©THESTAR EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
QAL & QAC Exam Study Guide.
Pesticides are - answer✔Substance that control pests, they may be either naturally-occurring
compounds like sulfur or synthetic (i.e. man-made) compounds like the insecticide malathion.
Pesticides are - answer✔1. Compounds that control pests
2. Plants defoliants
3. Plant growth regulators
4. Adjuvants
Plant defoliants are in - answer✔use to remove leaves from plants, most often to aid in the
harvest of crops.
Plant growth regulators (PGR) are - answer✔used to alter plant growth or development.
Adjuvants - answer✔a product added to the tank to improve a pesticides performance.. it may
improve the wetting ability of the mixture, increase the pesticides penetration in to plants or
insects tissue or may prevent pesticide drift.
Although adjuvants have no significant pesticidal activity, DPR regulates them in almost the
same way it regulates pesticides.
1|Page
, ©THESTAR EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
examples of adjuvants - answer✔Surfactants... helps pesticides get inside target plants like
weeds.
Stickers... helps the pesticide stay on the target plant's leaves.
Buffers... makes acidic or alkaline mix water more neutral.
Drift control agents or deposition aids... Prevent spray drift.
Defoamers... reduce tank-foaming
Spreader- stickers
Pesticide Formulations - answer✔A mixture of 2 or more compounds. Pesticides formulations
are made up of an active ingredient and 1 or more inert ingredients.
Active ingredients have pesticidal activity.
2|Page
ALL RIGHTS RESERVED.
QAL & QAC Exam Study Guide.
Pesticides are - answer✔Substance that control pests, they may be either naturally-occurring
compounds like sulfur or synthetic (i.e. man-made) compounds like the insecticide malathion.
Pesticides are - answer✔1. Compounds that control pests
2. Plants defoliants
3. Plant growth regulators
4. Adjuvants
Plant defoliants are in - answer✔use to remove leaves from plants, most often to aid in the
harvest of crops.
Plant growth regulators (PGR) are - answer✔used to alter plant growth or development.
Adjuvants - answer✔a product added to the tank to improve a pesticides performance.. it may
improve the wetting ability of the mixture, increase the pesticides penetration in to plants or
insects tissue or may prevent pesticide drift.
Although adjuvants have no significant pesticidal activity, DPR regulates them in almost the
same way it regulates pesticides.
1|Page
, ©THESTAR EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
examples of adjuvants - answer✔Surfactants... helps pesticides get inside target plants like
weeds.
Stickers... helps the pesticide stay on the target plant's leaves.
Buffers... makes acidic or alkaline mix water more neutral.
Drift control agents or deposition aids... Prevent spray drift.
Defoamers... reduce tank-foaming
Spreader- stickers
Pesticide Formulations - answer✔A mixture of 2 or more compounds. Pesticides formulations
are made up of an active ingredient and 1 or more inert ingredients.
Active ingredients have pesticidal activity.
2|Page
