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Paddy Crop -Protection
Bio Gold
– Pure Sea weed Extract
– Contains Naturally
Occurring Hormones and
Nutrients
– Break dormancy, Higher
Germination and vigorous
seedling growth leading to
early etablishment.
– Leads to Better Production
and Product Quality
– Helps Plant overcome
Stress
– To be applied as Seed
Dressing or sprayed in
standing crop at 40-45 DASDosage
Seed Dressing - 1 gm per kg seed
Spraying - 150-200 gm per acre
Root-o-Max Gold
Root-o-Max Super Gold
– Balanced Mix of Sea weed
Extract, amino Acids, humic
acids, Micronutrients for
Rapid growth of plant
– Soil Conditioner that
enhances the soil structure
for better aeration, Enhance
the nutrient absorption
capacity of the plant and
leads to higher production of
superior quality.
– Provides the right mix of
nutrients for growth and
Productivity. Dosage- 4-6 Kg Per Acre
Picaso Gold
– Chelated mix of
Micronutrients
– Corrects the Nutrient
Deficiency in the plants,
thus ensuring healthy
growth and protection
against deficiency diseases.
– Aids the Plant in abiotic
Stress tolerance
– Better results can be
obtained with application
of Bio Gold
Dosage 250-300 ml per acre
Indomycorrhiza
Mycorrhiza denotes one or a combination
of Root Associated Fungi that form
Symbiotic relationship with the plant
roots, while the plant provides them with
Glucose, they act as extended arms of the
plant roots to help fetch Available Soil
Nutrients , especially Phosphorus for the
plant
Advantages to the farmer
– For Higher Fertiliser Use Efficiency, Soil
Conditioning, PH control
– Recognised as a fertiliser.
– Better long term conditioning of soil,
Saving of Fertiliser to the farmer
Dosage- 4 Kg per acre
Productivity enhancement
@150-200 ml /Acre
At Panicle Initation Stage
@1 Kg per acre
At 30-40- DAT, repeat at 65 DAT
Enhancing Spray Coverage and
Effectiveness
Silicone based superior
super spreader
Spreads spray solutions for
superior coverage and
penetration, thus ensuring
effectiveness of the
agrochemicals.
Ensures saving of
Agrochemicals, water and
Labour
Can be used for enhancing
Irrigation effectiveness @
150 ml per acreDosage- 1 ml per 3 Lit Water
Area and Yield of
Rice in Major States
State Area
(Mill. ha)
Area
(Mill. acre)
Yield
(Kg/ha)
Yield
(Kg/acre)
West Bengal 6.07 15.1 2514 1005.6
Uttar Pradesh 5.88 14.7 2120 848
Orissa 4.50 11.2 1589 635.6
Andhra Pradesh 3.83 9.5 2978 1191.2
Chhattisgarh 3.73 9.3 1374 549.6
Bihar 3.57 8.9 1480 592
Assam 2.53 6.3 1524 609.6
Punjab 2.49 6.22 3545 1418
Tamil Nadu 2.11 5.27 3263 1305.2
Madhya Pradesh 1.76 4.4 948 379.2
Punjab 2.8 7.0 4010
1604
Haryana 1.2 3.0 3008 1203.2
MAJOR WEEDS
INSECT PESTS
&
DISEASES OF RICE
Post Emergent Weed Management
Orion Gold
effectively controls grasses, sedges and broad leaf weeds
infesting rice crop
It has wide application window and can be used in early
post emergent segment
Recommendation for use
Nursery: 10-12 days of sowing for nursery rice
Transplanted Rice: Within 10-14 days of transplanted rice
when most of the weeds have already emerged and are of
3-4 leaf stage depending upon soil and climatic factors
Direct seeded rice: Optimum time of application is within
15-25 days of the sowing
Dosage Per Hectare
Crop Weeds Dosage/Hectare Waiting Period
(days)
a.i (g) Formulation (ml) Water (L)
Rice
(Nursery)
Echinocloacrusgalli,
Echinocloacolonum,
Ischaemumrugosum,
Cyperusdifformis,
Cyperus iria,
Fimbristylismilliacea,
Eclipta alba,
Ludwigiaparviflora,
Monochoriavaginalis,
Alternenthraphiloxeroides
,
Sphinocleazeylanica
20 200 300 Waiting period
has been
redundant as
period
between
sprayand
harvest
has been > 78
days
Rice
(Transplanted)
20 200 300
Rice
(Direct
seeded)
20 200 300
Method of Application
1. Remove water from rice field
2. Mix required dosage (80-120 ml per acre) with
adequate quantity of water
3. Use flat fan/ flood jet nozzle for spray and spray
uniformly over the targeted plants
4. Spray mist should cover the foliar parts of weeds at
application
5. Refill the field with water within 2-3 days of
application
6. Maintain standing water of 3-4 cm for a minimum of
10 days
Precautions
• Do not spray if the rains are expected
• Do not apply by sand mix technique
• Do not spray without draining out the water
from the field
• Do not tank mix with sulphur and copper
containing pesticides
Insect-Pests Management
Yellow Stem borer
Pink Borer
Leaf folder
Brown Plant Hopper
White Backed Plant Hopper
Green Leaf Hopper
Case worm
Gall Midge
Table: Paddy Insect-Pests E.T.L.
