1 / 26

Rose Garden Pesticides

Rose Garden Pesticides. The Chemicals Available to Keep Your Roses Pest-Free. Today’s Topics. Pesticide Hierarchy Systemic, Translaminar, and Contact Chemicals Identifying the Common Pests Insects Funguses The Available Insecticides and Fungicides Online Sources of Pesticide Labels

mollie-rhodes
Download Presentation

Rose Garden Pesticides

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Rose Garden Pesticides The Chemicals Available to Keep Your Roses Pest-Free

  2. Today’s Topics • Pesticide Hierarchy • Systemic, Translaminar, and Contact Chemicals • Identifying the Common Pests • Insects • Funguses • The Available Insecticides and Fungicides • Online Sources of Pesticide Labels • Shopping the Internet for the Best Price • A few words about Resistance Management

  3. Today’s Topics (Cont.) • Specific Chemicals for Specific Pests • Insecticides/Miticides • Fungicides • Ready-to-Use (RTU) and Over-the-Counter (OTC) Products for the Smaller Garden • Bayer Advanced Garden Products • Others

  4. Pesticide Hierarchy

  5. Systemic Chemicals • Apply to the foliage as a spray or to the roots as a drench • Moves (typically, up) through the plant’s vascular system • Phloem cells – like “arteries” through which sugars and other plant products move • Xylem – tubular structure for the transport of water and dissolved minerals --think tree growth rings • Chemicals stay within the plant – don’t wash off • Downside – systemics don’t enter the blooms

  6. Translaminar Chemicals • Trans = across or through, like transatlantic • Laminar = layered • Translaminar = through layers • Sometimes referred to as locally systemic • Applied to foliage as a spray, these chemicals are absorbed by the plant • They move through foliage from one surface to the other • Great for spider mites which feed on the underside of leaves and are nearly unaffected by systemics

  7. Contact Sprays • Applied to foliage, buds and blooms as a spray • Remain on the surface of foliage and blooms • Not absorbed by the plant • Pretty much the only way to protect blooms • Downside – contact sprays wash off in the rain

  8. Identifying the Common Pests • Insects • Japanese Beetles – May through August – devour blooms and leaves • Aphids – entire growing season – attack buds and tender foliage – often accompanied by ants (“farming” the aphids) • Thrips – entire growing season – create blemishes on blooms – especially light colors • Budworms – later in the growing season – bore holes in buds • Spider Mites – when it’s hot and dry – suck the chlorophyll out of leaves – defoliate bushes

  9. Identifying the Common Pests • Funguses • Black Spot – all season especially when damp – forms a black spot on leaves which then yellow and fall off • Powdery Mildew – all season – superficial white or gray powder on surfaces of leaves – uncontrolled will prevent blooming • Downy Mildew – cool with high humidity – purplish red to dark brown irregular spots on leaves – uncontrolled may result in defoliation – long purplish areas on canes - may be systemic in roses • Botrytis – all season especially when damp – creates blemishes on blooms, bloom rot and premature shattering • Rust – all season – tiny orange and red spots on leaves – looks like rust – uncontrolled can defoliate bush

  10. The Available Insecticides and Fungicides • Where to learn about them - other rosarians, ads in rose magazines and newsletters, rose forums on the Internet, and rose care websites like: • www.rosemania.com • www.rosecare.com • www.saveonchemicals.com • www.growersupply.com • www.southernag.com • www.pestproducts.com • And links from www.chattanoogarose.org

  11. Get the Labels • And the Material Safety Data Sheets (MSDS) • Sources of labels: • On the chemicals’ containers • Manufacturers’ websites – for example www.bayeradvanced.com • www.cdms.net – offers labels and MSDS for all registered pesticides – search by product name • www.greenbook.net – another site like cdms.net – however, requires simple registration

  12. Read the Labels! • And the MSDSs • Typical label format: • Product name, active ingredients and toxicity – CAUTION, WARNING, or DANGER • Safety information – personal protection equipment (PPE), etc. • Use restrictions and application instructions • Applicable crops/plants – pest/disease that is controlled – application rates • Storage and disposal requirements

  13. Shopping the Internet

  14. Resistance Management • Resistance management in the garden is a problem akin to certain antibiotics losing their effectiveness in humans due to repeated or improper use • Repeated use of the same pesticide allows the target pest to mutate and adapt and become resistant to the pesticide • Each insecticide and fungicide has a specific mode of action (MOA) in the way it disables and kills its target pest • If these MOAs are alternated from one spraying to the next the target pest is very less likely to adapt

  15. Resistance Management (Cont.) • Or, if chemicals with different MOAs are mixed in a single spraying the target pest is unable to adapt • The Insecticide Resistance Action Committee (IRAC – www.irac-online.org) in its latest publication identifies 28 insecticide MOAs • The Fungicide Resistance Action Committee (FRAC – www.frac.info) has identified over 40 fungicide MOAs • Dr. Ray Cloyd and I decided that the large number of MOAs should and could be consolidated to be of more use to rosarians – we came up with 6 insecticide MOAs and 6 fungicide MOAs

