Plant Nutrition

4. produce spores or mycelia (threadlike structures) that cause disease
6. means physical objects such as traps, machines, and devices. Ex. plowing and tillage of the soil to control weeds or traps catching pests.
8. organisms that cause disease
10. a chemical that is used to control an organism living and growing where it is not wanted
11. caused by the environment or man-made conditions ex. Nutrient deficiencies, chemical damage
12. an organism living and growing where it is not wanted and is causing damage to plants, humans, structures, and other creatures

1. a particular abnormal condition that negatively affects the structure or function of all or part of an organism
2. disease caused by living organisms such as fungi, bacteria, nematodes
3. are poisonous to the pests, such as sprays, dusts, and baits
5. one celled organism that can cause diseases such as blight or soft rot
7. controlling pests with natural agents like predators that will eat the pest or parasites that will attack the pest
9. roundworms living in soil, water, or as parasites that cause harm to the plants by eating the stems,roots, or leaves