Name of the Insect Pests Economic threshold level
Brown plant hopper 5-10 hoppers/hill.
Green plant hopper 10-20 hoppers/hill.
White back plant hopper 10-20 hoppers/hill.
Rice Hispa 1-2 adults/hill.
Stem borer One egg mass/sq.mt. or 5% dead hearts.
Gundhi bug 1-2 bugs/hill.
Gall midge One silver shoot/sq.mt.
Armyworm One larvae/hills.
Grasshoppers One number/hill.
Thrips 10 thrips per leaf.
Whorl maggot 20% damaged hills.
Case worm 1-2 cases/hill.
Leaf folder One damaged leaf/hill.
YELLOW STEM BORER
Scirpophaga incertulas
(Pyralidae : lepidoptera)
•Occurs in all states of India.
•20-30 % yield loss by YSB
* Monophagous.
* Boro / Rabi and Kharif
paddy suffers more.
•Male & Female moth have
bright yellowish fore- wings.
• Female has a single dark
spot on
the center of fore wings
• Male has several brown
spots.
• Moths are nocturnal.
The eggs are laid in masses on
the upper half of leaf and
covered by light brown hair.
2-3 days
9-12 days 5-8 days
Egg mass
Damage:
• Eggs laid on leaf tip.
• Newly hatched larvae hang
down by
silken thread.
• Larvae enter the leaf sheath
& feed for
2-3 days.
• Bore into the stem,
5-10 cm above the
water level.
•It feeds on internal
tissues.
Damage Symptoms
(a) At vegetative stage:
•Dead Heart.
•No bearing of panicles.
(b) At panicle initiation stage:
• White ear heads
• Chaffy panicle (with unfilled
grains).
DEAD HEART WHITE EARHEAD
• Affected dead hearts/panicles can be easily
pulled out.
Pink stem borer (Sesamia inferens)
Pink stem borer is a serious pest in Kharif
crops.
Other hosts include Bajra, Wheat, Paddy
and Sugercane.
This is a minor pest of Paddy.
80-300 pearl like yellow eggs are laid in to
longitudinal rows in sheaths of bottom leaf.
25-30 mm full grown larva is pinkish in
colour.
Larva bores into
central shoots resulting
in drying up of growing
points.
In severe damage
stem breaks
MANAGEMENT
Cultural:
1. Destroy the stubbles after harvest.
2. Plant the crop at about same time as of your
neighborhood farmers.
3. Apply judicious dose of nitrogenous
fertilizer in 3 split doses.
Chemical Control :
For nursery:
•Kranti 4G @ 1.0 kg for 500 sq.m nursery at 8-10 days
before up-rooting
For main field:
•KRANTI 4G @ 7.5 kg/acre at 20-30 DAT
• Kranti 4G @ 10 kg./acre (For Basmati)
• Kranti 50 SP- Spray @ 250 g / acre at 50 - 60 DAT
Other Controls
300-350 ml
per acre
300-350
ml per
acre
300-350
ml per
acre
100 gm
per acre
70-80 ml
per acre
Proper Application in standing water
LEAF FOLDER
Cnaphalocrocis medinalis
(Pyralidae : Lepidoptera)
Full grown larvae are greenish yellow in
colour.
Larvae infest on young leaves.
They scrap on green leaf tissue as the result
leaves turn whitish.
As the result 10 % yield loss may occurred.
Small brownish- orange moth with two and
half zig - zag lines on fore-wings.
Can be seen flying in the field.
The adult females lay eggs on the leaf blade
near
mid-rib.
DAMAGE SYMPTOMS
 The larva folds the leaf by bringing together
the margins of individual or group of leaves.
Larvae scrap the green matter (chlorophyll) from
within the leaf rolls.
Affected leaves develop white
patches & dry-up affecting the crop
growth.
