Floriculture CDE-(Book 18)

An example of an inorganic insecticide is a sulfur b Sevin c malathion d rotenone

A

Application of dust insecticides requires a all of these choices b a duster c a quiet day to reduce drift of the insecticide d no dillution

A

Systemic insecticides are most effective in killing insects that feed by a sucking b none of these choices c chewing d night

A

The proper amount of spray insecticide has been applied to a plant when a the liquid just begins to drip on the leaves b the leaves are damp c none of the above d the bugs begin to die

A

Wettable powders (WP) are powdered insecticides that a all of these choices b must be diluted with water c are ready to apply with a duster when purchased d are used only on chewing insects

B

When buying an insecticide to eliminate a specific insect, one should purchase a chemical a that is safe to use b all of these choices c that is recommended for that insect d only after reading the label

B

An example of an insecticide that is used as a fumigant is a DDT b Sevin c methyl bromide d malathion

C

An insecticide packaged in a pressurized can is called a(n) a home and garden spray b homeowner's spray c aerosol d convenience package

C

Emulsifiable concentrates (EC) are liquid insecticides that must be a used for chewing insects only b all of these choices c diluted with water d used as contact sprays

C

Stomach poison insecticides work best a on sucking insects b as a contact insecticide c on chewing insects d on nematodes

C

The legs of every insect are fastened to the body part known as the a shank b head c thorax d abdomen

C

An example of a natural organic insecticide is a sulfur b Sevin c malathion d pyrethrum

D

An example of a synthetic organic insecticide is a gamma radiation b rotenone c diazinon d malathion

D

How many pairs of legs to insects have a four b six c two d three

D

Insecticides that come in the form of small pellets that are scattered on the soil surface are called a baits b none of these choices c pellets d granules

D

The insecticides that are most toxic to hum beings are the a carbaryls b chlorinated hydrocarbons c carbamates d organophosphates

D

nsecticides that remain active in the environment for the longest period of time are a none of these choices b organophosphates c carbaryls d chlorinated hydrocarbons

D