Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

L5 - 1 - Plant Protection > LO 3.2 - Formulations > Flashcards

LO 3.2 - Formulations Flashcards

- wettable powder, emulsifiable concentrate, liquid, granular/pellets, dusts, seed dressings, water dispersible granules, micro-encapsulated, fumigants.

1
Q

Question

What is a formulation?

LO 3.2 Formulations

A
  • All the ingredients in a pesticide product.
  • The active ingredients (the actual pesticide)
  • The inert (inactive) ingredients
  • Usually formulations are diluted in water, a petroleum-based solvent or other.

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Question

What are the main components of a pesticide?

LO 3.2 Formulations

A

Pesticied main components
1. The active ingredient (a.i.)
2. An inactive carrier
3. Adjuvants

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Question

What is meant by active ingredient (a.i.) in pesticide?

LO 3.2 Formulations

A
  1. The active ingredient (a.i.)
    * The material that controls the problem.
    * E.g. Glyphosate in Roundup

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Question

What is meant by Inactive carrier in pesticides?

LO 3.2 Formulations

A

An inactive carrier
* Used to ‘bulk up’ the pesticide, makes it easier to measure / mix the pesticide.
* Eg. water, oil, xylene.
* Xylene is a hydrocarbon closely related to benzene

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Question

What is meant by Adjuvants in pesticides?

LO 3.2 Formulations

A

Adjuvants

  • Are wetting agents or emulsifiers, that make the product more efficient

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Question

Where can you find the information for each product?

LO 3.2 Formulations

A

All the information can be found on the Label, Leaflet, Web.

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Question

Name some different types of formulations.

name 3

LO 3.2 Formulations

A

Formulation types

Solids

  • Dusts or powders
  • Granules or pellets

Liquids

  • Suspensions
  • Solutions
  • Emulsions

Gases

  • Fumigants sold as liquids or solids

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Question

What form do solid formulations come in?

Name 2

LO 3.2 Formulations

A

Solid formulations

  • Dusts or powders
  • Granules or pellets

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Question

What form do Liquid formulations come in?

Name 3

LO 3.2 Formulations

A

Liquid Formulations

  • Suspensions (more on next slides)
  • Solutions
  • Emulsions

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Question

What form do Gas/Fumigants formulations come in?

Name 3

LO 3.2 Formulations

A

Gas or Fumigant formulations

  • Liquids
  • Solids

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Question

What are some properties of Solutions?

Name 3

LO 3.2 Formulations

A

A solution results when a substance is dissolved in a liquid.

  • The components of a true solution cannot be mechanically separated.
  • A true solution does not require agitation to keep its various parts from settling.

Solutions are frequently transparent

  • If they are dark coloured, this may not be the case…..

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Question

What are some properties of a Suspension?

Name 5

LO 3.2 Formulations

A

A suspension is a mixture of finely divided, solid particles dispersed in a liquid.

  • Have a cloudy, murky appearance.
  • Particles do not dissolve, and the mixture must be agitated.
  • The label directs the user to shake well before use.
  • Most products remain as suspensions when mixed with water.

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Question

What are some properties of an Emulsion?

Name 5

LO 3.2 Formulations

A

An emulsion occurs when one liquid is dispersed (as droplets) in another liquid.

  • Each liquid retains its original identity.
  • Some degree of agitation generally is required.
  • Emulsions usually have a milky appearance.
  • The active ingredient is dissolved in an oil-based solvent.
  • When an oily product is mixed with water, an emulsion (oil in water) is formed.

An emulsifying agent formulated into a product helps prevent the emulsion from separating.

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Question

What are Emulsifiable Concentrates (EC)?

Name 3

LO 3.2 Formulations

A
  • The formulation of an active ingredient as an Emulsifiable Concentrate is still common as it is simple to manufacture and low in cost.
  • It contains the active ingredient, a solvent and an emulsifier system that allows the formulation to be mixed with water to form a stable emulsion.
  • Other examples of EC’s include - Paint.

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Question

What are Soluble Liquids (SL)?

LO 3.2 Formulations

A

Active ingredients which dissolve readily in water can be formulated as soluble liquids.

The biological performance of herbicides and sometimes fungicides can be improved by using additives, often called Adjuvants.

  • To achieve a better wetting on plant leaves, additional wetting agents can be added to the concentrate.
  • To inhibit foaming, a de-foamer can be added.

LO 3.2 Formulations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Question

What are Ready to use products?

Name 5

LO 3.2 Formulations

A

Ready to use products

  • Pre-mixed pesticide products.
  • Contain active ingredient and correct amount of solvent.
  • Often 1% or less of active ingredient.
  • No further dilution is required.
  • Home market products.

LO 3.2 Formulations

17
Q

Question

What are Dry / Solid formulations?

Name 5

LO 3.2 Formulations

A

Granules contain an inert filler such as charcoal or pumice which are coated with the chemical.

  • Chikara (Flazasulfuron 25%) residual herbicides

Dusts contain finely ground mixture of a.i. combined with talc or clay.

  • Only applied dry to leaves or soil

Seed Dressings contain a low a.i. applied in inert clay like filler to reduce risk of chemical damage to the germinating seed.

LO 3.2 Formulations

18
Q

Question

What are Wettable Powders (WP)?

Name 5

LO 3.2 Formulations

A

Wettable powder formulations are applied as suspensions after dispersion in water.

They consist of one or more active ingredients which are blended and mixed with inert diluents and adjuvants.

  • Wetting agents are used to facilitate the suspension of the particles in water.
  • A dispersing agent is added to prevent any flocculation of the suspension before it is applied. » Flocculation = formation of “lumps”

LO 3.2 Formulations

19
Q

Question

What type of formulation does the product Masai have?

LO 3.2 Formulations

A

Masai is a wettable powder.

  • 2.1 Resistance management: Masai is a mitochondrial electron transport inhibitor (METI) acaricide acting at Complex I (IRAC MoA Group 21).

LO 3.2 Formulations

20
Q

Question

What are Water Dispersible Granules (WDG)?

LO 3.2 Formulations

A

Water Dispersible Granules (WDG)
Water dispersible granules are intended for application after disintegration and dispersion in water by conventional spraying equipment.

  • E.g. ICL
  • Iron-sulfate for greening grass

LO 3.2 Formulations

21
Q

Question

What type of formulation is Fenomenal?

LO 3.2 Formulations

A

Fenomenal

  • Water dispersible granule (WDG)
  • It’s a fungicide.
  • Systemic activity against soil borne Phytophthora infections of strawberries.

LO 3.2 Formulations

22
Q

Question

What type of formulation is Chikara?

LO 3.2 Formulations

A

Chikara

  • Water dispersible granule (WDG)
  • It’s a herbicide.
  • Systemic activity against soil borne Phytophthora infections of strawberries.

LO 3.2 Formulations

L5 - 1 - Plant Protection (48 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions