answers
what system is an appropriate practice to keep populations below the economic injury level in crops and
below the aesthetic injury level in non-crops or ornamental plantings? - correct answer ✔✔integrated
pest managements (IPM)
what cultural control tactic is the best defense against invading weeds to insure a dense, vigorous stand
of turf grass? - correct answer ✔✔proper fertilization and mowing
what should applicators/ operators take into account when selecting and applying pesticides? - correct
answer ✔✔Are there other non-chemical controls available. Has scouting indicated the pest populations
is high enough. Is it the correct time to apply and get control. (All of the above).
what is unique about an insect that undergoes incomplete development or (simple metamorphosis)
such as a grasshopper? - correct answer ✔✔They undergo 3 life stages (Egg-Nymph-Adult) where the
nymph cannot fly and cannot reproduce.
what stage of insect development is often called the "resting stage" because it cannot feed and usually
not very active? - correct answer ✔✔Pupa
what can cause a non-infectious disease in ornamental plants? - correct answer ✔✔temperature and
moisture extremes
what is a characteristic of infectious plant diseases in crops? - correct answer ✔✔Pathogens multiply on
or within the host plant and can be transmitted from one plant to another.
How do applicators, operators, plant pathologist and others recognize a plant that is diseased? - correct
answer ✔✔By recognizing symptoms such as leaf spot or chlorosis.
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, what growth stage of weeds is easiest to control with herbicides or cultivation? - correct answer
✔✔weeds that are in the seedling stage
which of the following weeds emerge from seed that germinate in the fall, overwinter as seedlings,
flower, produce seed and die in the early summer. - correct answer ✔✔winter annuals
to control the majority of perennial weeds what treatment is usually recommended? - correct answer
✔✔A systemic herbicide applied at early bud to bloom stage or early fall when plants are replenishing
food supplies below ground.
which of the following conditions are not necessary for a plant disease to develop in crops? - correct
answer ✔✔There must be a susceptible host and pathogen, time for disease to develop and a favorable
environment. (Diseases do not need an insect vector)
what portion of the pesticide formulation is effective against target pests? - correct answer ✔✔Active
ingredient
what term indicates solvents, emulsifiers, and adjuvants in a pesticide formulation? - correct answer
✔✔insert ingredients
what type of pesticide would you select to control a specific pest with little or no injury to related
organisms such as desirable plants or beneficial insects? - correct answer ✔✔Selective pesticide
How many lbs. of active ingredient are in a 20 lb. container of OUTOFHERE 50WP. - correct answer
✔✔10 lbs.
what type of pesticides do not move within the host plant and require thorough coverage for effective
control. - correct answer ✔✔Contact pesticide
what characteristics do wettable powders and water dispersing granules have in common? - correct
answer ✔✔form a suspension that requires constant agitation and are abrasive to pumps.
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