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Private Applicator Re-certification Quiz II . For Fun and Prizes. Question #1. How would you safely and effectively unplug a sprayer nozzle? a) use a pin b) use the tip of a knife c) use your mouth to blow on nozzle d) use a tooth brush or soft bristle brush e) use a paper clip

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question 1
Question #1

How would you safely and effectively unplug a sprayer nozzle? a) use a pin b) use the tip of a knife c) use your mouth to blow on nozzle d) use a tooth brush or soft bristle brush e) use a paper clip

Answer: d

question 2
Question #2

The improper application of pesticides can cause harm to: a) the soil and air b) wildlife c) ground and surface water d) the applicator e) all of the above

Answer: e

question 3
Question #3

What are these insect pests? a) potato leafhoppers b) aphids c) thrips d) spider mites e) flea beetles

Answer: b

question 4
Question #4

Which of the following pesticides below is the most toxic? a) Methoxychlor, LD50 : 6000 mg/kgb) Rotenone, LD50 : 39 mg/kgc) Diazinon, LD50 : 300 mg/kg d) Methyl Parathion, LD50 : 6 mg/kg e) Malathion, LD50 : 1375 mg/kg

Answer: d

question 5
Question #5

What are the variables that you can use to adjust the amount of spray delivered by boom sprayers?

a) pressure b) nozzle tip orifice size c) boom height d) ground speed of sprayer e) nozzle spacing on the boom f) all of the above

Answer: a, b, d, e

question 6
Question #6

Which of these can move pesticides off of the application site? a) air b) water c) erosion d) objects (critters, people, equipment) e) all of the above

Answer: e

question 7
Question #7

Which of these factors affect pesticide drift? a) pesticide formulation b) spray additives c) particle size d) method of application e) rate of application f) climate g) all of the above

Answer: g

question 8
Question #8

Which of the following factors favor the breakdown of pesticide residues? a) cool temperatures b) direct sunlight c) high organic matter d) high pH e) presence of macro-organisms

Answer:b

question 9
Question #9

Are contact herbicides more effective against annual or perennial weeds? Why?

Answer:annual

question 10
Question #10

How can tolerance to pesticides by pests be avoided: 1) to fungicides, 2) to insecticides, and 3) to herbicides? Answer:

1) alternate fungicide chemistry

2) alternate insecticide chemistry, insure that products have lethal dose, crop rotation

3) alternate herbicide chemistry, crop rotation

question 11
Question #11

Which of these factors affects herbicide application results? a) application rate b) uniformity of distribution c) weather conditions d) retention e) photodecomposition f) all of the above

Answer:f

question 12
Question #12

Which of these factors affects the effectiveness of pesticides for plant protection? a) residual effectiveness b) type of foliage (denseness) c) leaf surface d) spray coverage e) time of application f) all of the above

Answer: f

question 13
Question #13

An applicator in Maryland is not legally required to keep a record of a pesticide application if the pesticide applied was not a restricted use pesticide? True or False

Answer:false

question 14
Question #14

We all know that wind speed affects the drift potential of pesticides during application. What is the optimum wind speed? a) 0 mph b) 1-3 mph c) 4-10 mph d) 11-16 mph

Answer:c