Plant health care


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  • ISA certified, SLCC/Meramec grad, licensed pesticide applicator
  • Refer to handout provided by LBG
  • Know this definition for the exam. For real life what is/are the key points within this definition… 1)- program 2)- landscape Let’s talk about this…
  • IPM stands for Integrated Pest Management. Usually enters the scene “after the fact”, translates into I’ve planted all these wonderful plants in the wrong spot and now I MUST make them live OR Ewe, what is this stuff all over my tree? Can I just spray something? In other words; a short-term view.
  • When involved with a “landscape company”, this is a frequent phone-ringing event. It can be a tool to assist you in servicing customers…a constant way of doing business, a part of or another way of saying PHC. Look at page 129 of your text… Some “thing” caused your client to call you with a “problem”. ..
  • Could be this guy…
  • Could be this… Either way, you will have to talk with your client, gather enough information from them and their fears, the plant and its symptoms and the site and perhaps surrounding sites in order to make an appropriate recommendation for treatment of the situation. This could be anything from do nothing to removal of the plant.
  • We can see that trees are CONSTANTLY allocating resources…not just when they are in a stress situation. Allelochemicals- a product of certain plants/trees that have toxic or deterrent effects on certain insects. Black walnut produces juglandone.
  • To keep me focused and on track!
  • Dipel Pro’s active ingredient is a form of Bt. You can do this. Do not be intimidated by the fact that these products aren’t trees. If you aren’t already working in the industry, and maybe if you are… you will find that you learn a particular product for particular situations. Colleagues, growers, sales reps for mfgs all become valuable resources when chemicals enter the picture. I’ll repeat, you need to study this section, but don’t dwell on it or stress yourself out over it. Choose a product that you are familiar with, know what type (I.e. soap, oil, botanical,etc) it is and remember how it works. Take a breath, calm your nerves, think and answer the question.
  • Oaks can be especially harmful to cattle. If symptoms are exhibited give activated charcoal.
  • This tree is drought stressed. It has prematurely shed its leaves. What are the consequences of t his action? No photosynthesis happening, cannot store energy for winter, will not produce as much fruit or growth and will be weakened and predisposed to an attack by insects and/or disease.
  • As industry professionals and isa certified arborists, what would we recommend to these homeowners? Refer to all we have covered this evening.
  • Answer c
  • Answer b
  • Answer a
  • Answer c
  • Answer c
  • Plant health care

    1. 1. Plant Health Care Lorri Berkley Grueber
    2. 2. Objectives & Definitions <ul><li>Philosophy of PHC & how differs from IPM </li></ul><ul><li>Concept of ARP & how used in diagnosis & treatment </li></ul><ul><li>Compare & contrast different ways plants allocate resources </li></ul><ul><li>Become familiar w/ multiple pest control and treatment options- advantages & limitations </li></ul><ul><li>Key terms as provided by text </li></ul><ul><li>Chapter 11 Workbook questions </li></ul><ul><li>Challenge questions </li></ul><ul><li>Sample test questions </li></ul><ul><li>Bonus stuff! </li></ul>
    3. 3. Huntleigh Farms <ul><li>9 acres </li></ul><ul><li>Residential </li></ul><ul><li>“ Abandoned” property, recently purchased by very cool people. </li></ul><ul><li>Renovating property into a B&B. </li></ul><ul><li>Let’s get to work! </li></ul>
    4. 4. What is Plant Health Care? <ul><li>By the book, PHC is ‘a holistic and comprehensive program to manage the health, structure, and appearance of plants in the landscape’. </li></ul>
    5. 5. What is IPM? <ul><li>Deals solely with thresholds of insects and disease. </li></ul><ul><li>Borrowed from agricultural practice of crop loss vs. treatment expense. </li></ul><ul><li>Regarding ornamental plants, it tends to be purely aesthetic. </li></ul>
    6. 6. Appropriate Response Process (ARP) <ul><li>ARP is, the process of gathering information, assessing the severity & implications of a problem, determining client expectations & deciding upon a course of action. </li></ul>
    7. 9. Resource allocation <ul><li>The distribution and use of photosynthate for various plant functions and processes… </li></ul><ul><li>Page 127 of text </li></ul>
    8. 10. Where is energy going now? <ul><li>Fruit trees in Beijing </li></ul>
    9. 11. And what about now… <ul><li>Golf course tree with lawn mower disease. </li></ul>
    10. 12. One more time… <ul><li>Black walnut on Huntleigh Farms </li></ul><ul><li>Allelochemicals </li></ul>
    11. 13. Review of concepts- <ul><li>PHC vs. IPM </li></ul><ul><li>ARP </li></ul><ul><li>Resource allocation </li></ul>
    12. 14. Changing gears a little bit- Pest Control & Treatment <ul><li>It’s not always a critter, </li></ul><ul><li>It doesn’t always need something… </li></ul><ul><li>… but when it does </li></ul>
    13. 15. …it pays to know the difference! <ul><li>Botanicals </li></ul><ul><li>Contact insecticides </li></ul><ul><li>Fungicides </li></ul><ul><li>Horticultural oils </li></ul><ul><li>Insect growth regulators </li></ul><ul><li>Insecticidal soaps </li></ul><ul><li>Insecticides </li></ul><ul><li>Microbial extracts </li></ul><ul><li>Etc, etc, etc… </li></ul>
