Chapter 12 - Types of pesticides Flashcards
A _________ is any chemical used to control pest.
pesticide
Insecticide is just another word for pesticide.
true or false?
false
How does a systemic insecticide act on the pest?
a. a systemic flows inside a treated plant and kills the pest when it eats the plant.
b. a systemic enters the pest and attacks only a particular body system, such as the pest’s nervous system.
c. a systemic kills insect pest on contact.
a. a systemic flows inside a treated plant and kills the pest when it eats the plant
The effect on beneficial insects is a primary concern when choosing a broad spectrum insecticide.
true or false?
true
Contact insecticides offer safety advantages in homes while residual insecticides are useful when the insects are a constant problem.
true or false?
true
Miticides are very similar in action and application to ____________.
a. fungicides
b. herbicides
c. insecticides
c. insecticides
Of the two types of fungicides, ___________ prevent plant diseases and __________ cure plant diseases.
protectants, eradicants
Eradicants are often used …
a. when protectants are too expensive or not available
b. when protectants have not been applied on time
c. when a disease breaks out unexpectedly.
d. all of the above
d. all of the above (a. when protectants are too expensive or not available b. when protectants have not been applied on time c. when a disease breaks out unexpectedly.)
Would you choose a selective or non-selective herbicide for weed control in a park?
a. selective
b. nonselective
a. selective
With herbicide applications, preplant means before the desired vegetation is planted. ____________ means before the weeds appear and _____________ means after both the desired vegetation and weeds appear.
preemergence , postemergence
What kind of chemical is used to alter or change the plant itself?
a. synthetic hormones
b. growth regulators
c. organocides
b. Growth regulators
Nematodes are…
a. fungal growths on roots.
b. tiny hair like organisms
c. small frogs that secrete a toxic chemical
b. tiny hair like organisms
A ______ _________ inhibitor kills immature insects by interfering with their growth and molting.
chitin synthesis
Insect growth regulators attack a growth process found only in insects so these chemicals are generally harmless to humans and other vertebrates.
true or false?
true
Although repellents should be used according to their label, they are not registered like other pesticides with the EPA.
true or false?
false
