Applicator exam with answers |\ |\ |\
Growth regulator application is most effective when applied..? -
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CORRECT ANSWERS ✔✔in early spring when sod has greened -
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growth regulators slows down active growing so you want to apply
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while green so it's absorbed
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Which pressures help reduce herbicide drift? - CORRECT
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ANSWERS ✔✔Reducing spray pressure (to make bigger droplets
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that fall faster) and hanging nozzle to a type which emits larger
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droplets
Phenoxy-herbicides are widely used along roadsides because..? - |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔They don't damage grasses. Phenoxy's
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active ingredient is 2,4-D that only kills forbes (flowering plants)
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Soil sterilant misapplication and damage can sometimes be
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alleviated by mixing how many pound of activated charcoal per
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1000 sq ft for every pound of herbicide? - CORRECT ANSWERS
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✔✔3
, Which nonselective herbicides has the longest period of control
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when used at a given site? - CORRECT ANSWERS ✔✔Dichiobenil
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In order to avoid injury to nearby desirable trees; persistent,
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nonselective herbicides such as Hyvar should be applied..? -
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CORRECT ANSWERS ✔✔Outside an area equal to twice the heigh
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of the desirable tree
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Krenite is different from most brush herbicides because: -
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CORRECT ANSWERS ✔✔Little effect is seen the year of
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application
Herbicide spraying can be performed, as a general rule, until wind
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speed exceeds how many miles per hour? - CORRECT ANSWERS
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✔✔10
Which formulation doesn't dissolve in water? - CORRECT
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ANSWERS ✔✔wettable powders |\ |\
A major disadvantage of the phenix-herbicides is..? - CORRECT
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ANSWERS ✔✔They can damage desirable plants at very low rates,
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making them susceptible to drift damage
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