Agricultural Crop Disease Management - Category 1C - Iowa Commercial Pesticide Applicator Manual - Vocabulary Exam With Verified Answers Latest Update 2024/2025

Agricultural Crop Disease Management - Category 1C - Iowa Commercial Pesticide Applicator Manual - Vocabulary Exam With Verified Answers Latest Update 2024/2025 Plant Disease Correct Answer: Any abnormal plant growth. Symptoms Correct Answer: Visible effects of a plant disease on a host plant. Pathogen Correct Answer: The parasitic organism that causes a disease. Plant Disease Triangle Correct Answer: 1 - Susceptible Host Plant 2 - Pathogen 3 - Favorable Environment Host Correct Answer: Plant being invaded by pathogen and serving as food source. Favorable Environment Correct Answer: Environmental factors that allow the pathogen to invade the host plant. Environment Correct Answer: The surroundings and/ or conditions that the plants exist in. Vector Correct Answer: A virus transmitted by an insect. Stylet Correct Answer: A needlelike structure found on plant-parasitic nematodes. Disease Cycle Correct Answer: The chain of events involved in disease development. Inoculum Correct Answer: Any material capable of producing infection and causing disease. Dissemination of Inoculum Correct Answer: The spread or dispersal of a pathogen. Incubation Period Correct Answer: The period between infection and the first appearance of symptoms. Economic Injury Level Correct Answer: The density of a pest population when the cost of management equals the amount of crop lost by the pest. Economic Threshold Correct Answer: The density of a pest population that justifies a management measure to keep an increasing population from reaching the economic