Post on 14-Dec-2015
IPM OF ROSE PESTS
Baldo Villegas
Entomologist; ARS Master Rosarian
Sacramento, CA USDA (Zone 8/9)
EMail: sactorose@yahoo.com
Home Page: http://www.sactorose.org/
INTRODUCTION
There are many different types of organisms (insects, mites, diseases) in the home garden
Very few are pests! Many beneficial organisms are present Correct identification of the pest is essential
for proper control
SOURCES OF INFORMATION
Universities – UC, State, Community Colleges Cooperative Extension Offices State Department of Agriculture County Department of Agriculture Local Nurseries – CA Nursery Association
SOURCES OF INFORMATION (cont.)
Libraries Internet Private Sector
1. Local Nurseries especially members of the CA Nursery Association
2. Pesticide & Landscape Outlets
3. Pest Control Advisors (PCA’s)
4. Private Horticulture Experts
BALDO’S FAVORITE INTERNET IPM SITES
http://www.sactorose.org - Baldo’s Bugs & Roses Website
http://www.ipm.ucdavis.edu - UC IPM Online
http://entnemdept.ifas.ufl.edu/publicat.htm - University of Florida – Entomology & Nematology Publications
http://www.apsnet.org - The American Phytopathological Society
IPM REFERENCE BOOKS Dreistadt, Steve H. 1995. Pests of Landscape Trees and Shrubs.
University of California. DANR Publication 3359. Oakland, CA 327p. ISBN#: 1-879906-18-X. 3Price $32.
Flint, Mary Louise. 1990. Pests of the Garden and Small Farm - A Grower’s Guide to Using Less Pesticide. University of California. DANR Publication 3332. Oakland, CA 276p. ISBN#: 0-931876-89-3. Price $25.
Cranshaw, Whitney. 1992. Pests of the West - Prevention and Control for Today’s Garden and Small Farm. Fulcrum Publishing, Golden, Colorado, 275p. ISBN#: 1-55591-097-1. Excellent book for IPM in North America at a very reasonable price! Price $18.95.
Davidson, R. H. and William F. Lyon. 1987. Insect Pests of Farm, Garden and Orchard, 8th Edition, John Wiley & Sons, NY, 556p.
IPM REFERENCE BOOKS (cont.) Essig, E. O. 1926. Insects of Western North America. The MacMillan
Company, NY, 1035p. This book has been out of print for many years. It is the best Book around for insect biologies for western insects.
Horst, Kenneth R. 1983. Compendium of Rose Diseases. APS Press, The American Phytophathological Society. St. Paul MN, 50p. Best book for rose diseases! Order: The American Phytophathological Society, 3340 Pilot Knob Road, St. Paul, MN 55121, USA. ISBN#: 0-89054-052-7. Price - $35.
Johnson, Warren T. and Howard H. Lyon. 1988. Insects that Feed on Trees and Shrubs,, 2nd edition, Cornell University Press, Ithaca, NY, 556p. ISBN#: 0-8014-2108-X. One of the best books for ornamental pests in North America. Price $50.
INTEGRATED PEST MANAGEMENT (IPM)
IPM is an environmentally sound integration of all control methods to control
pest populations below economic or damaging levels
IPM STRATEGIES
Prevention Pest & Symptom Identification Regular Survey for Pests (presence or
symptoms) Establish Action Thresholds &
Guidelines
CULTURAL CONTROL
Growing healthy plants Buying pest-free plant materials Choosing resistant varieties Choosing the planting site Fertilization - too much or too little Sanitation - removal of infected plant materials Watering methods
MECHANICAL & PHYSICAL Barriers - e.g., copper banding for snails/slugs Mulching - for weed control & water conservation Solarization - for control of weeds and diseases Hosing & Syringing - for control of aphids, mites, &
powdery mildew Handpicking & Crushing - for many large insects and
beetles Hoeing - for weed control Trapping - e.g., pheromone
traps for tobacco budworms
BIOLOGICAL CONTROL
Parasites (Parasitoids) - e.g., parasitic wasps & flies
Predators - e.g., lady beetles & lacewings Diseases - e.g., milky spore for Japanese
Beetle, beneficial nematodes, etc.
CHEMICAL CONTROL
Inorganic Pesticides - Derived from elemental sources: Sulfur
Organic Pesticides - Synthetic pesticides further classified by chemical families and modes of action.
Botanical Pesticides - Derived from plant materials: Pyrethrum, rotenone, rynia, bioneem, pepper oil, etc.
Microbial Pesticides - Derived from microbial organisms: Bacillus thuringienses
SIGNAL WORDS
POISON: Highly Toxic - Nicotine Sulfate DANGER: Highly Toxic - Funginex (Triforine)
WARNING: Moderately Toxic - Roundup CAUTION: Slightly Toxic - many botanicals &
microbial pesticides
These words give information on the relative toxicity and corrosiveness of the pesticide
More Aphid Natural Enemies
Lacewing Adult
Lacewing Larva
Lacewing Eggs
Cecidomyiid Midge AdultCecidomyiid Midge Larva
Cane Boring Insects
Most cane boring insects are predaceous on other insects and use rose stems for nesting
Predatory aphid wasp
Learn To Recognize The Good Bugs Of The Garden
Leatherwinged Beetle
Lady Beetle Larva
Parasitized Aphid – A “Mummy” Lady Beetle
Pupae
Ground Beetle
Scale Feeding Lady Beetle Larvae, Pupae & Adult
Mealybug Destroyer Lady Beetle Larvae
IPM IN THE HOME GARDEN
Establish damage levels for your own garden
Make observations and record them Correctly identify the pest Take the appropriate action; sometimes
the appropriate action is no action