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Crop Protection with vernacular Names

Crop Protection with vernacular Names
6
Aug

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
Aug

Brown spot

Causal organism: Helminthosporium oryzae

Symptoms:

1. Many dark brown elliptical spots on leaves; infects coleoptiles of seedling and causes blightining; infected kernel shriveled.

Management

1. Seed treatment before sowing with carbandazim (2.5g/kg).

2. Treatment with fungicide like mancozeb 0.25% or Adinophos 0.1%.

File Courtesy: 
IGKV,Raipur
Photo Courtesy: 
IGKV,Raipur
6
Aug

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
Aug

Sheath rot

Causal organism- Magnoporthe Salvinii

Symptom:

1. Disease infect rice after tillering.

2. The initial infection occurs on the stem in the leaf sheath and towards maturity penetrating in to the culm often causing lodging.

3. Below sheath small dark brown spots formed which have no shape. Because of this diseases panicle do not emerges

4. If the panicle emerges grains do not fill and cause yield loss.

6
Aug

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
Aug

Bacterial leaf blight (BLB)

Symptom of Bacterial leaf blight

1. ‘Kresk’ occurs in early stage (plant withers and dries up), in later stage blightining starts from the tip of the leaves to the base, straw turned yellow, partially filled grains.

Management

1. Use balanced fertilizer dose.

2. Drain out excess of water.

3. Use resistant varities like Sawa masuri, Bambleshwari.

File Courtesy: 
IGKV,Raipur
Photo Courtesy: 
IGKV,Raipur
6
Aug

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
Aug

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
Aug

Rice blast

Local name: Causal organism: magnaporthe grisea

1. This diseases affects the crop at all the crop stages viz., nursery, tillering and flowering. The yield loss ranges from 36-50 % depending upon the variety and environment condition.

2. Typical leaf lesion are spindle shaped, usually with redish yellow margin; grey in the centre.

File Courtesy: 
IGKV,Raipur
6
Aug

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
Aug

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
Aug

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
4
Aug

Rice yellow dwarf

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
Dr.Krishnaveni (DRR)
4
Aug

Rice tungro virus

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
Dr.Krishna Veni (DRR)
4
Aug

Bacterial leaf streak

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
http://www.sciencephotolibrary.com/images/download_lo_res.html?id=670017710
4
Aug

control measures of the Bacterial leaf blight

1. Spraying with copper fungicides (Blitox 0.3%) alternately with Streptocycycline (250 ppm).

2. Application of moderate dose of nitrogenous fertilizer (80 kg/ha) and use of wider spacing (30 x 15 cm) .

3. Growing resistant varieties to the disease .

File Courtesy: 
ICAR NEH, Umiam
4
Aug

Bacterial leaf blight

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
Dr.Krishna Veni (DRR)
4
Aug

Grain discolouration

1. Discoluration of rice grains. is becoming a major problem in certain varieties of rice both in upland and lowland conditions. It redUces the germination, causes decay of seedlings, produces chaffy grains and lowers the consumption quality of the grains.
2. The disorder may be limited to individual grains, but in severe cases almost the entire panicle including the rachis becomes discoloured.

File Courtesy: 
ICAR NEH, Umiam
4
Aug

Bunt

1. In this disease, a few grains in an ear are affected, the infection being either partly or wholly. The symptoms appear first as minute black Streaks bursting through the glumes at the ripening.
2. If the infected grain is crushed between the fmgers, a black powdery mass of spores emerges. The causal organism of the disease is Tilletia barclayana.
3. The is that develops inside the grain is filled with spores, which are spherical and dark, with a spiny epispore. The spore germinates and produces sporadic. These produce secondary sporadics in large numbers.

File Courtesy: 
ICAR NEH, Umiam
4
Aug

Narrow brown leaf spot

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
http://www.insectimages.org/browse/detail.cfm?imgnum=5390516
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