|
Mite
| Symptoms |
|
| |
|
- Infested plants look pale and loss of chlorophyll on the leaves will be seen by a dirty brown colour.
Nature of damage:
- Both the adults and young ones remain in large numbers on the lower side and suck the juice. White patches can be seen as a result of desapping. Seedling in the nurseries and transplanted crop are affected.
|
|
| Panicle rice mite |
 |
| Spider-mites-in-rice |
| Top |
| |
Identification of pest |
|
|
 |
Scientific Name: Oligonychus oryzae
Minute globular eggs are laid singly on the leaves.
Nymphs on hatching have only three pairs of legs and after the first moult, the fourth pair develop.
Total life cycle will be completed in about 15 to 18 days. |
| Rice mite and eggs |
| Top |
| Management Strategies |
|
- Cultural controls include plowing stubble after harvesting crops and ensuring no re-growth of plant material for winter.
- Fallowing fields, rotation with an alternate crop.
- Cleaning machinery before using in an un-infested field
- Sampling 15 days after planting to catch mite populations at low levels, and avoidance of second-cropping.
- Systemic miticides will be the best option for chemical control.
- Effective acaricide – Spiromesifen at 72 g a.i/ha.
- Predatory mites may have the ability to suppress populations
|
 |
| Predatory-mite |
 |
| Spiromesifen |
| |
Top |
|
