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Paddy Spiny Beetle
Paddy Pests
Spiny Beetle
Symptoms
- Adults feed on chlorophyll by scraping and causing white parallel streaks.
- Grubs tunnel through leaf tissues and make blisters near leaf tips.
- Whitish and membranous leaves
Identification
- Egg: Eggs are laid inside minute slits on the tender leaves generally toward the tip
- Crub: The grub is whitish yellow and flattened. It feeds inside the leaf tissue by mining. It pupates inside
- Adult: The adult beetle is somewhat square shaped about 1/6 to 1/8” in length and width. Dark blue or blackish in colour with spines all over the body.
Management
- ETL: 2 adults /hill
- Avoid over-fertilizing the rice field. In situations of high hispa incidence, top-dressing of nitrogen fertilizer may be skipped.
- Sustained collection of adults by sweep net and destruction.
- Spray/broadcast/dust any one of the following insecticides per acre based on ETL
- Spray any following insecticides
|
Insecticides |
Dosage |
|---|---|
|
8 ml/10lit |
|
|
2 ml/10lit |
|
|
2 g/10lit |
- Adults feed on chlorophyll by scraping and causing white parallel streaks.
- Grubs tunnel through leaf tissues and make blisters near leaf tips.
- Whitish and membranous leaves
- Egg: Eggs are laid inside minute slits on the tender leaves generally toward the tip
- Crub: The grub is whitish yellow and flattened. It feeds inside the leaf tissue by mining. It pupates inside
- Adult: The adult beetle is somewhat square shaped about 1/6 to 1/8” in length and width. Dark blue or blackish in colour with spines all over the body.
- ETL: 2 adults /hill
- Avoid over-fertilizing the rice field. In situations of high hispa incidence, top-dressing of nitrogen fertilizer may be skipped.
- Sustained collection of adults by sweep net and destruction.
- Spray/broadcast/dust any one of the following insecticides per acre based on ETL
- Spray any following insecticides
|
Insecticides |
Dosage |
|---|---|
|
8 ml/10lit |
|
|
2 ml/10lit |
|
|
2 g/10lit |
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