    14. 16. The big umbrella of information <ul><li>Botanicals, horticultural oils, IGR’s, insecticidal soaps, and microbial extracts are ALL forms of alternative pesticides. </li></ul><ul><li>ALL are somewhat less pest specific. </li></ul><ul><li>Less damaging to natural enemies/ predators. </li></ul>
    15. 17. Don’t let this part get you down- <ul><li>Botanicals are plant extracts (pyrethrin), </li></ul><ul><li>Horticultural oils suffocate insects or disrupt membranes (Volk oil), </li></ul><ul><li>For the test- pick ones you know to help you remember  </li></ul>
    16. 18. This section relies on BASIC knowledge <ul><li>Insect Growth Regulators (IGR’s) are synthetic compounds </li></ul><ul><li>Act like insect hormones </li></ul><ul><li>Disrupt life cycle or target pest </li></ul><ul><li>GypChek </li></ul>
    17. 19. More of the chemicals… <ul><li>Insecticidal soap (Safer’s & M Pede) are highly refined soaps that (again) disrupt life cycles. </li></ul>
    18. 20. It’s really NOT that bad <ul><li>Microbial Extracts- </li></ul><ul><li>Contain insect pathogens, </li></ul><ul><li>Derived from extracts of bacterial pathogens of insects </li></ul><ul><li>Bacillus thuringiensis (Bt) </li></ul>
    19. 21. Choosing ‘Cides <ul><li>Main Entry: -cide Function: noun combining form Etymology: Middle French, from Latin -cida, from caedere to cut, kill 1 : killer <insecti cide > 2 [Middle French, from Latin -cidium, from caedere ] : killing <sui cide > </li></ul><ul><li>Ok, so it/they kill. </li></ul>
    20. 22. We’re nearly finished <ul><li>Fungicides -kill fungi OR used as a preventive. </li></ul><ul><li>Insecticides - kill insects either from direct contact or systemically </li></ul><ul><li>Pesticides - kill pests; weeds, insects or fungi. Not intended for use on annoying classmates, spouses or significant others. </li></ul>
    21. 23. How they work… <ul><li>Contact insecticides …on 3 everyone scream RAID!!!!! </li></ul><ul><li>Systemic - a substance that moves throughout a body and is absorbed by the entire organism, in this case roots,bark and leaves. </li></ul>
    22. 24. Break time!
    23. 25. Revenuers in Kentucky <ul><li>Phenol is an alcohol </li></ul><ul><li>Natural pesticide </li></ul>
    24. 26. “ I’m gonna tan your hide, kiddo!” <ul><li>Oak bark, acorns and galls are all used to tan leather </li></ul><ul><li>Tannins are used in wine- more red than white </li></ul><ul><li>Another natural pesticide </li></ul>
    25. 27. Cellulose <ul><li>Chain-like molecules found in the cell walls of trees </li></ul><ul><li>Provides strength to stand up and enables water and nutrient movement </li></ul><ul><li>Defense mechanism as many insects cannot digest it </li></ul>
    26. 28. Lignin <ul><li>Further strengthens cell walls </li></ul><ul><li>Also indigestible by many insects </li></ul>
    27. 30. Stress? <ul><li>What the @#*!? </li></ul>
    28. 31. Or stress… <ul><li>Any factor that limits a plants’ ability to acquire necessary resources OR leads to excessive amounts of necessary resources can be considered stress. </li></ul>
    29. 32. Mortality spiral <ul><li>The cumulative effect of stress can put a tree into a state of decline. </li></ul><ul><li>Stressed trees are more likely to succumb to drought, defoliation, borers, bark beetles or vascular diseases. </li></ul><ul><li>Best defense is a good offense! </li></ul>
    30. 33. Vigor or vitality <ul><li>The plant’s inherent genetic capacity to resist stress </li></ul><ul><li>Adaptability to various soil types, moisture conditions, temperatures </li></ul><ul><li>The plant’s ability to deal effectively with stress </li></ul><ul><li>What plant maintenance professionals typically promote. </li></ul>
    31. 34. Pest resurgence <ul><li>the rapid reappearance of a pest population in injurious numbers, usually brought about after the application of a broad-spectrum pesticide has killed the natural enemies which normally keep a pest in check </li></ul>
    32. 35. Secondary pest outbreak <ul><li>a Flowering dogwood that has its bark knocked off by a lawn mower, is a prime target for the insect &quot;Dogwood borer&quot; to lay eggs </li></ul>
    33. 36. A practical application…
    34. 37. Another practical application
    35. 38. 1. Plant health care is a comprehensive program to manage <ul><li>insects </li></ul><ul><li>tree health without the use of pesticides </li></ul><ul><li>the appearance, structure and vitality of plants </li></ul><ul><li>pests, pathogens and abiotic disorders of trees </li></ul>
    36. 39. 2. The mortality spiral describes the <ul><li>process of infection and spread of disease in a tree </li></ul><ul><li>cumulative effects of stress causing decline of a plant </li></ul><ul><li>process in which pesticides eradicate both pests and beneficial insects </li></ul><ul><li>allocation of resources between growth, storage and defense </li></ul>
    37. 40. 3. The process of gathering information, assessing the severity and implications of the problem, determining client expectations and deciding upon a course or action is called <ul><li>The appropriate response process </li></ul><ul><li>Integrated pest management </li></ul><ul><li>The cultural control mechanism </li></ul><ul><li>Plant health care </li></ul>
    38. 41. 4. A systemic insecticide is one that <ul><li>Kills all living organisms </li></ul><ul><li>Kills insects on direct contact </li></ul><ul><li>Is translocated throughout the plant </li></ul><ul><li>Has no harmful effect on the environment </li></ul>
    39. 42. 5. Releasing predators or parasites of an insect pest is an example of a <ul><li>cultural control </li></ul><ul><li>mechanical control </li></ul><ul><li>biological control </li></ul><ul><li>chemical control </li></ul>