What is the legal authority governing: "What is the primary function of a 'surfactant' (surface-acti..."?

This standard is governed by Core Manual Chapter 8 under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) and 40 CFR Part 171.

What is the passing score for the EPA Pesticide Applicator exam?

The minimum passing score for the National Core Pesticide Applicator Certification exam is 70% (40 CFR § 171.103).

Pesticide Types And Formulations MEDIUM Core Manual Chapter 8

What is the primary function of a 'surfactant' (surface-active agent) adjuvant when added to a post-emergence herbicide spray tank?

Multiple Choice Options

A It reduces water droplet surface tension, allowing the spray to spread evenly and adhere to waxy plant foliage. ✓ OFFICIAL VERIFIED CORRECT ANSWER

B It increases water droplet freezing point to 50°F.

C It acts as a physical fertilizer to feed target weeds.

D It precipitates active ingredients to the tank bottom.

Core Manual Chapter 8

Official Manual Chapter: Chapter 8: Formulations & Adjuvants

Surfactants lower the surface tension of spray droplets, preventing them from bouncing or beading up on waxy leaf cuticles, thereby enhancing chemical absorption.

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What is the primary function of a 'surfactant' (surface-active agent) adjuvant when added to a post-emergence herbicide spray tank?

Multiple Choice Options

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