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Pests

Pests
27
Jul

Brown planthopper (Tudtuda)

1. Pest Name - Brown planthopper.

2. Scientific Name - Nilparvata lugens.

3. Local Name - Tudtuda.

4. Pests characteristics - Sporadic in occurrence.

5. Infestation intensities - Severe.

6. Crop Growth stages - Maximum tillering and reproductive. stage.

File Courtesy: 
RARS, Karjat
Photo Courtesy: 
Mr. Y. Kondal Rao (DRR)
27
Jul

Control Measures for Rice Gall midge

Chemical Control Measures for Gall midge: Soil application of phorate 10G @ 10 Kg Or quinalphos 5G @ 15 Kg Or ethoprophos 5G @ 15 Kg/ha. at 10 and 30 days after transplanting based on 5 per cent silver shoots /sq. m ETL.

Biological Control Measures for Gall midge: Growing tolerant or resistant varieties like Shakti, Kakatia, Surekha, Falguna, Vikram, Vaibhav, Smita, Tata etc.

File Courtesy: 
RARS, Karjat
27
Jul

Nature of damage for Gall midge (Nal and Gad mashi )

1. A newly hatched maggot reach and feed on shoot apex resulting in the formation of a long tubular structure known as “gall” or “silver shoot”.

2. It is a hollow whitish to pale green cylindrical tube bearing at its tip a green reduced flag leaf. Infested tillers do not bear panicles.

3. Maximum infestation occurs during tillering stage. Once panicle initiation occurs larvae no longer cause damage.

4. Late planted crop is severely damaged. Early rains and subsequent dry periods result in higher infestation.

File Courtesy: 
RARS, Karjat
Photo Courtesy: 
RARS, Karjat
27
Jul

Gall midge (Nal and Gad mashi )

1. Pest Name - Gall midge .

2. Scientific Name - Orseolia oryzae.

3. Local Name - Nal and Gad mashi.

4. Pest characteristics - The pest occurs only during kharif season and requires above 95 per cent RH.

5. Infestation intensities - Moderate.

6. Crop Growth stage - Seedling and tillering stage

File Courtesy: 
RARS, Karjat
Photo Courtesy: 
RARS, Karjat
27
Jul

Gall Midge ( Nal and Gad mashi )

 

1. Pest Name - Gall midge.
2. Scientific Name - Orseolia oryzae.
3. Local Name - Nal and Gad mashi.
4. Pest characteristics - The pest occurs only during kharif season and requires above 95 per cent RH.
5. Infestation intensities - Moderate.
6. Crop Growth stage - Seedling and tillering stage.

File Courtesy: 
RARS, Karjat
Photo Courtesy: 
RARS, Karjat
27
Jul

Control Measures for Rice Stem Borer

 Chemical   Control Measures  in Nursery  of stem borer:

File Courtesy: 
RARS, Karjat
Photo Courtesy: 
http://www.indiamart.com/gujaratpesticides/plants-pesticides.html
27
Jul

Nature of damage of Yellow stem borer

 

1. It is a major pest of rice and is very serious in double cropped areas.

2. The caterpillar bores into the stem and feeds internally causing death of the central shoot. This is called “dead –heart.”

File Courtesy: 
RARS, Karjat
Photo Courtesy: 
RARS, Karjat
27
Jul

Yellow stem borer (Khod kida)

 

1. Pest Name - Yellow stem borer.

2. Scientific Name - Scirpophaga incertulas.

3. Local Name - Khod kida.

4. Pests characteristics - Regular in occurrence throughout the year.

5. Infestation intensities - Low to severe upto 80.00 per cent.

6. Crop Growth stages - All stages of crop growth i.e. seedling, tillering and boot leaf stage.

File Courtesy: 
RARS, Karjat
Photo Courtesy: 
RARS, Karjat
20
Jul

Symptoms and Nature of damage of Rice Hispa

Symptom of attack Rice hispa:

The mining of the grubs will be clearly seen on the leaves. White parallel line will be clear on the leaves.

Nature of damage of Rice hispa:

The grub mines into the leaf blade and feed on the green tissue between the veins. Adults also feed in the green tissue; they scrape the green matter of the tender leaves.

