| 1 | This old man is a leading authority on wheat diseases. | |
| 2 | They also provide pest control, catering and even child care. | |
| 3 | An unknown disease suddenly attacked the crops in this area. | |
| 4 | Patterns for the occurrence of disease and insect will also change with rises in temperature, he added. | |
| 5 | The second part covers the important pests and diseases of quarantine concern for the species in question. |