Critical Stage: Panicle initiation
stage leads to serious grain yield
Loss but can appear any time during
the crop period.
MANAGEMENT
•Kranti 50 SP @ 250 g / acre
Or
•Baton -4.9% CS@ 250-300 ml / acre
Note: Application of Kranti 4G also
reduces leaf folder incidence.
BROWN PLANT HOPPER (BPH)
Nilaparvata lugens
(Delphacidae : Homoptera)
•Major pest in all rice growing areas of India.
•Long winged adults:
-Lays eggs inside the mid-ribs and leaf
sheath.
-Invades the fields.
•Nymphs and adults are wedge shaped.
•The egg period is 7-9 days.
•The nymphs passes through 5 instars in 12-13 days.
•The life cycle is completed in 22 to 26 days.
•The 1st instar nymphs are white, whereas the later
instar are brown.
•The pest has intercontinental migration.
Symptoms and damage :
•Both nymphs and adults suck sap from the
basal portion of the plants.
•The affected plants show yellowing of leaves,
in a circular patch known as “Hopper burn”
•Later the entire crop dies up.
•The affected stems become soft and unfit for straw.
•Economic Threshold level is 5-10 hopper/hill.
•B.P.H. can cause 10 -70 %yield loss in paddy crop.
•Insects also release toxins causing viral diseases like:
“Grassy stunt”, “Ragged stunt” & “Wilted stunt”.
WHITE BACKED PLANTHOPPER
Sogatella furcifera
(Delphacidae : Homoptera)
* Nymphs are white to dark gray or black and
white in colour.
* Causes damage by sucking plant sap.
* Adults have white strip on their back.
E.T.L. is 10-20 hopper/hill
•Heavy infestation may
cause outer leaves of a hill to
show burn symptom, and can
cause 10-70 % yield loss
MANAGEMENT FOR
BPH & WBPH
Cultural Practices:
•Judicious use of nitrogenous
fertilizer.
Chemical Control:
Prophylactic Control-
Twins @ 60 gm per acre at 60 DAS
Direct Control-
Blunt 25%SC @ 320 ml/acre
Lehar- Fenbucarb50 % EC- 300-500
ml/acre
At ETL* of insect
GREEN LEAF HOPPER (GLH)
Nephotettix virescens
(Cicadellidae : Homoptera)
• A wide spread pest.
•The nymphs and adults are wedge
shaped and green in colour.
•The adults have a black spot on
each forewing.
Damage symptoms
The adults & nymphs of GLH
suck cell sap from leaves.
The affected plants turn yellow and remain
stunted with less number of tillers .
E.T.L. is 10-20 hopper/hill
•They act as a vector and transmit
“Rice Tungro” virus disease also
•Yield loss due to 3-65 %
MANAGEMENT :
Blunt
@ 320 ml / acre
Twins @ 40-
60 gm / acre.
oror
Dawn Super
@ 100 ml /
acre.
* Infection may starts at seedling stage from
Weeds.
* Symptoms are identified as leaf rot.
* Later on base of seedlings is infected and whole
plant is killed.
• Occurring in all states in transplanted rice.
• Peninsular area is more prone to the
attack.
SHEATH BLIGHT (Rhizoctonia solani)
Major Diseases
* Visible damage symptoms appears at tillering stage
* The infected leaf sheath
becomes discolored
at or above water level.
* Large elongated, oblong water
soaked lesions are formed and
finally turn brown to dark brown
which looks like snake skin.
Lesions on leaf sheath of rice
Left : lesions in early stage
Right : lesions in later stage
* The pathogen later on infects leaf
blade also and infected leaves give
white blotch appearance.
Spreading lesions to
upper parts
Lesions on leaf blades of rice
Sometimes these lesions are mistaken
for leaf blast.
Favorable conditions for sheath blight
1. High temp. during night (23º - 25ºC) &
high RH (> 96%)
2. Cultivation of high yielding and early
maturing varieties.
3. Cultivation of early maturing varieties .
4. Heavy application of fertilizers, specially
of nitrogen.
5. Dense planting of crop.
Relationship between
the parts infected
Damage caused by Sheath blight
1. Absorption of nutrients and water through
roots is decreased.
2. Diseased rice plants become prone to lodging.
3. Death of whole infected plants occur.
4. During moderate infection 5-10% and during
heavy infection 30-70% yield losses occur.
MANAGEMENT
Avoid excess application of Nitrogen.
Apply Remote Power
Captan 70%+Hexaconazole 5% WP
@ 350-400 gm /acre.