File Courtesy: 
ZARS, Mandya
Photo Courtesy: 
CRRI
20
Jul

Control of Rice Hispa

Spray triazophos 40 EC @ 400 ml ha-1 or phosalone 35 EC @ 850 ml ha-1 or chlorpyriphos 20 EC @ 1500 ml ha-1or quinalphos 25 EC @ 1200 ml ha-1 or monocrotophos 36 WSC @ 850 ml ha-1or ethofenprox 10 EC @ 450 ml ha-1or fipronil 5 SC @ 600 ml ha-1or apply carbofuran 3G @ 25 kg ha-1.

File Courtesy: 
ZARS, Mandya
20
Jul

Life stages of Rice hispa

Egg: Eggs are laid inside minute slits on the tender leaves generally toward the tip.

Grub: 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.

File Courtesy: 
ZARS, Mandya
20
Jul

Rice Hispa

Order: Coleoptera

Family: Chrysomelidae

Scientific name : Dicladispa armigera

Local name :

File Courtesy: 
ZARS, Mandya
20
Jul

Control of Grass hoppers

1. Expose the eggs to be picked up by birds after ploughing and trim the bunds. Bio-control agents such as Cacallus spp., Barycomus spp. and Seelio spp., which are egg parasites, should be encouraged.

2. Dusting the crop with 5-10% BHC (or) methyl parathion 2% @ 25-30 kg/ha, fenitrothion (or) malathion 5% @ 20 kg/ha.

3. Spraying nuvan 100 EC @ 200 ml/ha (or) malathion 50 EC @ 2.5 lit/ha.

File Courtesy: 
ZARS, Mandya
20
Jul

Life stages of Grass hoppers

1. H. banian has only one brood in a year. O. nitidula breeds throughout the year. Egg: It lays eggs in the wet sandy soil during October to November at a depth of about 2”especially in the side of bunds.

2. The eggs are laid in batches of 30-40, hatch only in June to July on receipt of the monsoon rains. Eggs are yellowish and covered with gummy substrate that hardens into a waterproof coating.

3. Nymphs: The nymphs feed on the grasses or paddy.

File Courtesy: 
ZARS, Mandya
20
Jul

Symptoms and Nature of damage of Grass hoppers

Symptom of attack of Grass hoppers:

The nymphs and adults nibble leaves and also earheads in the early stages.

Nature of damage of Grass hoppers:

Both the adults and nymphs feed on the leaf and in severe cases the entire leaf may be eaten away.

File Courtesy: 
ZARS, Mandya
20
Jul

Grass Hoppers

Order: Orthoptera

Family: Acrididae

Scientific name : Hieroglyphus banian (Large grasshopper)

Scientific name : Oxya nitidula (Small grasshopper)

Local name :

File Courtesy: 
ZARS, Mandya
20
Jul

Symptoms and Nature of damage of Rice Leaf Folder

Symptom of attack of Leaf folder :

Leaves folded longitudinally or transversely with silk and scrapped patches in such places.

Nature of damage of Leaf folder:

1. The larvae feed by scraping the green mesophyll resulting in linear pale white stripe damage. Starting with the late second instar, when larvae regularly roll up leaves they become solitary.

File Courtesy: 
ZARS, Mandya
Photo Courtesy: 
CRRI
20
Jul

Control of Leaf Folder

1. Early planting may help to avoid greater degrees of leaf damage.

2. Wider spacing and low usage of nitrogenous fertilizers decreases leaf damage.

3. Spray monocrotophos 36 WSC @ 850 ml ha-1or chlorpyriphos 20 EC @ 1500 ml ha-1or cartap 50 WP @ 600 g ha-1 or quinalphos 25 EC @ 1200 ml ha-1or acephate 50 WP @ 700 g ha-1or or fipronil 5 SC @ 600 ml ha-1

File Courtesy: 
ZARS, Mandya
20
Jul

Life Stages of Leaf Folder

Egg: Flat oval yellowish eggs laid singly or in pairs on the undersurface of tender leaves.

Larva: Larva is yellowish green in colour and translucent about 16-20 mm long.

Pupa: It pupates inside the fold.

Adult: Adult is small yellow coloured moth with dark wavy lines on both pairs of wings.

File Courtesy: 
ZARS, Mandya
20
Jul

Leaf Folder

Order: Lepidoptera

Family: Pyralidae

Scientific name : Cnaphalocrocis medinalis

Local name:

File Courtesy: 
ZARS, Mandya
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