Answer:
Peppermint oil and morning, peppermint oil and night, lavender oil and morning, lavender oil and night
Step-by-step explanation:
Fertilisers are substances, which could be organic or inorganic, that is added to soil to increase crop yield.
Pesticide can be defined as substances that are used to control pests in an environment. Example of a pesticide includes:
- fungicides,
- herbicides( these are used to kill unwanted plants) and
- insecticides.
From the existing knowledge that the time of day the fertilizer is applied, morning and night affects the pesticide, and the Company managers know that peppermint oil or lavender oil will be used.
The insects should be subjected to the following treatments to effectively compare all combinations of these choices listed above:
- Peppermint oil and morning,
- peppermint oil and night,
- lavender oil and morning,
- lavender oil and night
