Certain plant life may require specific environmental conditions that can assist in the horticultural spraying such as temperature, wind conditions, weather and growth stage of the plant. Companies that may specialize in horticultural spraying may require certification from the regional and national government because there may be certain criteria to following when spraying is occurring. Farmers who may be concerned about pests or fungus growth on their crop may call upon a horticultural spraying company to assist them. Horticultural spraying may be the most important step in preparing a large quantity of plants for the market such as landscaper, nursery and department stores. Horticultural spraying may occur best when the environmental conditions are conducive to the overall plant life.