Across
- 2. distorting and puffing of a leaf due to the unequal development of its sides
- 5. distinguishing diseases by their characteristic, symptoms, and signs
- 6. are most familiar because they also cause animals and humans diseases. They are transmitted by vectors and they only survive in living cells
- 8. for disease development to occur, plant, pathogen, and favorable environment must be present
- 9. sudden discoloration and death of tissue over certain portions of the plants
- 10. a group of tiny organisms whose size is between that of the viruses and bacteria. They are transmitted in nature by leafhoppers
Down
- 1. deals with the study of nature, causes, and control of plant diseases
- 3. smaller than viruses and they are stable naked RNA that infects plants
- 4. round, slender, threadlike worms that mostly live in the soil and feed in or on plant roots, stems, bulbs, and leaves
- 7. occurs when a pathogen successfully enters a plant and grows, reproduces, and spreads within the plant