Or
Tango Super @ 200 ml per acre
The best time for
1st application at Tillering.
2nd application at booting stage.
3rd application at heading/penicle.
BLAST
(Pyricularia oryzae)
• Highly destructive disease of rice.
• Affects all parts of the plant.
• Most conspicuous when attacks leaf
blade and the neck.
• Also attacks other parts like - leaf
sheath, rachis, joints of the culm,
glumes.
Phases of blast depend on crop stage
SEEDLING BLAST
•Highly destructive disease
of rice.
•Early infection in nursery
results in death of affected
Plants.
LEAF BLAST
•Spots first appear as minute brown specks,
which later on become spindle/eye shaped.
•Center of the spot is grayish with brownish
margin.
•The several spots later on coalesce and the
whole leaf withers.
•Lower nodes of stem are affected,
which turn black and rot.
•Black & brown spot are seen on the rachis
and glumes.
•The affected culm can be pulled out
(Leading to total yield loss).
NODE BLAST (STEM-INFECTION)
NECK BLAST
• The neck tissues are most susceptible to
blast at just ear emerging stage.
• As the result ear heads are broken down.
• The spots are grayish-brown, later turning
to black.
 The affected panicle falls, showing typical
neck phase of the disease (Leading to
total yield loss).
 The neck symptoms may be mistaken for
stem borer damage or sheath blight.
 If attack occurs at grain filling stage,
grains will be partially filled, but the
kernels will be chalky & brittle or may
remain green.
FAVOURABLE FACTORS FOR
BLAST INCIDENCE
• Cool Nights (20-24oc)
• High Humidity (>90%)
• Heavy dew formation and foggy weather during early
hours.
• Application of higher doses of nitrogenous fertilizer.
• Upland rice is more susceptible than wetland rice.
• Delayed transplanting / sowing.
• Sandy soil & Cold irrigation water.
DISEASE MANAGEMENT
Cultural:
• Early planting
• Judicious use of Nitrogenous
fertilizer.
• Do not allow nursery bed to dry
• No close planting
• Resistant varieties
Chemical Control
Apply Sandesh (Isoprothiolene 40% EC)
Dose- 300-400 ml per acre
Time of Application
1. At 60-70 DAT ppr during Panicle
Intiation
2. Repeat at 15 days after I spray or
when disease is visible
CHEMICAL CONTROL
Veer-75 WP @ 120-160 g / acre.
•Time of application
•Apply at initial notice of symptoms.
•Just before panicle initiation stage and repeat
after 15 days.
Bacterial Leaf Blight (BLB)
(Xanthomonas campestris pv. oryzae)
LEAF BLIGHT STAGE:
•On leaf blades, lesions begin at one or both the
margins and also from tip as yellow to white
water soaked stripes.
•The mature lesions appear straw coloured
with wavy margins.
•Later on the entire leaf may die.
On the surface of young lesions, milky
or opaque dew drops may be observed
in the early morning.
Symptoms
• Kresek (wilt) stage:
•Less common but most destructive at seedling stage.
•Appears 1-6 weeks after transplanting.
•Initially plants wilt & finally die.
MANAGEMENT :
Drain out the water when 1st symptom occurs
and dry field till cracks developed.
• Stop use of Nitrogenous fertilizers.
• Use of resistant varieties.
Note: Chemical control is not very effective
against BLB.
Chemical Control
Bactro Plus Gold @ 60
gm per acre
BACTERIAL LEAF STREAK
(Xanthomonas campestris pv. oryzicola)
• Water-soaked to
translucent inter-
venal streaks.
• Run parallel to the
veins.
• The streaks later-on
turn yellow to
orange brown.
* Bacterial exudation is observed as yellow
amber coloured drop-lets.
* Bacterium enters the plant through mechanical
injuries or natural cell openings (stomata).
CONTROL : Same as BLB mgt.
FALSE SMUT
Ustilaginoidea virens
* More severe in years of high rainfall.
* Symptoms visible only after panicle
emergence.
• At milky stage, grains are
transformed to velvety greenish balls.
* Hybrid paddy varieties and low land
area are more prone.
Favorable conditions for False Smut:
Minimum temp. (20ºC) with RH >92% &
cloudy weather before & during flowering.
MANAGEMENT :
Tango Super @200
gm or
Srizol
Application time:
1st at just before the
panicle emergence and
2nd after 15 days
BROWN LEAF SPOT
(Helminthosporium oryzae)
•The mature oval spots on
leaves are brown
with gray on white centres.
