ANSWERS RATED A+
✔✔What is needed to apply a pesticide legally when a pest problem arises for which
food or feed commodity is not on the registered pesticide label or a tolerance has not
been established? - ✔✔An emergency exemption.
✔✔The active ingredient in Lorsban 75WG is listed as chlorprifos 0,0-diethyl 0-trichloro
2 pyridinyl) phosphorothioate. What does the term "chlorpyrifos" represent? - ✔✔The
common name.
✔✔Which statement about pesticide label names and ingredients is true? - ✔✔Various
manufactures use different trade names, even though the products contain the same
active ingredient.
✔✔What is the purpose of the signal word? - ✔✔To give the user an indication of the
relative acute toxicity of the product to human and animals.
✔✔The route of entry statement on a label " Extremely hazardous by skin contact -
rapidly absorbed through the skin" would most likely appear with which signal word? -
✔✔Danger.
✔✔The statement "do not breathe vapors or spray mist" is an example of - ✔✔A route
of entry statement.
✔✔Which is true about statements of practical treatment? - ✔✔All Danger labels
contain a note to physicians describing appropriate medical procedures.
✔✔Directions for mixing and loading a pesticide are usually found under - ✔✔The
directions for use.
✔✔Who is responsible for developing MSDS on specific chemicals and providing them
on request? - ✔✔The product manufacture.
✔✔The name sevin 5G on a pesticide label indicates? - ✔✔A granular pesticide with
5% active ingredients
✔✔Which is the pesticide formulation process by which solid particles are dispersed
into liquid? - ✔✔Suspension
✔✔Which liquid pesticide formulation consists of a small amount of active ingredient
(Often one % or less per unit volume ) dissolved in an organic solvent? - ✔✔Ready to
use low concentrate solutions RTU
, ✔✔Which liquid pesticide formulation may approach 100 percent active ingredient? -
✔✔Ultra low volume ULV
✔✔Which is a disadvantage of both EC and ULV formulations? - ✔✔Solvents may
cause rubber or plastic hoses gaskets and pump parts and surfaces to deteriorate
✔✔Which dry/solid formulation is mixed in water and reduces the risk of inhalation
exposure during mixing and loading? - ✔✔Water dispersable granules WDG or dry
flowables (DF)
✔✔Which type of dry/ solid pesticide formulation consist of particles that are the same
weight and shape? - ✔✔Pellets
✔✔Which is an advantage of microencapsulated materials? - ✔✔Delayed or slow
release of the active ingredient prolongs effectiveness
✔✔Which type of adjuvant functions as wetting agents and spreaders (they physically
alter the surface tension of spray droplets)? - ✔✔Surfactants
✔✔Which type of adjuvant increases the viscosity of spray mixtures? - ✔✔Thickeners
✔✔Which property of a pesticide would make it more likely to move with water in
surface water? - ✔✔High solubility
✔✔Which statement is true about ground water or surface water contamination by
pesticides? - ✔✔Runoff erosion are sources of surface water contamination by
pesticides
✔✔Which is an example of non point source contamination of groundwater? -
✔✔Pesticides that dissolve and leach through soil after it rains
✔✔Under what soil conditions are pesticides more likely to leach through the soil? -
✔✔Sandy soil low in organic mater.
✔✔Which is a recommended best management practice for preventing contamination of
surface and ground water by pesticides? - ✔✔Use terrace and conservation tillage
practices.
✔✔What two things should pesticide applicators be most aware of to avoid spray drift? -
✔✔Droplet size and wind direction and speed
✔✔What two things should pesticide applicators be most aware of to avoid vapor drift? -
✔✔Temperature and pesticide volatility