Certified Arborist Test 2025 – 400 Free Practice Questions to Pass the Exam

Watering plants early in the day is primarily aimed at reducing evaporation losses. During the early hours, temperatures are generally cooler and humidity levels are higher, which means that water applied to the soil will have a better chance to permeate the root zone before the sun's heat causes excessive evaporation. This practice ensures that more water is available to the plants while minimizing water wastage, which is especially crucial in managing resources effectively, particularly in drier climates or during periods of drought.

While promoting soil compaction, preventing fungal diseases, and enhancing leaf growth can be influenced by watering practices, these are not the primary reasons for the timing of watering. Soil compaction typically results from physical pressure on the soil, often unrelated to watering timing, whereas watering too late in the day can actually create conditions favorable to fungal diseases due to prolonged moisture in cooler nighttime temperatures. Similarly, while adequate moisture is essential for healthy leaf growth, the focus on timing in this question is specifically associated with evaporation reduction.