UF-IFAS Nitrogen Fertilization and Management ... - Florida Ag Expo

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Facts: Tomato Yellow Leaf CurlVirus (TYLCV)‣ Is the worst tomato disease,because can have tremendousimpact in yields.‣ The disease is induced by anumber of begomoviruses,transmitted by the whiteflyBemisia tabaci.‣ Leaf symptoms include chloroticmargins, small leaves which arecupped, thick <strong>and</strong> rubbery. Themajority (up to 90%) of flowersabscise after infection.
In order to lessen the incidence of the TYLCV(There are no wild species as reservoir forTYLCV during the summer):1. Tomato Free Periods2. Eradication of volunteer3. Peppers whitefly controlNow, if the virus become morestrong another tool is “resistantvarieties”.
Page 1: Screening Varieties for Resistancet
Page 5 and 6: VarietySource2007BHN 745FLA 8576FLA
Page 7 and 8: VarietyBHN 765FLA 8577FLA 8578HA 30
Page 9 and 10: Results
Page 12 and 13: Virus symptoms0 0.5 1 1.5 2 2.5 3 3
Page 14 and 15: VarietySpring 2008FirstHarvestMarke
Page 16 and 17: Yield (Boxes/acre)2,5002,0001,5001,
Page 18 and 19: RomasSpring 2008VarietySpring 2008F
Page 20 and 21: There are TYLCV varieties more susc
Page 22 and 23: Variety Blind EvaluationSpring 2009
Page 24 and 25: http://swfrec.ifas.ufl.edu/veghort/

UF-IFAS Nitrogen Fertilization and Management ... - Florida Ag Expo

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