Dwight K. Jesseman St. Johns County Agricultural AgentSlide 2
Nematology Basic Principles for Master GardenersSlide 3
Types of Nematodes Plant Parasitic Predatory Entomophagous Free Living MarineSlide 4
Plant ParasiticSlide 5
Free LivingSlide 8
Morphology and Anatomy Animals Round Worms Size 0.25mm to 3.0mm Layered Cuticle Vermiform, Globose, Kidney ShapedSlide 10
Layered CuticleSlide 11
Kidney ShapedSlide 14
Life Cycle and Reproduction Egg - 50 to 500 Four Juvenile Stages Adult Male and Female in Most Species Life Cycle Dependant on Soil Temperatures Move SlowlySlide 15
Egg and JuvenileSlide 16
Feeding Oral Stylet or Spear Inject Enzymes Digest Cell ContentsSlide 17
Oral StyletSlide 18
Host-Parasite Relationship Migratory Ectoparasitic Ring, Spiral Migratory Endoparasitic Lesion, Burrowing Sedentary Endoparasitic Root-Knot, Cyst, Reniform, CitrusSlide 19
Migratory EctoparasiticSlide 20
Migratory EndoparasiticSlide 21
Sedentary EndoparasiticSlide 22
Diagnoses Very Difficult at Times Poor Growth Combination of Problems Assay of Soil and/or Plant Tissue SymptomsSlide 23
Above-Ground Rarely Sufficient Chlorosis Dieback Melting out Reduced Growth Water StressedSlide 24
Reduced GrowthSlide 25
Below-Ground Root Galls Root Swellings Abbreviated Root System Root Rot Cyst NematodesSlide 26
Root GallsSlide 27
Abbreviated Root SystemSlide 28
Cyst NematodesSlide 29
Field History Gradual Decline Area - Small to Large Rotation of CropsSlide 30
Laboratory Assay Soil and Plant Tissue Relative Population Densities Economic ThresholdsSlide 31
Nematode Management Prevention Crop Rotation Crop Root Destruction Flooding and Fallowing Resistance Biological Control NematicidesSlide 32
Home Garden Container Growing Site Selection Crop Rotation Soil Tillage and Root Destruction Amendments Organic Matter Green ManuresSlide 33
Home Garden Planting Time Nematode - Free Transplants Resistant Varieties Soil Solarization Chemical ControlSlide 34
Soil Solarization Cover for no less than 4 weeks Well Tilled High Moisture Slightly Raised Beds Crown the BedSlide 35
Soil Solarization Clear Polyethylene Thin Plastic 1 to 2 mil Leave in Place Until Planting Avoid Contaminated Plants or SoilSlide 36
Soil Temperatures Tarped Soils 111 to 122 115 - Water Molds 120 - Nematodes 140 - Most Fungi 150 - Most Soil Insects 160 - Most Viruses and Bacteria 170 - Most Weed SeedsSlide 37
Ornamentals Site Preparation Treat Soil Fumigation Soil Solarazition Replace Infested Soil Root BarriersSlide 38
Ornamentals Nematode-Free Stock Well Adapted Plants Resistant Plants Maintenance Mulches Other Pests Chemical ControlSlide 39
Turf Biological Controls Resistant Plants Chemical Control Fumigation Before PlantingSlide 40
Resistance Bahiagrasses - Tolerant of Most Centipedegrasses - Ring, Sting, Sheath St. Augustinegrasses - Sting, Lance Bermudagrasses - Sting, Lance, Stubby Zoysiagrasses - Most nematodesSlide 41
Basimid Granular Use Compost Piles Potting Soils Seed and Propagation Beds Soil Media Establishing Turf and Ornamental Sites Not for Use in Vegetable Gardens READ THE LABEL, IT IS THE LAWSlide 42
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