purdue University Jerry Brust, UMD  Good fertilizer program  Proper staking to reduce exposure to excessive sunlight  Control diseases that increase loss of leaves  Soil cover- mulching  Proper water management  Leaching – put pieces of wood at the bottom of the pot – do not let plant sit in the water
  • 3. 3/18/2014 3 Know how. Know now. Cornell University LSU AgCenter ISU Disease clinic Cornell University Kent Loeffler  Dispose of infected plants/fruits  Destroy volunteer tomatoes and potatoes  Scout regularly for early detection  Avoid overhead watering  Fungicide sprays at label rates and intervals  Some cultivars are moderately resistant S. Wegulo, UNL
  • 4. 3/18/2014 4 Tomato Bushy Stunt Tomato Mosaic Tomato Spotted Wilt Eggplant Mosaic Several different viruses can result in this appearance: Tomato Bushy Stunt Virus Tomato Spotted Wilt Virus  Control weeds especially those in the same family  Separation of vegetable garden from flower bed  Remove infected plants  Select vigorous and healthy looking plants  Control insects S. Wegulo, UNL  Avoid excessive watering  Harvest early  Expose bulbs  Wash and air dry bulbs/tubers
  • 5. 3/18/2014 5 UGA OSU  Planting pathogen-free seed/transplant  Sanitation – remove infected fruit  Pick fruit frequently  Water early in the day Penn State M.P. Hoffman F. Lam PU  Insect management  Remove and discard infected plants in the garden  Resistant varieties  Cover soil with reflective mulching Mark Gleason, ISU
  • 6. 3/18/2014 6 UC IPM Project  Avoid sprinkler irrigation  Remove affected twigs  Fungicide applications ◦ Spray at 50% leaf fall in late autumn ◦ Spray again during the dormant season ◦ Spray again at shuck fall in the spring J.W. Travis  Sanitation ◦ Remove all rotted fruit and mummies  Prune out twig cankers  Remove wild plum thickets that are adjacent to orchards  Several fungicide applications ◦ Flower infections – apply at pink, bloom and petal fall ◦ Fruit – start about 1 month before harvest Oregon State University
  • 7. 3/18/2014 7 University of Florida  Plant disease-free plants  Minimize overhead irrigation  Mulching with straw instead of plastic  Remove infected plant parts  Fungicide use APS Press University of Florida  Select a site with good air circulation  Canopy pruning to increase air movement (raspberry)  Avoid crowding plants  Straw mulch to form barrier between fruit and soil (strawberry)  Remove infected plant material  Fungicide applications at 7 - 10 day intervals during bloom University of Florida
  • 8. 3/18/2014 8 Department of Plant Pathology University of Nebraska-Lincoln Institute of Agriculture and Natural Resources