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.ISA Arborist Chapter 11 Questions and Answers 100% Pass
Course
ISA Arborist
Institution
ISA Arborist
ISA Arborist Chapter 11 Questions and Answers 100% Pass True/False - Plant Health Care and Integrated Pest Management are essentially the same thing. False Plant resources, produced through photosynthesis, are allocated among 4 primary functions: growth maintenance (reproduction) storage defense _______ can be described as any factor that limits a plant's ability to acquire sufficient light, water, or essential minerals. stress The _______ and _______ in tree cells are indigestible to many insects and other animals and even to some pathogens. cellulose, lignin Trees produce _______ such as tannins and phenols that have toxic or deterrent effects on certain insects. allelochemicals True/False - Researchers have observed that rapidly growing trees are sometimes less resistant to certain insects and diseases. True _______ is the process of observing, identifying, recording, and analyzing what happens with plants in the landscape. monitoring The process of gathering information, assessing the severity and implications of the problem, determining client expectations, and deciding on a course of action is called the _______ _______ _______. appropriate response process _______ _______ _______ is a systematic approach to insect and disease management that incorporates a combination of techniques including resistant plants as well as cultural, biological, and chemical control tactics. Integrated Pest Management True/False - A simple degree-day model uses an established threshold temperature and the daily average temperatures to predict pest development stages. True When possible, arborists should select trees that are ________ to known insects or diseases. resistant _______ _______ are organisms that are frequently encountered in landscapes, predictably cause injury to landscape plants, and may include particularly noxious pests in the area. key pests Extensive plantings of the same species, known as ________, can have catastrophic consequences if an uncontrollable problem is introduced. monocultures PHC practitioners must choose from three pest management goals: ________, _________, and ________. prevention, eradication, suppression True/False - Pesticides often kill the targeted pest within minutes or hours of application, whereas biological control can take days or weeks to suppress a pest population. True _______ pesticides are taken up by the plant and translocated throughout the branches and into the leaves. systemic _______ _______ occurs when the pest population rapidly rebounds in the absence of natural enemies, which are slower to repopulate than the pest. pest resurgence True/False - The use of multiple pesticides with different active ingredients or modes of action in a rotation system will increase the incidence of pesticide resistance. False True/False - Insecticidal soaps disrupt the cell membranes of soft-bodied insects and are effective on some scales, aphids, mealybugs, and spider mites. True True/False - Horticultural oil applications are always safe to use on trees in leaf because they have no phytotoxic properties. False _______ _______ _______ are synthetic compounds that act like insect hormones. insect growth regulators _______ _______ are derived from certain bacterial pathogens of insects. microbial pesticides Products that contain _______ _______ (Bt) are examples of microbial pesticides that utilize inset pathogens or lethal microbial byproducts derived from extracts of bacterial pathogens of insects. Bacillus thuringiensis The biological control strategy is based on the concept that many insect pests live in a natural, dynamic balance with _______, _______, and _______ that control pest populations. predators, parasites, and pathogens True/False - PHC practitioners should identify short - and/or long-term stress factors and remediate them using appropriate management techniques. True Plant Health Care is a comprehensive program to manage... the appearance, structure, and health of plants The mortality spiral describes the... cumulative effects of stress causing decline of a plant over time The process of gathering information, assessing the severity and implications of the problem, determining client expectations, and deciding on a course of action is called... the appropriate response process A systemic pesticide is one that... is translocated throughout the plant Releasing predators or parasites of an insect pest is an example of a... biological control
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