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Pests

Pests
6
ऑगस्ट

Rice root weevil

This weevil is a localized pest in the rice area around Rajpura. However this pest has also been observed in some other areas in the state.Its white ,legless grubsfeed on roots in the soil from July to September.The attacked plants turn yellow , stunted and produce only a few tillers .

Control : Apply any of the following granular pesticides in standing water: 3kg of Thimet/Foratox 10G(phorate) per acre

File Courtesy: 
Package of practices for crops of Punjab- PAU Ludhiana
2
Jan

நெற்பயிரில் இலைச் சுருட்டுப் புழுவை தடுக்கும் முறைகள்

 வேளாண்மை உதவி இயக்குநர் ராஜசேகர் விவசாயிகளுக்கு வெளியிட்டுள்ள அறிக்கையில் கூறி இருப்பதாவது நெல்லை மாவட்டம் கடையம் வட்டாரத்தில் பரவலாக நடவு செய்யப்பட்டுள்ள நெற்பயிரில் இலைச்சுருட்டுப்புழுக்களின் தாக்குதல் அதிகமாக காணப்படும். பெத்தான்பிள்ளைகுடியிருப்பு, சம்பன்குளம், ஆம்பூர் பகுதிகளில் சாகுபடி செய்துள்ள சாவித்திரி நெல் பயிரில் இலைசுருட்டுப்புழு தாக்குதல் அதிகம் காணப்படுகிறது.
இப்பூச்சிகள் பெரும்பாலும் இரவு நேரங்களில் காணப்படுகிறது. மழை குறைவாகவும், மேகமூட்டமாக இருக்கும் சூழலில் இவற்றின் தாக்குதல் அதிகமாக இருக்கும். தாய் அந்துப் பூச்சிகள் வெளிரிய பழுப்பு நிறத்தில் பளபளக்கும் மஞ்சள் கலந்த பழுப்பு நிற இறக்கையுடன் காணப்படும்.
வயல்கள் மற்றும் வரப்புகளில் உள்ள புற்களை நீக்கி வயலைச் சுத்தமாக வைத்திட வேண்டும். அதிகமாக தழைச்சத்து அதாவது யூரியா போட்ட வயல்கள், குருனை மருந்தான போரேட், கார்போபியூரான் போடப்பட்ட வயல்களில் பாதிப்பு அதிகமாக காணப்படும். நிழல் உள்ள இடங்களில் மற்றும் பயிர் நெருக்கமாக அதிக தழைச்சத்து பெற்று வளமாக இருக்கும் இடங்களில் முதலில் தாக்குதல் தென்படும் தழைச்சத்து ஒரு ஏக்கருக்கு 25 கிலோவுடன் 35 கிலோ பொட்டாஷ் உரத்தை இரு தடவையாக பிரித்து இடவேண்டம். மேலும் ஒரு ஏக்கருக்கு டிரைக்கோ கிரம்மா கைலோனிஸ் ஓட்டுண்ணியை 5சிசி என்ற அளவில் வாரம் ஒரு முறை வயலில் உலவ விட்டால் இப்பூச்சி தாக்குதலை கட்டுப்படுத்தலாம்.
பூச்சி மருந்தை காலை அல்லது மாலை வேளைகளில் வயலில் நீரை நன்கு வடித்துவிட்டு ஒரே மருந்தை திரும்ப திரும்ப தெளிக்காமல் மருந்துகளை சுழற்சி முறையில் அடித்து பூச்சிகளை தடுக்கலாம். இவ்வாறு அவர் தெரிவித்துள்ளார்.
Source: 
http://www.dinamalar.com/News_Detail.asp?Id=618316 (as on Jan 2, 2013)

For more information in English- Click Here 


1
नवेंबर

Rice Hispa

Rice Hispa

Symptoms of damage:

1. The adult beetles feed on the epidermal tissue of the leaves and the grubs mine the leaf tissue and pupate there.

2. The beetles scrape the chlorophyll between the veins of the lamina resulting in whitish parallel streaks. Later, owing to indiscriminate feeding even on leaf veins, white blotches appear on leaves.

