Pests of National Significance Insect Pests Tobacco caterpillar: Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) Castor semilooper: Achaea janata (Linnaeus) (Lepidoptera: Noctuidae) Shoot and capsule borer: Conogethes (Dichocrocis) punctiferalis (Guenée) (Lepidoptera: Crambidae) Diseases Seedling blight: Phytophthora colocasiae Rac. Alternaria blight: Alternaria ricini (Yoshii) Hansford Cercospora leaf spot: Cercospora ricinella Saccardo & Berlese Powdery mildew: Leveillula taurica (Lev.) Arm. Wilt: Fusarium oxysporum Schlecht. Weeds Broad leaf Pigweed: Amaranthus viridis Hook. F. (Amaranthaceae) Swine cress: Coronopus didymus (L.) Sm. (Brassicaceae) Black nightshade: Solanum nigrum L. (Solanaceae) False amaranth: Digera arvensis Forssk. (Amaranthaceae) Grasses Rabbit/crow foot grass: Dactyloctenium aegyptium (L.) Willd (Poaceae) Crabgrass: Digiteria sanguinalis (L.) Scop. (Poaceae) Burmuda grass: Cynodon dactylon (Poaceae) Sedges Purple nutsedge: Cyperus rotundus L. (Cyperaceae) Flat sedge: Cyperus iria L. (Cyperaceae) Pests of Regional Significance Insect pests Red headed hairy caterpillar: Amsacta albistriga (Walker), A. mooreii. Butler (Lepidoptera: Arctiidae) Bihar hairy caterpillar: Spilosoma obliqua (Walker) (Lepidoptera: Arctiidae) Whitefly: Trialeurodes ricini Misra (Hemiptera: Aleyrodidae) Thrips: Retithrips siriacus, Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) Hairy caterpillars: Euproctis fraternal Moore (Lepidoptera: Lymantriidae) Castor spiny caterpillar: Ergolis (Ariadne) merione ( Cramer) (Lepidoptera: Nymphalidae) Jassid: Empoasca fl avescens Fabricius (Hemiptera: Cicadellidae) Tussock caterpillar: Orgyia postica (Walker) (Lepidoptera: Lymantriidae) Castor slug: Parasa lepida (Cramer) (Lepidoptera: Limacodidae) Serpentine leaf miner: Liriomyza trifolii (Burgess) (Diptera: Agromyziidae) Disease Collar rot: Phytophthora spp. IPM for Castor To know the IPM practices for Castor, click here. Source: NIPHM and Directorate of Plant Protection, Quarantine & Storage