ILLINOIS PESTICIDE APPLICATOR FINAL EXAM
ACTUAL ALL QUESTIONS AND ANSWERS SURE A+
✔✔Restricted use pesticides - ✔✔Only purchased by certified applicators or persons
under their supervision
Records of applications must be maintained for 2 years
✔✔Adjuvant - ✔✔Chemical modifies physical properties, enhances performance or both
of pesticides
Includes spray modifiers
✔✔Activatior adjuvants - ✔✔Water spreader (surfactants), Sticker (oils, laytex),
humectant,penetrator
✔✔utility adjuvants - ✔✔defoamer, water conditioner (acids)
✔✔Drift reduction additives - ✔✔thickening agents increase droplet size
Droplets must be over 200 microns
✔✔Sticker - ✔✔increase adherence of chemical to surface
✔✔Surfactant, Spreaders - ✔✔Spread spray mix more thoroughly
Decreases surface tension of water
,✔✔Penetrants - ✔✔helps pass through outer surface of plants - through waxy coating
on leaves (cuticle)
✔✔Defoaming agents - ✔✔eliminate foam from spray tanks (especially during agitation)
✔✔Mixing of pesticides - ✔✔ensure that pesticides retain properties when you mix
Do not change toxicity or physical properties when combined
Illegal to mix pesticides with products prohibited on label
✔✔Chemical incompatibility - ✔✔antagonism: decrease effectiveness
Synergism: increase effectiveness (can be bad)
*cannot tell if chemically incompatible by mixing alone
✔✔physical incompatibility - ✔✔pesticides don't mix properly
Curdling, gel formation, sludge
Perform jar compatibility test
✔✔Proper mixing order - ✔✔1) fill tank 1/4-1/2 full of carrier and agitate
2) add compatibility agent
3) add suspension products. Dry first (WP, DF), then liquids (F,L)
4) add emulsion products (EC)
5) add solution products
6) add surfactants/penetrants
7) finish filling tank
✔✔Residual or persistent pesticides - ✔✔Remain active for days, weeks, years
Pre- emergence or early pre-plant
Residue may be harmful to non-targets
✔✔PHI - ✔✔Preharvest interval - latest time to spray prior to harvest
✔✔Tolerance - ✔✔amount of chemical residue that can legally remain on food or feed
✔✔Selective pesticides - ✔✔control pest with little injury to related organisms
✔✔Non selective (broad spectrum) - ✔✔control nearly all related organisms. May result
in pest resurgence by killing beneficials
✔✔Nonselective pesticide resistance - ✔✔Over use of broad spectrum pesticides
Insects - may kill natural preditors of pest -> resurgence
Plants - over time only plants that are resistant survive and produce seed
, ✔✔systemic (translocated) pesticide - ✔✔move in plant / animal from uptake site to
other parts
Effective in plants with underground structures
✔✔Contact pesticide - ✔✔control by direct contact with pest
kill annuals if all growing parts are above ground
✔✔Information on a label - ✔✔Impact on wildlife, PPE, Re- entry interval
✔✔Before purchasing read label - ✔✔label is legal document, general use pesticide is
not given classification
✔✔Label - Trade name - ✔✔this specific formulation
✔✔label - chemical name - ✔✔shows what active ingredients in formulation
✔✔label - AI concentration - ✔✔important for determining rates
✔✔label - EPA registration number - ✔✔unique to every formulation
✔✔label - PPE requirements - ✔✔must follow these
✔✔label - hazard statement - ✔✔volunteers can only apply herbicides labeled as
caution
✔✔label - manufacturer contact info - ✔✔Incase of emergency
✔✔label - general info - ✔✔basic info on how pesticide works and how long it takes to
see effects, what conditions to treat
✔✔Label - cautionary statements - ✔✔avoid unintended injury to non-targets
✔✔Label - spray solution chart - ✔✔determine amount needed for different solution
strengths
✔✔Label - control recommendations - ✔✔Recommendations for control of different
weeds
✔✔Label - species specific control recommendations chart - ✔✔Control
recommendations for specific species
✔✔Label - wetland/ aquatic info - ✔✔if applying near water need to use product labeled
for use in those areas. Specific info about this type of application