•Black or dark brown spots
appear on glumes.
• Blackish spots are also found
on grain.
• Economic loss as yield
quality is deteriorated.
MANAGEMENT :
• Avoid infected Seeds
• Seed Treatment with
Acer
• Foliar spray with
Acer @ 250-300 g / acre
+
Veer @ 120 gm per acre
THANK YOU

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Rice crop production techniques

  • 2. Bio Gold – Pure Sea weed Extract – Contains Naturally Occurring Hormones and Nutrients – Break dormancy, Higher Germination and vigorous seedling growth leading to early etablishment. – Leads to Better Production and Product Quality – Helps Plant overcome Stress – To be applied as Seed Dressing or sprayed in standing crop at 40-45 DASDosage Seed Dressing - 1 gm per kg seed Spraying - 150-200 gm per acre
  • 3. Root-o-Max Gold Root-o-Max Super Gold – Balanced Mix of Sea weed Extract, amino Acids, humic acids, Micronutrients for Rapid growth of plant – Soil Conditioner that enhances the soil structure for better aeration, Enhance the nutrient absorption capacity of the plant and leads to higher production of superior quality. – Provides the right mix of nutrients for growth and Productivity. Dosage- 4-6 Kg Per Acre
  • 4. Picaso Gold – Chelated mix of Micronutrients – Corrects the Nutrient Deficiency in the plants, thus ensuring healthy growth and protection against deficiency diseases. – Aids the Plant in abiotic Stress tolerance – Better results can be obtained with application of Bio Gold Dosage 250-300 ml per acre
  • 5. Indomycorrhiza Mycorrhiza denotes one or a combination of Root Associated Fungi that form Symbiotic relationship with the plant roots, while the plant provides them with Glucose, they act as extended arms of the plant roots to help fetch Available Soil Nutrients , especially Phosphorus for the plant Advantages to the farmer – For Higher Fertiliser Use Efficiency, Soil Conditioning, PH control – Recognised as a fertiliser. – Better long term conditioning of soil, Saving of Fertiliser to the farmer Dosage- 4 Kg per acre
  • 6. Productivity enhancement @150-200 ml /Acre At Panicle Initation Stage @1 Kg per acre At 30-40- DAT, repeat at 65 DAT
  • 7. Enhancing Spray Coverage and Effectiveness Silicone based superior super spreader Spreads spray solutions for superior coverage and penetration, thus ensuring effectiveness of the agrochemicals. Ensures saving of Agrochemicals, water and Labour Can be used for enhancing Irrigation effectiveness @ 150 ml per acreDosage- 1 ml per 3 Lit Water
  • 8. Area and Yield of Rice in Major States State Area (Mill. ha) Area (Mill. acre) Yield (Kg/ha) Yield (Kg/acre) West Bengal 6.07 15.1 2514 1005.6 Uttar Pradesh 5.88 14.7 2120 848 Orissa 4.50 11.2 1589 635.6 Andhra Pradesh 3.83 9.5 2978 1191.2 Chhattisgarh 3.73 9.3 1374 549.6 Bihar 3.57 8.9 1480 592 Assam 2.53 6.3 1524 609.6 Punjab 2.49 6.22 3545 1418 Tamil Nadu 2.11 5.27 3263 1305.2 Madhya Pradesh 1.76 4.4 948 379.2 Punjab 2.8 7.0 4010 1604 Haryana 1.2 3.0 3008 1203.2
  • 10. Post Emergent Weed Management Orion Gold effectively controls grasses, sedges and broad leaf weeds infesting rice crop It has wide application window and can be used in early post emergent segment Recommendation for use Nursery: 10-12 days of sowing for nursery rice Transplanted Rice: Within 10-14 days of transplanted rice when most of the weeds have already emerged and are of 3-4 leaf stage depending upon soil and climatic factors Direct seeded rice: Optimum time of application is within 15-25 days of the sowing
  • 11. Dosage Per Hectare Crop Weeds Dosage/Hectare Waiting Period (days) a.i (g) Formulation (ml) Water (L) Rice (Nursery) Echinocloacrusgalli, Echinocloacolonum, Ischaemumrugosum, Cyperusdifformis, Cyperus iria, Fimbristylismilliacea, Eclipta alba, Ludwigiaparviflora, Monochoriavaginalis, Alternenthraphiloxeroides , Sphinocleazeylanica 20 200 300 Waiting period has been redundant as period between sprayand harvest has been > 78 days Rice (Transplanted) 20 200 300 Rice (Direct seeded) 20 200 300