  16. Resistance Management (Cont.) • Your handout contains the two tables that Dr. Cloyd and I derived from the IRAC and FRAC publications • MOA 6 in both tables is what Dr. Cloyd calls the “napalm” MOA – the chemicals in this group kill on contact and leave little or no room for adaptation • I’ve found two useful insecticide partnerings to be Merit and Tempo and Avid and TetraSan • An effective fungicide partnering is Banner Maxx (alternated with Cleary’s 3336F) and Compass

  17. Perspective Setting • Pesticide producers view rose growers as a tiny market • Insecticides are primarily marketed to farmers and maintainers of large public areas • Fungicides target turf grass markets like golf courses • We’re just lucky that these pesticides work to eliminate rose garden pests

  18. Specific Chemicals for Specific Pests • Insecticides • Orthene – MOA 1 – a translaminar chemical – spray for the control of aphids, Japanese Beetles, and thrips • Sevin – MOA 1 – a contact spray – very effective against Japanese Beetles – has resistance management problems with thrips if used alone – combine with Tempo, Talstar or Conserve • Talstar – MOA 2 – a contact spray – also registered as a miticide – good control of aphids and Japanese Beetles – look also for Bifen I/T – exactly the same as Talstar but less expensive ($59.90 vs $99.99 per quart)

  19. More Pest-Killers • Insecticides (Cont.) • Tempo – MOA 2 - a highly-effective contact spray – kills just about any insect • Avid – MOA 3 – a translaminar spray – kills adult spider mites • Floramite – MOA 3 – a contact spray – kills all spider mite life stages • Akari 5SC – MOA 3 – a contact spray – kills all spider mite life stages – 60% the cost of Floramite • Merit - MOA 4 – a very effective systemic chemical – kills any insects that are eating the foliage – use as a drench or spray

  20. …And More • Insecticides (Cont.) • Conserve – MOA 4 – a translaminar spray – probably the most effective attack on thrips • Hexygon – MOA 5 – a contact spray for the control of spider mite larva and eggs – combine with Avid • TetraSan – MOA 5 – a translaminar spray for the control of spider mite larva and eggs – combine with Avid for a translaminar spray addressing all mite life stages • Forbid 4F – MOA 6 – a translaminar spray for the control of all spider mite life stages – minimum resistance management problems – very expensive

  21. Now Disease (Fungus) Control • Fungicides • Banner Maxx – MOA 1 – a systemic chemical that attacks blackspot, powdery mildew and rust • Eagle 20 EW – MOA 1 – very similar to Banner Maxx but less toxic (CAUTION instead of WARNING) – same active ingredient as Systhane • Decree 50 WDG – MOA 1 – specifically registered as a botryticide • Cleary’s 3336F – MOA 2 – a systemic chemical that can be alternated with Banner Maxx • Chipco 26019 Flo – MOA 3 – specifically registered to control botrytis blight – alternate with Decree

  22. More Disease Control • Fungicides (Cont.) • Subdue Maxx – MOA 4 – targets root and stem rot – primarily used as a drench in greenhouses • Compass – MOA 5 – a translaminar chemical that controls just about every rose disease, including botrytis, downy mildew, and powdery mildew • Alliette – MOA 6 – an aluminum-based contact chemical that specifically targets downy mildew • Manzate – MOA 6 – a zinc- and manganese-based contact spray for the very effective eradication of blackspot – now sold as Pentathlon • Zyban – MOAs 2 and 6 – a combination of the active ingredients in Cleary’s 3336F and Manzate – comes as a fine powder

  23. RTU and OTC Products • Bayer Advanced Garden Products • www.bayeradvanced.com • Rose & Flower Insect Killer • A combination of Merit and Tempo • Available in spray bottle, hose-end sprayer and concentrate • 2 in 1 Systemic Rose & Flower Care • Granules sprinkled around bush and watered-in • 12-18-6 fertilizer • Orthene-like systemic insecticide - disulfoton

  24. RTU and OTC Products (Cont.) • More Bayer Advanced Garden Products • All-in-One Rose & Flower Care • Merit insecticide plus Banner Maxx fungicide • 9-14-9 fertilizer • Mixed 4 tbsp/quart and used as a drench • Bayer Advanced Disease Control • Concentrate diluted 1.5 tbsp/gallon to spray • Active ingredient same as Banner Maxx

  25. Some Other RTU/OTC Products • Safer Brand 3 in 1 Garden Spray – uses fatty acids, sulfur and neem oil (MOA 6) to create an environmentally safe insecticide, fungicide and miticide • Green Light Bioganic Organic Rose & Flower Ready-to-Use – uses plant oils (MOA 6) to create an environmentally safe insecticide, fungicide and miticide • Ortho Orthenex Insect & Disease Control – active ingredients are acephate (Orthene) and triforine (same chemical group as Banner Maxx) • GardenTech Sevin – OTC version of this very effective insecticide (MOA 1)

  26. And, Finally…Adjuvants • Adjuvant – serving to help or assist – something to make a spray more effective • Stirrup M – a pheromone (sexual attractant) that draws spider mites to any spray in which it’s mixed • Indicate 5 – adjusts pH of spray water and serves as a spreader-sticker – most sprays more effective in a slightly acidic liquid • Hi-Yield Spreader-Sticker (or any other OTC brand) – makes spray adhere to foliage instead of dribbling off

More Related