VIRGINIA COMMERCIAL PESTICIDE APPLICATORS
CORE EXAM Real Exam Questions 2026 |
Complete Prep | A+ Version
• - Temperature fluctuation from HVAC
- Low humidity
- Dust
- Low light or high variation in light exposure
- Drafts
- Exposure to spills or cleaning compounds . Answer: Name 4 stress
factors that can harm plants growing indoors
• Light, air, moisture, and nutrients . Answer: What are the basic needs
of plants?
• - Temperature
- light
- relative humidity
- soil moisture
- availability of essential minerals . Answer: Name 4 environmental
factors that effect plant growth
• - Lack of root space
- Lack of rainfall
,- Insufficient irrigation . Answer: What abiotic factors may lead to
drought stress?
• 55-90 degrees . Answer: What is the ideal temperature range for indoor
plants?
• Low temperatures slow growth and chilling injuries. High temperatures
result in wilting and use of food stores. Temperature fluctuations cause
shock. . Answer: What do drastic temperatures do to plants?
• Measures of accumulated heat. Degree days help predict the
development timelines of insects, weeds, or diseases. . Answer: What
are degree days?
• More light = more growth
More growth = more water required . Answer: What is the relationship
between how much light a plant receives and the amount of water that it
needs?
• Wilting, decreased food production, browning of leaf margins,
scorched leaves, and dull foliage . Answer: What negatives are caused
by low humidity?
• To allow roots to take in oxygen and give off carbon dioxide . Answer:
Why do plants need pore spaces in growing media?
, • Macronutrients are chemical elements that plants need in relatively
large amounts. Micronutrients are elements needed in smaller amounts.
Both are necessary for good nutrition and health . Answer: What is the
difference between macro- and micronutrients?
• To supplement mineral nutrients needed for growth . Answer: Why do
plants need fertilizers?
• - Crust of fertilizer on the surface of the soil
- Yellowing/wilting leaves
- Browing of leaf tips/margins
- Leaf spot
- Browned/blackened/limp roots
- Leaf drop
- Very slow growth or little growth
- Death of plant tissue . Answer: What are the signs of overfertilization?
• Moisture, support, nutrients, and aeration . Answer: What vital
elements should a plant's growing medium provide?
• Too much fertilizer in plant tissue or in the soil. To prevent it, measure
properly and don't overapply. Don't use chemically softened water. .
Answer: What is soluble salt buildup and how is it prevented?
CORE EXAM Real Exam Questions 2026 |
Complete Prep | A+ Version
• - Temperature fluctuation from HVAC
- Low humidity
- Dust
- Low light or high variation in light exposure
- Drafts
- Exposure to spills or cleaning compounds . Answer: Name 4 stress
factors that can harm plants growing indoors
• Light, air, moisture, and nutrients . Answer: What are the basic needs
of plants?
• - Temperature
- light
- relative humidity
- soil moisture
- availability of essential minerals . Answer: Name 4 environmental
factors that effect plant growth
• - Lack of root space
- Lack of rainfall
,- Insufficient irrigation . Answer: What abiotic factors may lead to
drought stress?
• 55-90 degrees . Answer: What is the ideal temperature range for indoor
plants?
• Low temperatures slow growth and chilling injuries. High temperatures
result in wilting and use of food stores. Temperature fluctuations cause
shock. . Answer: What do drastic temperatures do to plants?
• Measures of accumulated heat. Degree days help predict the
development timelines of insects, weeds, or diseases. . Answer: What
are degree days?
• More light = more growth
More growth = more water required . Answer: What is the relationship
between how much light a plant receives and the amount of water that it
needs?
• Wilting, decreased food production, browning of leaf margins,
scorched leaves, and dull foliage . Answer: What negatives are caused
by low humidity?
• To allow roots to take in oxygen and give off carbon dioxide . Answer:
Why do plants need pore spaces in growing media?
, • Macronutrients are chemical elements that plants need in relatively
large amounts. Micronutrients are elements needed in smaller amounts.
Both are necessary for good nutrition and health . Answer: What is the
difference between macro- and micronutrients?
• To supplement mineral nutrients needed for growth . Answer: Why do
plants need fertilizers?
• - Crust of fertilizer on the surface of the soil
- Yellowing/wilting leaves
- Browing of leaf tips/margins
- Leaf spot
- Browned/blackened/limp roots
- Leaf drop
- Very slow growth or little growth
- Death of plant tissue . Answer: What are the signs of overfertilization?
• Moisture, support, nutrients, and aeration . Answer: What vital
elements should a plant's growing medium provide?
• Too much fertilizer in plant tissue or in the soil. To prevent it, measure
properly and don't overapply. Don't use chemically softened water. .
Answer: What is soluble salt buildup and how is it prevented?