  • 12. Method of Application 1. Remove water from rice field 2. Mix required dosage (80-120 ml per acre) with adequate quantity of water 3. Use flat fan/ flood jet nozzle for spray and spray uniformly over the targeted plants 4. Spray mist should cover the foliar parts of weeds at application 5. Refill the field with water within 2-3 days of application 6. Maintain standing water of 3-4 cm for a minimum of 10 days
  • 13. Precautions • Do not spray if the rains are expected • Do not apply by sand mix technique • Do not spray without draining out the water from the field • Do not tank mix with sulphur and copper containing pesticides
  • 14. Insect-Pests Management Yellow Stem borer Pink Borer Leaf folder Brown Plant Hopper White Backed Plant Hopper Green Leaf Hopper Case worm Gall Midge
  • 15. Table: Paddy Insect-Pests E.T.L. Name of the Insect Pests Economic threshold level Brown plant hopper 5-10 hoppers/hill. Green plant hopper 10-20 hoppers/hill. White back plant hopper 10-20 hoppers/hill. Rice Hispa 1-2 adults/hill. Stem borer One egg mass/sq.mt. or 5% dead hearts. Gundhi bug 1-2 bugs/hill. Gall midge One silver shoot/sq.mt. Armyworm One larvae/hills. Grasshoppers One number/hill. Thrips 10 thrips per leaf. Whorl maggot 20% damaged hills. Case worm 1-2 cases/hill. Leaf folder One damaged leaf/hill.
  • 16. YELLOW STEM BORER Scirpophaga incertulas (Pyralidae : lepidoptera) •Occurs in all states of India. •20-30 % yield loss by YSB * Monophagous. * Boro / Rabi and Kharif paddy suffers more. •Male & Female moth have bright yellowish fore- wings. • Female has a single dark spot on the center of fore wings • Male has several brown spots. • Moths are nocturnal.
  • 17. The eggs are laid in masses on the upper half of leaf and covered by light brown hair. 2-3 days 9-12 days 5-8 days Egg mass
  • 18. Damage: • Eggs laid on leaf tip. • Newly hatched larvae hang down by silken thread. • Larvae enter the leaf sheath & feed for 2-3 days. • Bore into the stem, 5-10 cm above the water level. •It feeds on internal tissues.
  • 19. Damage Symptoms (a) At vegetative stage: •Dead Heart. •No bearing of panicles. (b) At panicle initiation stage: • White ear heads • Chaffy panicle (with unfilled grains). DEAD HEART WHITE EARHEAD • Affected dead hearts/panicles can be easily pulled out.
  • 20. Pink stem borer (Sesamia inferens) Pink stem borer is a serious pest in Kharif crops. Other hosts include Bajra, Wheat, Paddy and Sugercane. This is a minor pest of Paddy. 80-300 pearl like yellow eggs are laid in to longitudinal rows in sheaths of bottom leaf. 25-30 mm full grown larva is pinkish in colour. Larva bores into central shoots resulting in drying up of growing points. In severe damage stem breaks
  • 21. MANAGEMENT Cultural: 1. Destroy the stubbles after harvest. 2. Plant the crop at about same time as of your neighborhood farmers. 3. Apply judicious dose of nitrogenous fertilizer in 3 split doses. Chemical Control : For nursery: •Kranti 4G @ 1.0 kg for 500 sq.m nursery at 8-10 days before up-rooting For main field: •KRANTI 4G @ 7.5 kg/acre at 20-30 DAT • Kranti 4G @ 10 kg./acre (For Basmati) • Kranti 50 SP- Spray @ 250 g / acre at 50 - 60 DAT
  • 22. Other Controls 300-350 ml per acre 300-350 ml per acre 300-350 ml per acre 100 gm per acre 70-80 ml per acre
  • 23. Proper Application in standing water
  • 24. LEAF FOLDER Cnaphalocrocis medinalis (Pyralidae : Lepidoptera) Full grown larvae are greenish yellow in colour. Larvae infest on young leaves. They scrap on green leaf tissue as the result leaves turn whitish. As the result 10 % yield loss may occurred. Small brownish- orange moth with two and half zig - zag lines on fore-wings. Can be seen flying in the field. The adult females lay eggs on the leaf blade near mid-rib.
  • 25. DAMAGE SYMPTOMS  The larva folds the leaf by bringing together the margins of individual or group of leaves. Larvae scrap the green matter (chlorophyll) from within the leaf rolls. Affected leaves develop white patches & dry-up affecting the crop growth. Critical Stage: Panicle initiation stage leads to serious grain yield Loss but can appear any time during the crop period.
