Pest of Rice- Rice stem borer Pest of Sugarcane - Chilo infuscatellus snellen

1. Pest of rice
&
Pest of sugarcane
Subtitle

2. PEST
A pest is any animal or plant which has a harmful effect on humans, their
food or their living condition.

3. PEST OF RICE
RICE STEM BORER (TRYPORYZA INCERTULAS)
CLASSIFICATION
class – Insecta
order – lepidoptera
family – pyraustidae
genus - Tryporyza
species - incertulas
COMMON NAME- Rice stem borer, yellow stem borer.

4. RICE STEM BORER
DISTRIBUTION
Andhra Pradesh, Orissa, Tamil nadu and Bengal.
FOOD PLANTS
feed paddy crop
GENERAL APPEARANCE
size- 15-20mm in length and has a wing expanse of 24-
45mm.
female moth is bigger than the male and has distinct
black spot on each of the bright yellowish forewing. The male moth has pale
whitish yellow coloured fore wing without any spot.

5. General appearance

6. RICE STEM BORER
PERIOD OF OCCURRENCE
• In northern regions of India, this pest is active from April to October and
hibernates from November to march as a full grown larva in rice stubble.
Pupation starts in march and the emergence of moth begin in April.
EXTENT OF YIELD LOSS- 30-95%
DAMAGE STAGE OF THE INSECT- caterpillar

9. NATURE OF DAMAGE

11. CONTROL
• CULTURAL CONTROL
Destruction of weeds harbouring pests.
Pulling out infested rice plant
Flooding the field after harvest.
Stubble left after harvest should be ploughed up and burn or submerged
in water immediately after harvest.
Crop rotation.

12. CONTROL
• CHEMICAL CONTROL
Application of BHC and DDT at 0.1% in spray or 1% in dust
Spray of 0.125% taxaphone
Socking the seed with folidol
Spray of fenthion, fenitrothion, quinalphos, phosphamidon, monocrotophos
and granules of lindane and carbaryl lindane mixture are effective in
checking the destruction from this pest.

13. CONTROL
• MECHANICAL CONTROL
collection and destruction of egg masses from nursery plants.
Setting up of light traps to trap and destroy the moth
Destruction of seedling with ‘dead hearts’ while planting.

14. PEST OF SUGARCANE
CHILO INFUSCATELLUS SNELLEN
CLASSIFICATION
Class Insecta
Order Lepidoptera
Family Crambidae
Genus chilo
Species infuscatellus
COMMON NAME- Early shoot borer, Sugarcane shoot borer.

15. DISTRIBUTION
India, Burma, Talwan, Pakistan, Philippines.
FOOD PLANTS
sugarcane is the main host of this insect but it is also found
feeding on bajra, maize, sarkanda and other grasses.

16. GENERAL APPEARANCE
Straw coloured forewings and hindwings are white in colour with apical
light buff
Moth is about 30-40mm in length with expanse.

17. LIFE HISTORY

18. DAMAGE

19. SYMPTOMS
• Dead heart shows in 1-3 months old crop, which can be easily pulled out.
• Caterpillar bores into the central shoot and feeds on the internal tissue
cause dead heart.
• Rotten portion of the straw coloured shoot emits an offensive odour
• A number of bore holes at the base of the shoot just above the ground
level.

20. CONTROL METHOD
• CULTURAL METHOD
1. Early planting during December-January escapes the early shoot borer
incidence.
2. Use resistant varieties like co312, co421, co661, co917 and co853.
• MECHANICAL METHOD
1. Timely disposal of infested plants.
2. Pulling at the dead hearts and destroying them.
• BIOLOGICAL METHOD
1. Apply granulosis virus 1.5*135 IBS/ha
2. Install pheromone traps
3. Release 125 gravid females of sturmiopsis inferens a tachinid parasite
per ac.

21. THANK YOU