The document discusses the taxonomy, cultivation, and significant pests and diseases affecting rice (Oryza sativa) cultivation. It covers the global and Indian production areas and the productivity of rice, highlighting important insect pests and diseases, including fungal, bacterial, and viral diseases. The pests and diseases listed pose significant threats to rice yield and include various species and their impacts on crops.

1. Taxonomy
Cultivation
Insect & Pest
Diseases
Nutrient Deficiency
Important Points
Rice (Paddy)

2. Taxonomy
 Scientific Name – Oryza sativa
 Family – Poaceae (Gramineae)
 Chromosome No. – 2n=24
 Origin – Indo-Burma region (South East
Asia)
Oryza hava 24 speciesin which 2 are cultivated
1- Oryza sativa (3 races)
Indica – India (Tropical & Sub Tropical)
Japonica – Japan (Temperate & Sub tropical)
Javanica / Balu rice – Indonesia
2- Oryza glaberrima – is grown only in West Africa

3. Area & Production
 Globally
Area: India > China > Indonesia
Production: China > India > Indonesia
Productivity: USA > Japan > China
 In India
Area: West Bengal > UP > Bihar
Production: West Bengal > UP > Andra Pradesh
Productivity: Productivity: Punjab (34 q/ha)

4. INSECT
NURSERY INSECT
 Aphid
 Green leaf hopper
 Rice case worm
 Paddy stemborer
 Swarming caterpillar
Stenchaetothrips
biformis
Nephotettix virescens
Nymphula depunctalis
Scirpophaga incertulas
Spodoptera mauritia

5. MAIN FIELD PEST
 Paddy stem borer -
 Gall midge -
 Swarming caterpillar -
 Rice skipper -
 Leaf folder / Leaf roller -
 Rice horned caterpillar -
 Yellow hairy caterpillar -
 Grasshopper -
 Short horned grasshopper -
Scirpophaga incertulas
Orseolia oryzae
Spodoptera mauritia
Pelopidas mathias
Cnaphalocrocis mainsails / Marasmia
patnalis
Melanitis ismene
Psalis pennatula
Hieroglyphus banian
Oxya nitidula

6.  Green leaf hopper
-
 Brown Plant leaf hoppeer
-
 White Backed plant hopper
-
 Mealy bug
-
 Rice ear-head bug
-
 Thrips
-
 Spiny beetel / Rice hispa
Nephotettix virescens
Nilaparvata lugens
Sogatella furcifera
Brevennia rehi
Leptocorisa acuta
Stenchaetothrips biformis
Dicladispa armigera
Hydrellia sasakii

7. DISEASE
FUNGAL DISEASE
 Blast
-
 Brown spot
-
 Sheath rot
-
 Sheath blight
-
 False smut
-
 Udbatta disease
-
 Stackburn Disease
Pyricularia oryzae
Helminthosporium
oryzae
Sarocladium oryzae
Rhizoctonia solani
Ustilaginoidea virens
Ephelis oryzae
Trichoconis padwickii
Tilletia barclayana / T.
horrida

8.  Leaf scald -
 Foot rot / Bakanae -
disease
 Grain discolouration -
Microdochium oryzae
Fusarium moniliforme
Drechslera oryzae , D. rostratum ,
D. tetramera , Curvularia lunata ,
Trichoconis padwickii ,
Sarocladium oryzae , Alternaria
tenuis , Fusarium moniliforme,
Cladosporium herbarum ,
Epicoccum purpurascens ,
Cephalosporium sp. , Phoma sp. ,

9. BACTERIAL DISEASE
 Bacterial leaf blight
 Bacterial leaf streak
Xanthomonas oryzae pv.
Oryzicola
Xanthomonas oryzae pv.
Oryzicola

10. Rice Tungro
Disease (RTD)
Rice tungro
bacilliform
virus(RTBV) &
Rice tungro spp.
Leaf Hopper Nephotettix
virescens
Rice Grassy
stunt disease
Rice grassy stunt
tenuvirus
Brown Leaf
hopper
Nilaparvata
luqens
Rice dwarf Rice dwarf virus Nephotettix
cincticeps, Reclia
dorsalis, N.
niqropictus
Rice raggged
stunt disease
Rice ragged stunt
virus
Brown Plant
hopper
Nilaparvata
luqens
VIRAL DISEASE TRANSMITTED
BY

11. Thank you
Made by :
Arpit Jangid & Amrita Sharma