Pesticide Formulations

Question 1

Dry Flowable (DF) / Water Dispersible Granule (WDG)

Answer 1

Formulated into small pellets or granules. Forms a suspension in water.

Question 2

Granular (G)

Answer 2

Mix of dry, large free-flowing particles. Usually with a low ai concentration.

Question 3

Soluble Powder

Answer 3

Dry material that goes into true solution when mixed with water.

Question 4

Concentrated Emulsion (EW)

Answer 4

Consists of thick water-based emulsion and an ai paste. Diluted in a spray tank for application.

Question 5

Emulsifiable Concentrate (EC or E)

Answer 5

Clear solution with emulsifiers to be diluted in water. Final spray solution has a milky look.

Question 6

Flowable (F)

Answer 6

Finely ground particles suspended in a liquid carrier. Forms suspension in spray mix.

Question 7

Gel

Answer 7

Semi-liquid, emulsifiable concentrate.

Question 8

Micro-encapsulated suspension

Answer 8

Suspension with ai impregnated in very small, slow release plastic beads.

Question 9

Suspension Concentrate (SC)

Answer 9

Finely ground particles in a liquid base. Forms suspension when diluted with water.

Question 10

True Liquid Solution (L)

Answer 10

ai is in solution, usually water. When mized with water, remains clear.

Question 11

Water Soluble Packets (WSP)

Answer 11

Pre-weighed amount of WP, SP, or gel formulation in a plastic bag which dissolves in spray tank and releases contents.

Question 12

Adjuvants

Answer 12

Additional ingredients which can be mixed with pesticide spray mixture to reduce the number of fine droplets and thereby decrease drift, increase the effectiveness of the ai, and make application easier.

Question 13

Surfactants

Answer 13

A class of adjuvants that includes spreaders and stickers that change the surface tension of the spray solution. When the surface tension of spray solution is reduced, spray droplets are more likely to remain on leaves without bouncing or rolling off.

Question 14

Synergists

Answer 14

Can increase the activity of pesticides by blocking the pest’s ability to break the chemical down into a harmless compound.

Question 15

Copper chelates, Copper sulfates

Answer 15

Contact herbicide, cell membrane disruptor, low persistence, algae and green plants.

Question 16

Diquat

Answer 16

Contact herbicide, cell membrane disruptor, low persistence, non-selective.

Question 17

Endothall

Answer 17

Contact herbicide, unknown MoA, low persistence, pondweeds, coontails, algae.

Question 18

Flumioxazin

Answer 18

Contact herbicide, amino acid synthesis inhibitor, low persistence, broadleaf.

Question 19

2,4-D

Answer 19

Systemic herbicide, growth regulator, low persistence, broadleaf weeds.

Question 20

Fluridone

Answer 20

Systemic herbicide, pigment inhibitor, high persistence, selectivity rate-dependent.

Question 21

Glyphosate

Answer 21

Systemic herbicide, amino acid synthesis inhibitor, low persistence, non-selective.

Question 22

Imazamox

Answer 22

Systemic herbicide, amino acid synthesis inhibitor, low persistence, broadleaf weeds.

Question 23

Triclopyr

Answer 23

Systemic herbicide, growth regulator, low persistence, broadleaf weeds.