Growsafe Spray Application Techniques 2

Question 1

What is the standard NZ practice for preventing spray tank contamination between different products?

Accepted Answer

Triple rinse the tank with clean water and dispose of rinsate appropriately

Answer

Simply drain the tank and refill with the new product

Answer

Use a separate tank for each product permanently

Answer

Add bleach to neutralise the previous chemical

Question 2

In NZ, what is the main advantage of using GPS guidance systems for agrichemical application?

Accepted Answer

Prevents overlapping and missed strips, ensuring even coverage

Answer

Eliminates the need for Growsafe certification

Answer

Removes the requirement for weather monitoring

Answer

Allows spraying at night without restrictions

Question 3

What does the term 'application rate' mean on a NZ agrichemical product label?

Accepted Answer

The amount of product to be applied per unit area (e.g., litres per hectare)

Answer

The speed at which the sprayer should travel

Answer

The concentration of active ingredient in the product

Answer

The maximum number of applications per season

Question 4

Why should agrichemical spraying generally be avoided during the hottest part of the day in NZ?

Accepted Answer

Increased evaporation reduces effectiveness and thermal updrafts increase drift

Answer

The chemical becomes more toxic in heat

Answer

Equipment is more likely to malfunction in high temperatures

Answer

Spraying during heat is an offence under NZ law

Question 5

What is a 'no-spray zone' in NZ agrichemical application?

Accepted Answer

An area where agrichemical application is prohibited, such as near waterways, dwellings, or sensitive areas

Answer

A section of the spray equipment that does not produce spray

Answer

An area that has already been treated and should not be re-sprayed

Answer

A zone within the storage facility where mixing is prohibited

Question 6

According to NZ Growsafe, what should the operator do if spray equipment develops a leak during application?

Accepted Answer

Stop spraying immediately, contain the leak, and clean up the spill according to the emergency plan

Answer

Continue spraying to finish the job and fix the leak later

Answer

Increase the pump pressure to compensate for the leak

Answer

Report it to the EPA within 30 days