Diseases Viruses Tomato mosaic Tomato spotted wilt Wilts - PowerPoint PPT Presentation

8/6/2020 Leaf Diseases • Early blight • Septoria leaf spot • Bacterial speck/spot Diseases Viruses • Tomato mosaic • Tomato spotted wilt Wilts • Fusarium/Verticillium 1 2 Leaf Diseases Viruses Early blight, image by W.R. Stevenson, apsnet.org Septoria leaf spot, image by Paul Bachi, Univ. Bacterial speck, image by Gerald Holmes, Strawberry Tomato mosaic, image by Gerald Holmes, Strawberry Tomato spotted wilt, images by William M. Brown Jr., Bugwood.org Kentucky, Bugwood.org Center, Cal Poly San Luis Obispo, Bugwood.org Center, Cal Poly San Luis Obispo, Bugwood.org 3 4 1

8/6/2020 Wilts Leaf Diseases Leaf Diseases • Keep foliage dry – irrigation, dew, rain • Fungicide spray program • In fall: • Discard heavily infected plants - don’t Basic Disease compost • 3-4 year rotation Control Techniques Viruses & Wilts Viruses & Wilts • Remove infected plants ASAP • Next year • Resistant cultivars – Verticillium (V), Fusarium (F 1 , F 2 ) • Wilts – 3 to 4 year rotation at minimum Fusarium wilt, image by Edward Sikora, Auburn University, Fusarium wilt, image by Clemson University - USDA Verticillium wilt, image by Gerald Holmes, Strawberry Bugwood.org Cooperative Extension Slide Series , Bugwood.org Center, Cal Poly San Luis Obispo, Bugwood.org 5 6 Leaf Damage Leaf Damage • Two-spotted spider mites Insects Fruit Damage • Hornworms • Fruitworms, aka corn earworm • Stink bugs Two-spotted spider mites, image by Ric Bessin, Spider mites, image by Clemson University - USDA Two-spotted spider mites, image by Ric Bessin, University of University of Kentucky Entomology Cooperative Extension Slide Series , Bugwood.org Kentucky Entomology 7 8 2

8/6/2020 Fruit Damage Insecticides: • Carbaryl (Sevin) • Permethrin (Eight) • Spinosad (Monterey Garden Insect Spray, Captain Jack’s Garden Pest Dead Bug Brew) • Bacillus thuringiensis (Monterey BT, Bonide BT) Control Products Fungicides: • Liquid copper (Bonide Liquid Copper) • Chlorothalonil (Bonide Fung-onil, Fertilome Broad Spectrum Landscape & Garden Fungicide) • Mancozeb (Bonide Mancozeb) • Neem oil (Bonide Neem Oil, Garden Safe Fungicide-3, Garden Safe Neem Oil Extract) Tomato/tobacco hornworm, image by Eric R. Day, Virginia Fruitworm, image by R.L. Croissant, Bugwood.org Stink Bug damage, image by Ontario Crop IPM Polytechnic Institute and State University, Bugwood.org Green stink bug, Frank Peairs, Colorado State Univ., Bugwood.org 9 10 Abiotic Blossom end rot, image by Sarah Browning, Nebraska Extension Problems Sunscald, image by Howard F. Schwartz, Colorado State University, Bugwood.org Water stress fruit cracks, image by M.E. Bartolo, Bugwood.org 11 12 3

8/6/2020 13 14 15 4