An America Rose Society Presentation 2005

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Kathlyn Cox
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1 An America Rose Society Presentation 2005

2 IPM OF ROSE PESTS Baldo Villegas Entomologist; ARS Master Rosarian Sacramento, CA USDA (Zone 8/9) Home Page:

3 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

4 INTEGRATED PEST MANAGEMENT (IPM) IPM is an environmentally sound integration of all control methods to control pest populations below economic or damaging levels

5 IPM STRATEGIES Prevention Pest & Symptom Identification Regular Survey for Pests (presence or symptoms) Establish Action Thresholds & Guidelines

6 IPM METHODS Cultural Control Mechanical & Physical Control Biological Control Chemical Control

7 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

8 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

9 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.

10 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

11 SIGNAL WORDS These words give information on the relative toxicity and corrosiveness of the pesticide POISON: Highly Toxic - Nicotine Sulfate DANGER: Highly Toxic - Funginex (Triforine) WARNING: Moderately Toxic - Roundup CAUTION: Slightly Toxic - many botanicals & microbial pesticides

12 Garden Insecticides - Systemics

13 Insecticides Contact - Residual

14 Insecticides Contact No Residue

15 Insecticides - Microbal

16 Aphids

17 Aphid Natural Enemies Aphis Wasp Lady Beetle Dead Aphid From Aphid Wasp

18 More Aphid Natural Enemies Lacewing Adult Cecidomyiid Midge Larva Cecidomyiid Midge Adult Lacewing Larva Lacewing Eggs

19 Sooty Mold usually grows on top of honeydew produced by sucking insects

20 Ants commonly found on honeydew produced by sucking insects

21 Mealybugs

22 Whiteflies

23 Rose Scale common on berry bushes

24 San Jose Scale common on fruit trees

25 Scale Insect Natural Enemies Red Scale Wasp (Aphytis melinus) Red Scale Wasp Larva On Scale

26 Spittlebugs unsightly spit or foam

27 Spider Mites suck individual cells dry

28 Two-Spotted Spider Mites

29 Flower Thrips very tiny insects! Commonly found causing damage to rose petals

30 Western Flower Thrips

31 Rose Midge tiny mosquito like flies, feeds on the apical buds of roses

32 Katydids long horned grasshoppers

33 Snails & Slugs leave a silvery slime trail behind

34 Control Measures For Snails Baldo Squish Copper Band

35 Diabrotica or Cucumber Beetles

36 Rose Curculios feeds on early flower buds

37 Rose Curculio damage to buds

38 Other Beetles: Hoplia, Japanese beetles, Stem girdlers, etc.

39 Fruit Tree Leafroller Caterpillars

40 Tobacco Budworms - commonly migrate from companion plantings

41 Marmara Cambium Miners

42 Rose Stem Sawfly Damage on Rose

43 Rose Stem Boring Sawfly Aka Raspberry Stem Boring Sawfly

44 Cane Boring Insects Predatory aphid wasp Most cane boring insects are predaceous on other insects and use rose stems for nesting

45 Leafcutter Bees do not eat leaves; they use them for lining nests

46 Learn To Recognize The Good Bugs Of The Garden Lady Beetle Larva Leatherwinged Beetle Ground Beetle Scale Feeding Lady Beetle Larvae, Pupae & Adult Parasitized Aphid A Mummy Mealybug Destroyer Lady Beetle Larvae Lady Beetle Pupae

47 Watch out for the Lady Beetles!

48 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

49 The End

Integrated Pest Management. University of California Statewide IPM Program

Integrated Pest Management. University of California Statewide IPM Program Integrated Pest Management University of California Statewide IPM Program In this presentation. Define IPM Explain what s in an IPM program How IPM can be applied to your garden and orchard Examples of