ACTUAL ALL QUESTIONS AND ANSWERS SURE A+
✔✔Restricted use pesticides - ✔✔Only purchased by certified applicators or persons
under their supervision
Records of applications must be maintained for 2 years
✔✔Adjuvant - ✔✔Chemical modifies physical properties, enhances performance or both
of pesticides
Includes spray modifiers
✔✔Activatior adjuvants - ✔✔Water spreader (surfactants), Sticker (oils, laytex),
humectant,penetrator
✔✔utility adjuvants - ✔✔defoamer, water conditioner (acids)
✔✔Drift reduction additives - ✔✔thickening agents increase droplet size
Droplets must be over 200 microns
✔✔Sticker - ✔✔increase adherence of chemical to surface
✔✔Surfactant, Spreaders - ✔✔Spread spray mix more thoroughly
Decreases surface tension of water
,✔✔Penetrants - ✔✔helps pass through outer surface of plants - through waxy coating
on leaves (cuticle)
✔✔Defoaming agents - ✔✔eliminate foam from spray tanks (especially during agitation)
✔✔Mixing of pesticides - ✔✔ensure that pesticides retain properties when you mix
Do not change toxicity or physical properties when combined
Illegal to mix pesticides with products prohibited on label
✔✔Chemical incompatibility - ✔✔antagonism: decrease effectiveness
Synergism: increase effectiveness (can be bad)
*cannot tell if chemically incompatible by mixing alone
✔✔physical incompatibility - ✔✔pesticides don't mix properly
Curdling, gel formation, sludge
Perform jar compatibility test
✔✔Proper mixing order - ✔✔1) fill tank 1/4-1/2 full of carrier and agitate
2) add compatibility agent
3) add suspension products. Dry first (WP, DF), then liquids (F,L)
4) add emulsion products (EC)
5) add solution products
6) add surfactants/penetrants
7) finish filling tank
✔✔Residual or persistent pesticides - ✔✔Remain active for days, weeks, years
Pre- emergence or early pre-plant
Residue may be harmful to non-targets
✔✔PHI - ✔✔Preharvest interval - latest time to spray prior to harvest
✔✔Tolerance - ✔✔amount of chemical residue that can legally remain on food or feed
✔✔Selective pesticides - ✔✔control pest with little injury to related organisms
✔✔Non selective (broad spectrum) - ✔✔control nearly all related organisms. May result
in pest resurgence by killing beneficials
✔✔Nonselective pesticide resistance - ✔✔Over use of broad spectrum pesticides
Insects - may kill natural preditors of pest -> resurgence
Plants - over time only plants that are resistant survive and produce seed
, ✔✔systemic (translocated) pesticide - ✔✔move in plant / animal from uptake site to
other parts
Effective in plants with underground structures
✔✔Contact pesticide - ✔✔control by direct contact with pest
kill annuals if all growing parts are above ground
✔✔Information on a label - ✔✔Impact on wildlife, PPE, Re- entry interval
✔✔Before purchasing read label - ✔✔label is legal document, general use pesticide is
not given classification
✔✔Label - Trade name - ✔✔this specific formulation
✔✔label - chemical name - ✔✔shows what active ingredients in formulation
✔✔label - AI concentration - ✔✔important for determining rates
✔✔label - EPA registration number - ✔✔unique to every formulation
✔✔label - PPE requirements - ✔✔must follow these
✔✔label - hazard statement - ✔✔volunteers can only apply herbicides labeled as
caution
✔✔label - manufacturer contact info - ✔✔Incase of emergency
✔✔label - general info - ✔✔basic info on how pesticide works and how long it takes to
see effects, what conditions to treat
✔✔Label - cautionary statements - ✔✔avoid unintended injury to non-targets
✔✔Label - spray solution chart - ✔✔determine amount needed for different solution
strengths
✔✔Label - control recommendations - ✔✔Recommendations for control of different
weeds
✔✔Label - species specific control recommendations chart - ✔✔Control
recommendations for specific species
✔✔Label - wetland/ aquatic info - ✔✔if applying near water need to use product labeled
for use in those areas. Specific info about this type of application
