Washington Pesticide laws and safety Exam
Questions and Answers with Verified
Solutions | Latest Updated 2026
EPA has authority to Stop sale or use of any pesticide
Dealer-manager must be When commercial pesticide is sold or
present distributed
FIRFA Federal Insecticide, Fungicide, and
Rodenticide Act
Minimum fine for 3 major label $22,500
violations
Body that administers WSDA
pesticide licensing in WA
Every pesticide distributed in must be registered with WSDA
WA
SLN registration Allows additional application sites to a
federal label
Read the label To avoid harming environment,
misapplying pesticides, and violating the
law
, Choosing a formulation Legal, labeled uses
The signal word
Applicator safety
Environmental safety
Pest biology
Site characteristics
Target (surface treated)
Application equipment
Synergism Effectiveness of chemicals mixed
together, rather than individual chemicals
Antagonism Decreasing effectiveness when chemicals
are mixed
Compatible Two or more pesticides that can be
mixed
Incompatible Pesticides that can't be combined
effectively
incompatibility Loss of effectiveness
Phytotoxicity
Hazard increased to applicator or treated
animals
Clogging of equipment
Jar test Container
Tank water
Add products
Shake jar
Test mix on plant
Questions and Answers with Verified
Solutions | Latest Updated 2026
EPA has authority to Stop sale or use of any pesticide
Dealer-manager must be When commercial pesticide is sold or
present distributed
FIRFA Federal Insecticide, Fungicide, and
Rodenticide Act
Minimum fine for 3 major label $22,500
violations
Body that administers WSDA
pesticide licensing in WA
Every pesticide distributed in must be registered with WSDA
WA
SLN registration Allows additional application sites to a
federal label
Read the label To avoid harming environment,
misapplying pesticides, and violating the
law
, Choosing a formulation Legal, labeled uses
The signal word
Applicator safety
Environmental safety
Pest biology
Site characteristics
Target (surface treated)
Application equipment
Synergism Effectiveness of chemicals mixed
together, rather than individual chemicals
Antagonism Decreasing effectiveness when chemicals
are mixed
Compatible Two or more pesticides that can be
mixed
Incompatible Pesticides that can't be combined
effectively
incompatibility Loss of effectiveness
Phytotoxicity
Hazard increased to applicator or treated
animals
Clogging of equipment
Jar test Container
Tank water
Add products
Shake jar
Test mix on plant