3. In severe epidemics leaves dry up and the crop presents a scorched appearance.

File Courtesy: 
DRD, Patna
Photo Courtesy: 
CRRI
1
नवेंबर

Brown & Green Hopper

Brown & Green Hopper

Symptoms of damage:

1. The leafhoppers attack all the stages of the plant. Both adults and nymphs cause direct damage by sucking plant sap leading to stunted growth and reduced tillering.

2. At high population levels their feeding results in the drying of the plants and the infested paddy fields appear blighted. Infestation at the time of panicle emergence affects grain formation.

File Courtesy: 
DRD, Patna
Photo Courtesy: 
Dr. Chitra Shanker(DRR)
1
नवेंबर

Gallmidge Fly (Sarha insects)

Gallmidge Fly (Sarha insects)

Symptoms of Damage:

1. The chief stage of Gall midge which causes damage is the maggot. The maggot feeds on the growing tip and suppresses the leaf primordial differentiation.

2. This in turn induces the development of radial ridges from the innermost leaf primordium followed by an elongation of the leaf sheath.

File Courtesy: 
DRD, Patna
Photo Courtesy: 
Mr. Y. Kondal Rao (DRR)
1
नवेंबर

Rice Gundhi Bug

Rice Gundhi Bug

Symptoms of damage:

1. The adults and nymphs suck the juice from the developing grains in the early stage of grain formation.

2. Young succulent leaves and shoots are also attacked before the grain formation stage. Infestation is characterised by the presence of some empty or ill-formed grains in the panicles.

File Courtesy: 
DRD, Patna
Photo Courtesy: 
CRRI
1
नवेंबर

Juice sucking insects

Juice sucking insects

Symptoms of damage:

1. Both the nymphs and adults suck the sap from leaves. As a result of pest attack, initially yellowish streaks appear on the leaves.

2. Later, the leaves curl longitudinally from the margins inwards leading to sharply pointed leaf tips resembling that of needles, which finally wither.

File Courtesy: 
DRD, Patna
Photo Courtesy: 
CRRI
1
नवेंबर

Stem borer

Stem borer 

Symptoms of damage:

1. The larvae of the borers enter the tiller, feed, grow and cause the characteristic symptoms of ‘dead hearts’ or ‘white ears’ depending on the crop stage.

2. At tillering stage, the feeding frequently results in severing the apical parts of the plant from the base.

File Courtesy: 
BAU, Ranchi
Photo Courtesy: 
Mr. Y. Kondal Rao (DRR)
6
ऑगस्ट

Army worm

 

Local name:

Nature Of Damage of Armyworm:

1. Damage is caused by larvae feeding on leaves from edges, leaving only the midrib and stems.

2. In severe infestation, entire seed beds and fields are destroyed and appears r as if it has been grazed by animals.

Control of Armyworm:

File Courtesy: 
IGKV, Raipur
Photo Courtesy: 
Mr. Y. Kondal Rao (DRR)
6
ऑगस्ट

Rice hispa

 

Local name :

Symptoms for damage of Rice Hispa:

1. Damage is caused by both grubs and adults. Grubs feed by tunneling lower and upper epidermis, resulting in regular translucent white patches.

2. Adults scrap the surface of leaf blade often leaving only the lower epidermis.

3. Damaged plant parts appear as white streaks parallel to mid rib.

Control of Rice Hispa:

File Courtesy: 
IGKV, Raipur
Photo Courtesy: 
CRRI
6
ऑगस्ट

Leaf Roller

 

Local name :

Nature and symptoms for damage of leaf folder:

1. Larvae infest the young leaves.

2. They feed on leaf tissue and as they become older, fold the leaf to form a tube.

3. During severe infestation, leaf margins dry completely.

Control of Leaf Folder

File Courtesy: 
IGKV, Raipur
Photo Courtesy: 
Mr. Y. Kondal Rao (DRR)
6
ऑगस्ट

BPH and WBPH

 

Local name: Bhura mahu

Nature of Damage of BPH and WBPH :

1. Nymphs and adults damage the plants by sucking the sap and by plugging xylem and phloem with their feeding.

2. Sheath and pieces of tissues are pushed into these vessels during exploratory feeding and affects early stage of plant growth, reduces height and general vigour.