  • 26. MANAGEMENT •Kranti 50 SP @ 250 g / acre Or •Baton -4.9% CS@ 250-300 ml / acre Note: Application of Kranti 4G also reduces leaf folder incidence.
  • 27. BROWN PLANT HOPPER (BPH) Nilaparvata lugens (Delphacidae : Homoptera) •Major pest in all rice growing areas of India. •Long winged adults: -Lays eggs inside the mid-ribs and leaf sheath. -Invades the fields. •Nymphs and adults are wedge shaped. •The egg period is 7-9 days. •The nymphs passes through 5 instars in 12-13 days. •The life cycle is completed in 22 to 26 days. •The 1st instar nymphs are white, whereas the later instar are brown. •The pest has intercontinental migration.
  • 28. Symptoms and damage : •Both nymphs and adults suck sap from the basal portion of the plants. •The affected plants show yellowing of leaves, in a circular patch known as “Hopper burn” •Later the entire crop dies up. •The affected stems become soft and unfit for straw. •Economic Threshold level is 5-10 hopper/hill. •B.P.H. can cause 10 -70 %yield loss in paddy crop. •Insects also release toxins causing viral diseases like: “Grassy stunt”, “Ragged stunt” & “Wilted stunt”.
  • 29. WHITE BACKED PLANTHOPPER Sogatella furcifera (Delphacidae : Homoptera) * Nymphs are white to dark gray or black and white in colour. * Causes damage by sucking plant sap. * Adults have white strip on their back. E.T.L. is 10-20 hopper/hill •Heavy infestation may cause outer leaves of a hill to show burn symptom, and can cause 10-70 % yield loss
  • 30. MANAGEMENT FOR BPH & WBPH Cultural Practices: •Judicious use of nitrogenous fertilizer. Chemical Control: Prophylactic Control- Twins @ 60 gm per acre at 60 DAS Direct Control- Blunt 25%SC @ 320 ml/acre Lehar- Fenbucarb50 % EC- 300-500 ml/acre At ETL* of insect
  • 31. GREEN LEAF HOPPER (GLH) Nephotettix virescens (Cicadellidae : Homoptera) • A wide spread pest. •The nymphs and adults are wedge shaped and green in colour. •The adults have a black spot on each forewing.
  • 32. Damage symptoms The adults & nymphs of GLH suck cell sap from leaves. The affected plants turn yellow and remain stunted with less number of tillers . E.T.L. is 10-20 hopper/hill •They act as a vector and transmit “Rice Tungro” virus disease also •Yield loss due to 3-65 %
  • 33. MANAGEMENT : Blunt @ 320 ml / acre Twins @ 40- 60 gm / acre. oror Dawn Super @ 100 ml / acre.
  • 34. * Infection may starts at seedling stage from Weeds. * Symptoms are identified as leaf rot. * Later on base of seedlings is infected and whole plant is killed. • Occurring in all states in transplanted rice. • Peninsular area is more prone to the attack. SHEATH BLIGHT (Rhizoctonia solani) Major Diseases
  • 35. * Visible damage symptoms appears at tillering stage * The infected leaf sheath becomes discolored at or above water level. * Large elongated, oblong water soaked lesions are formed and finally turn brown to dark brown which looks like snake skin. Lesions on leaf sheath of rice Left : lesions in early stage Right : lesions in later stage
  • 36. * The pathogen later on infects leaf blade also and infected leaves give white blotch appearance. Spreading lesions to upper parts Lesions on leaf blades of rice Sometimes these lesions are mistaken for leaf blast.
  • 37. Favorable conditions for sheath blight 1. High temp. during night (23º - 25ºC) & high RH (> 96%) 2. Cultivation of high yielding and early maturing varieties. 3. Cultivation of early maturing varieties . 4. Heavy application of fertilizers, specially of nitrogen. 5. Dense planting of crop.
  • 39. Damage caused by Sheath blight 1. Absorption of nutrients and water through roots is decreased. 2. Diseased rice plants become prone to lodging. 3. Death of whole infected plants occur. 4. During moderate infection 5-10% and during heavy infection 30-70% yield losses occur.
  • 40. MANAGEMENT Avoid excess application of Nitrogen. Apply Remote Power Captan 70%+Hexaconazole 5% WP @ 350-400 gm /acre. Or Tango Super @ 200 ml per acre The best time for 1st application at Tillering. 2nd application at booting stage. 3rd application at heading/penicle.
