First Identify the Problem. What's Bugging You? Integrated Pest Management (IPM) 11/14/2018. Jim Jacobi Extension Plant Pathologist
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1 First Identify the Problem What's Bugging You? Jim Jacobi Extension Plant Pathologist Slime Mold (Fuligo septica) Japanese Maple (May 25, 2018) Integrated Pest Management (IPM) Combines multiple strategies for controlling insect pests and disease IPM always begins with accurate pest identification. Good bug or bad bug? Integrated Pest Management (IPM) Use pesticides only if nonchemical controls aren t effective. If pesticides are needed, use least toxic products first (soaps, oils, microbials such as Bt and spinosad). Less toxic to beneficial organisms. Knock Out Rose Knock Out Rose 1
2 Rose Sawfly (aka Rose Slug) Knock Out Rose Knock Out Rose April 18, 2018 Rose Rosette Disease Eriophid Mites are the Vector for the Rose Rosette Virus Spread of Rose Rosette Molly Giesbrecht, Texas A&M AgriLife Extension Service, Bugwood.org Infected roses should be removed immediately or risk rapid spread and loss of all roses in a planting. 2
3 Bigleaf Hydrangea Cercospora Leaf Spot Bigleaf Hydrangea Bigleaf Hydrangea September 14, 2018 Provide adequate plant spacing for good air circulation Avoid watering late in the day Remove fallen leaves Apply fungicide at first sign of disease Spectricide Immunox Garden Tech Daconil, Ortho Garden Disease Control Bigleaf Hydrangea Leaf Spot Leyland Cypress October 31,
4 Leyland Cypress October 31, 2017 Leyland Cypress October 31, 2017 Passalora Needle Blight Leyland Cypress September 21, 2017 Passalora Needle Blight Control Options Remove and dispose of infected branches or heavily disease trees Fungicides: Spectricide Immunox Garden Tech Daconil, Ortho Garden Disease Control Begin Fungicide applications by July 1 continue through October. Every 7 14 days 4
5 Weeping Conk (Inonotus dryadeus) Water Oak November 14, 2017 Willow Oak September 11, 2018 Blackjack Oak August 10, 2018 Blackjack Oak August 10, 2018 Look for droppings under tree Blackjack Oak August 10,
6 Small insect 1/2 long x 1/16 wide Wing covers, abdomen and head are iridescent green Coppery purple/red body under the wings Emerald Ash Borer Photo from EAB Larvae D Shaped Exit Holes Tunnels beneath bark Distinct, S shaped paths Larval galleries filled with frass D shaped exit holes David R. McKay, USDA APHIS PPQ, Bugwood.org James W. Smith, USDA APHIS PPQ, Bugwood.org Joseph OBrien, USDA Forest Service, Bugwood.org Southern Magnolia 6
7 Southern Magnolia Dogwood Black Twig Borer Bermudagrass June 26, 2018 Algae (cyanobacteria) Nostoc sp. Bermudagrass Bermudagrass Feb. June 19, 26,
8 Bird Nest Fungi Landscape Mulch August 30, 2018 Landscape Mulch April 3, 2018 Cedar-Quince Rust Asian Pear May 23, 2018 Hawthorn Crape Myrtle Crape Myrtle 8
9 Asian or Granulate Ambrosia Beetle Japanese Maple April 6, 2018 Basil Downy Mildew Use less susceptible varieties, Plant early, Removed affected plants, Difficult to control with fungicides Basil Sooty Mold Crape Myrtle Aphids Crape Myrtle Crape Myrtle September 14,
10 Oakleaf Hydrangea September 10, 2018 Crape Myrtle Bark Scale New Pest Sooty Mold Asian Wooly Hackberry Aphids Crape Myrtle Bark Scale Tea Scale Henry anise tree (Illicium henryi) 10
11 Tea Scale Most common on camellia, holly, and anise Horticultural oil targeting crawlers during growing season First crawler emergence is April May (2 3 generations/yr.) Bonide Systemic Insect Control (acephate) Acetamiprid (Ortho Flower, Fruit, and Vegetable Insect Killer) Translaminar Systemic Ortho Tree & Shrub Insect Control (Dinotefuran) Questions? Common camellia 11
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