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Iowa 3OT Pesticide Manual Exam Questions With Accurate Answers Graded A+ $14.99   Add to cart

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Iowa 3OT Pesticide Manual Exam Questions With Accurate Answers Graded A+

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Iowa 3OT Pesticide Manual Exam Questions With Accurate Answers Graded A+...

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  • September 16, 2024
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  • Iowa 3OT Pesticide Manual
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Iowa 3OT Pesticide Manual Exam Questions With
Accurate Answers Graded A+


EPA reported this much was spent on pesticide use for
industrial/commercial/government sector and this much was spend for home and
garden sector in 2012 - Answer 1.4 billion; 3.3 billion



Define integrated pest management - Answer System that uses all available and suitable
pest control tactics to reduce pest populations to tolerable levels while minimizing
adverse environmental side effects.



Explain how aesthetic thresholds impact IPM strategies. -Answer Aesthetic threshold: a
level of pest density above which a control measure should be undertaken. Influenced
by tolerance, personal comfort, taste, plant appearance, and site conditions Nurseries
and other areas of high value would have zero tolerance to pests; however, the same
may be less for landscape plantings Healthy lawns are more resistant than previously
stressed, weakened ones



Explain how IPM can reduce reliance on pesticides -Answer Pesticides are not the quick
fix solution for all the problems.

IPM offers the most effective solutions in all respects and those solutions are not always
pesticides.



Name the six control strategies employed in IPM - Answer Cultural

Mechanical

Host resistance

Biological

Regulatory

chemical

,Define pesticide - Answer Any material used to kill, attract, repel, regulate, or interrupt
growth and mating of pests, or to regulate plant growth



Contact pesticides - Answer Must physically touch the pest organism or be sprayed on
the site the pest frequents to exert an action

Example would be protective fungicide

Must be re-applied to new plant tissues or if precipitation washes product off



Systemic pesticide - Answer Enters the plant via roots or above ground plant tissues
and is moved inside of the plant.

Could render plant toxic to insect or mice

Could move through plant to kill parts of the plant

Example would be curative fungicide because it penetrates the plant and stops disease



Preemergence - Answer Applied prior to weed seed germination.

Little to no effect on weeds that have emerged



Postemergence - Answer Applied to actively growing plants.

Work best in sunlight, high humidity, good soil moisture



Selective pesticide - Answer Control only certain types or stages of pests while leaving
nontarget organisms unaffected.

Example would be herbicide that kills broadleaf weeds and not turfgrass



Nonselective pesticide - Answer Exert their action on a wide variety of pests.

Control most of the plants they are sprayed on.



Identify the best application timing for effective pest control as it pertains to: plant
diseases, insects, and weeds - Answer Plant diseases

,For fungicides, it is critical that susceptible tissues be protected before an infection
begins or at the first appearance of any symptoms



Insects

The younger the stage of insect, the more susceptible it is to chemical control.



Weeds

Generally most effective when applied to actively growing plants and least effective
when plants are not actively growing

Annual weeds are easiest to control in early spring

Biennials should be treated in fall or early spring when in the rosette stage

Perennial weeds can be controlled in early bloom stage or in the fall



Describe how pesticide resistance develops in a pest population - Answer Resistance is
the ability of a pest species that was once effectively controlled by a pesticide to survive
spray concentrations that were previously effective.

This is inherited and arises from repeated applications of pesticides with the same site
of action or mode of action. Examples include pythium blight in turfgrass, botrytis in
ornamental, green peach aphid in insects, and goosegrass weeds.



Name one reason the numeric codes at the top of a pesticide label and pesticide
resistance are important. The Codes enable an applicator to understand the mode of
action by glancing at the group number.

Changing this can help minimize resistance



Name four ways to minimize pesticide drift. Properly selected nozzle

Lowered spray pressure

Weather monitoring

Holding the spray nozzle close to the target

, Summary of how pesticides can injure nontarget plants Answer Contact can kill or injure
plants

Movement into the root zone where it can be absorbed is also bad



List posting rules for a pesticide application Answer Required for urban areas or
municipalities

Notification signs must be posted at the start of an application to a treatment site

4 by 5 inches, weather proof, and above grass line

"This are is chemically treated. Keep off. Do not remove sign for 24 hours."



Clean up hard surfaces after a granular application - Answer Blow or sweep the material
back into the turfgrass area or on the plant beds.

Keep away from storm drain entrances



Name two characteristics of water that could affect a spray mixture performance -
Answer Water pH is one area of concern.

If the water is alkaline it may cause, alkaline hydrolysis if pH is greater than 7

In case, the water is acidic may cause acid hydrolysis if pH is less than 7



Hardness of water is another concern

Hardness is the amount of minerals that dissolve in water

Can inactivate pesticides



pH of most groundwater in Iowa has a pH between - Answer 6.5 and 8.0



name the pesticide application methods for leaves - Answer Foliar spray

Pesticides are directly sprayed onto plant leaves

Wiper application

Pesticide applied to selected vegetation through a rope-wick device

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