  • 41. BLAST (Pyricularia oryzae) • Highly destructive disease of rice. • Affects all parts of the plant. • Most conspicuous when attacks leaf blade and the neck. • Also attacks other parts like - leaf sheath, rachis, joints of the culm, glumes. Phases of blast depend on crop stage SEEDLING BLAST •Highly destructive disease of rice. •Early infection in nursery results in death of affected Plants.
  • 42. LEAF BLAST •Spots first appear as minute brown specks, which later on become spindle/eye shaped. •Center of the spot is grayish with brownish margin. •The several spots later on coalesce and the whole leaf withers. •Lower nodes of stem are affected, which turn black and rot. •Black & brown spot are seen on the rachis and glumes. •The affected culm can be pulled out (Leading to total yield loss). NODE BLAST (STEM-INFECTION)
  • 43. NECK BLAST • The neck tissues are most susceptible to blast at just ear emerging stage. • As the result ear heads are broken down. • The spots are grayish-brown, later turning to black.  The affected panicle falls, showing typical neck phase of the disease (Leading to total yield loss).  The neck symptoms may be mistaken for stem borer damage or sheath blight.  If attack occurs at grain filling stage, grains will be partially filled, but the kernels will be chalky & brittle or may remain green.
  • 44. FAVOURABLE FACTORS FOR BLAST INCIDENCE • Cool Nights (20-24oc) • High Humidity (>90%) • Heavy dew formation and foggy weather during early hours. • Application of higher doses of nitrogenous fertilizer. • Upland rice is more susceptible than wetland rice. • Delayed transplanting / sowing. • Sandy soil & Cold irrigation water.
  • 45. DISEASE MANAGEMENT Cultural: • Early planting • Judicious use of Nitrogenous fertilizer. • Do not allow nursery bed to dry • No close planting • Resistant varieties
  • 46. Chemical Control Apply Sandesh (Isoprothiolene 40% EC) Dose- 300-400 ml per acre Time of Application 1. At 60-70 DAT ppr during Panicle Intiation 2. Repeat at 15 days after I spray or when disease is visible
  • 47. CHEMICAL CONTROL Veer-75 WP @ 120-160 g / acre. •Time of application •Apply at initial notice of symptoms. •Just before panicle initiation stage and repeat after 15 days.
  • 48. Bacterial Leaf Blight (BLB) (Xanthomonas campestris pv. oryzae) LEAF BLIGHT STAGE: •On leaf blades, lesions begin at one or both the margins and also from tip as yellow to white water soaked stripes. •The mature lesions appear straw coloured with wavy margins. •Later on the entire leaf may die. On the surface of young lesions, milky or opaque dew drops may be observed in the early morning. Symptoms
  • 49. • Kresek (wilt) stage: •Less common but most destructive at seedling stage. •Appears 1-6 weeks after transplanting. •Initially plants wilt & finally die.
  • 50. MANAGEMENT : Drain out the water when 1st symptom occurs and dry field till cracks developed. • Stop use of Nitrogenous fertilizers. • Use of resistant varieties. Note: Chemical control is not very effective against BLB.
  • 51. Chemical Control Bactro Plus Gold @ 60 gm per acre
  • 52. BACTERIAL LEAF STREAK (Xanthomonas campestris pv. oryzicola) • Water-soaked to translucent inter- venal streaks. • Run parallel to the veins. • The streaks later-on turn yellow to orange brown.
  • 53. * Bacterial exudation is observed as yellow amber coloured drop-lets. * Bacterium enters the plant through mechanical injuries or natural cell openings (stomata). CONTROL : Same as BLB mgt.
  • 54. FALSE SMUT Ustilaginoidea virens * More severe in years of high rainfall. * Symptoms visible only after panicle emergence. • At milky stage, grains are transformed to velvety greenish balls. * Hybrid paddy varieties and low land area are more prone. Favorable conditions for False Smut: Minimum temp. (20ºC) with RH >92% & cloudy weather before & during flowering.
  • 55. MANAGEMENT : Tango Super @200 gm or Srizol Application time: 1st at just before the panicle emergence and 2nd after 15 days
  • 56. BROWN LEAF SPOT (Helminthosporium oryzae) •The mature oval spots on leaves are brown with gray on white centres. •Black or dark brown spots appear on glumes. • Blackish spots are also found on grain. • Economic loss as yield quality is deteriorated.
  • 57. MANAGEMENT : • Avoid infected Seeds • Seed Treatment with Acer • Foliar spray with Acer @ 250-300 g / acre + Veer @ 120 gm per acre