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Package of Practices
  • A compendium of state specific and location specific recommended package of practices are provided under this head. You may be interested to see that, thanks to our IP based customisation, that only your state (the state from where you are accessing RKMP) specific information is available.
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06
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

1. Spray cartap 50 WP @ 600 g ha-1 or monocrotophos 36 WSC @ 850 ml ha-1or chlorpyriphos 20 EC @ 1500 ml ha-1or quinalphos 25 EC @ 2000 ml ha-1. Spraying should be done only when there are 3 freshly damaged leaves per hill.

2. Severe infestation particularly to flag leaf affects grain filling resulting in yield loss.

06
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.

3. As a result the infested plant turns yellow and dies.

4. At later stages, crop dies and the patches are called "hopper burn". BPH also transmits "grassy stunt virus".

Management of WBPH

Seedling stage: 33 kg Carbofuron 3G/ 10 kg phorate 10G.

Tillering stage: 75 ml Emidicloprid/ 600 ml fipronil 5%.

Management of BPH

Tillering stage: 900 g Carboryl 50% / 850 ml monocrotophos 36%.

Booting stage: 1100 ml monocrotophos 36%/ 100 ml Emidicloprid 20%.

Panicle initiation stage: 1500 ml monocrotophos 36%/ 125 ml Emidicloprid.

06
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.

• If severe infestation is observed after 25 DAT spray monocrotophos 36 WSC @ 850 ml ha-1 or chlorpyriphos 20 EC @ 1500 ml ha-1.

 • High volume or low volume sprayers can be used to apply the insecticides.

06
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.

2. 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.

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

4. The central leaf whorl does not unfold, turns brownish and dries out although the lower leaves remain green and healthy. This condition is known as ‘dead heart’. Affected tillers dry out without bearing panicles.

Management of stem borer:

At seedling stage seedling: 33 kg Carbofuron 3G/ 10 kg phorate 10G.

At tillering stage: 25 kg cartap 4G/ 25 kg fipronil 0.3G.

Booting Stage: 1100 ml monocrotophos 36% / 2000 ml chlorpyriphos 20%.

Panicle emergence : 1500 ml monocrotophos 36% / 2500 ml chlorpyriphos 20%.

06
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.

Management of Rice Case Worm Tillering stage :

850 ml monocrotophos 36%/ 1500 ml chlorpyriphos 20%. Booting stage: 1100 ml monocrotophos 36%/ 800 ml fipronil 5%. Tillering Stage: 850 ml Endosulfan 35%/ 850 ml monocrotophos 36%.

06
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:

1. Several natural enemies are recorded: a braconid wasp Aphidius sp. and a mermithid nematode Mermis sp. are recorded parasites of nymphs and adults.

2. Coccinellids such as Menochilus sexmaculatus (Fabricius) and Harmonia octomaculata (Fabricius) feed on nymphs and adults.

06
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.

3. A hole is left on the grain at the point of puncture and around that hole a brownish spot develops causing discoloration of the panicles.

Management of Gindhi bug:

1. Dust Malathion or Carbaryl @ 30 kg of the formulation/ha 2. Spray monocrotophos 36 WSC @ 1500 ml ha-1 or endosulfan 35 EC @ 1500 ml ha-1 or carbaryl 50 WP @1500 g ha-1 or dust malathion or carbaryl @ 30 kg of the formulation ha-1.

03
Aug

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.
03
Aug

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.

03
Aug

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.

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