File Courtesy: 
IGKV, Raipur
Photo Courtesy: 
Mr. Y. Kondal Rao (DRR)
6
ऑगस्ट

Whorl maggot

 Nature of Damage of Whorl maggot :

1. Yellow spots, transparent streaks and pin holes are the other symptoms found on leaves. Neonate maggots feed on the unopened central leaves.

2. Under severe infestation many broken or bent leaves willappear resulting in poor growth and reduced tillering.

Management of Whorl maggot:

• Application of carbofuron granules in the nursery 5-7 days before pulling of seedlings will protect the crop until 20DAT.

File Courtesy: 
IGKV, Raipur
6
ऑगस्ट

Rice Stem Borer

 

Local name: Tanachedak  

Nature of Damage of Stem Borer :

1. Caterpillars bore into stem and feed internally causing death of central shoot"dead hearts" in vegetative stage and "white earhead" at milky stage respectively.

File Courtesy: 
IGKV, Raipur
Photo Courtesy: 
CRRI
6
ऑगस्ट

Case worm

 

Local name : Chitri.

 Nature of damage of Case worm:

1. Larvae cut the leaf tips and roll by spinning both margins to make tubular case.

2. They live inside the tube, feed on leaves, float over the water to move from plant to plant and I defoliate rice plant before maximum tillering.

3. During heavy damage, leaves are skeletonised and appear whitish in colour.

File Courtesy: 
IGKV, Raipur
Photo Courtesy: 
Mr. Y. Kondal Rao (DRR)
6
ऑगस्ट

Rice Root aphid

 

Local name :

Nature of damage:

1. Nymphs and adults suck the sap from the tender roots.

2. In heavy infestation seedlings' growth is stunted, become pale yellow in colour and do not flower.

3. The infestation starts in vegetative stage 25 -30 days after sowing and continues till ripening.

Management of Rice Root aphid:

File Courtesy: 
IGKV, Raipur
Photo Courtesy: 
Mr. Y. Kondal Rao (DRR)
6
ऑगस्ट

Gundhi bug and Sucking bug

 

Local name- Gundhi bug.

Nature of damage:

1. The adults and nymphs suck the juice from the developing grains in the early stage of grain formation.

2. Young succulent leaves and shoots are also attacked before the grain formation stage. Infestation is characterised by the presence of some empty or ill-formed grains in the panicles.

File Courtesy: 
IGKV, Raipur
Photo Courtesy: 
CRRI
3
ऑगस्ट

Rice Slug caterpillar

1. Slug caterpillar (Parasa lepida) is a sporadic pest on rice. The larvae feed on the leaves leaving only the midrib.
2. It is recorded for the first time from NE region infesting rice crop during rainy season (Shylesha et al., 2006).

3. The other insect pests of minor economic importance include flea beetles (Chaetocnema basalis and Monolepta signata), stemfly, mole and field crickets, black bug, stink bug, blue beetles and black aphids.

File Courtesy: 
ICAR NEH, Umiam
3
ऑगस्ट

Rice skipper

1. Caterpillars of skipper (Pelopidas mathias) are yellowish greenwith four white dorsal stripes. 2. It has a large head and tapering body The caterpillars defoliate the plant. 3. The adult is a fast moving skipper.

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
http://www.indianaturewatch.net/displayimage.php?id=147697
3
ऑगस्ट

Rice horned caterpillar

1. Homed caterpillar (Melanitis leda ismene) IS a minor pest of rice. 2. Female adult is dark brown butterfly, which lays white eggs on rice leaves. 3. Caterpillars are green in colour. It feed’s on the leaves at night and remains stationary during daytim. 4. Pupation takes place on leaf. The insect generally infests the crop during vegetative phase mainly on lowland rice.

File Courtesy: 
ICAR NEH, Umiam
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