Pests of National Significance Insect pests Aphid: Toxoptera aurantii (Boyer de Fonscolombe) (Homoptera: Aphididae) Citrus psylla: Diaphorina citri (Kuwayama) (Hemiptera: Psyllidae) Citrus leaf miner: Phyllocnistis citrella (Stainton) (Lepidoptera: Gracillariidae) Mealybug : Planococcus citri (Risso) (Hemiptera: Pseudococcidae) Fruit sucking moth: Eudocima fullonica, E. materna (Clerck) (Lepidoptera: Noctuidae) Citrus/Lemon butterfly: Papilio demoleus, P. polytes (Linnaeus) (Lepidoptera: Papilionidae) Diseases Gummosis: Phytophthora spp. Fruit rot: Phytophthora palmivora (Butler) Anthracnose: Colletotrichum gloeosporioides Scab: Elsinoe fawcettii (Bitanc & Jenkins) Sooty mould: Capnodium citri (Berk and Desm), Meliola butleri (Briosi and Pass) Citrus canker: Xanthomonas axonopodis pv. citri (Hasse) Tristeza: Citrus Tristeza Virus Greening: Candidatus liberibacter (Jagoueix) Nematodes Citrus nematode: Tylenchulus semipenetrans (Cobb) (Tylenchida: Tylenchulidae) Lance nematode: Hoplolaimus indicus (Sher) (Tylenchida: Haplolaimidae) Lesion nematode: Pratylenchus coff ee (Goodey) (Tylenchida: Pratyleanchidae) Weeds Broad leaf weeds Tropical spiderwort: Commelina benghalensis L. (Commelinaceae) Swine cress: Coronopus didymus (L.) Sm. (Brassicaceae) Horse purslane: Trianthema portulacastrum L. (Aizoaceae) Black nightshade: Solanum nigrum L. (Solanaceae) False amaranth: Digera arvensis Forssk. (Amaranthaceae) Puncture vine: Tribulus terrestris L. (Zygophyllaceae) Field bindweed: Convolvulus arvensis L. (Convolvulaceae) Common cocklebur: Xanthium strumarium L. (Asteraceae) Spurge: Euphorbia hirta L. (Euphorbiaceae) Carrot grass: Parthenium hysterophorus L. (Asteraceae) Grassy weeds Bermuda grass: Cynodon dactylon (L.) Pers., (Poaceae) Annual brachiaria: Brachiaria defl exa (Schumach.) Robyns (Poaceae) Viper grass: Dinebra retrofl exa (Vahl.) Panzer. (Poaceae) Sedges Purple nut sedge: Cyperus rotundus L., (Cyperaceae) Flat sedge: Cyperus iria L. (Cyperaceae) Pests of Regional Significance Insect and mite pests Citrus blackfly : Aleurocanthus woglumi (Ashby) (Hemiptera: Aleurocanthus) (Punjab, Maharashtra, Karnataka, West Bengal and Madhya Pradesh) Root grub: Holotrichia spp. (Coleoptera: Scarabaeidae) Soft scale: Coccus hesperidium (Handlirsch) (Hemiptera: Coccoidea) (South India). Armoured scale: Aonidiella aurantii (Maskell) (Hemiptera: Diaspididae) (Meghalaya, Punjab, Uttar Pradesh, Maharashtra,West Bengal and Karnataka) Stem borer: Chloridolum alcmene (Guenee) (Lepidoptera: Noctuidae) (Tamil Nadu) Mites: Eutetranychus orientalis (Klein) (Prostigmata: Tetranychidae) (Meghalaya, Punjab, Madhya Pradesh, Rajasthan, Haryana, Karnataka, Delhi, Jammu & Kashmir) Thrips: Scirtothrips citri (Shull) (Thysanoptera: Thripidae) (Jammu & Kashmir) Diseases Powdery mildew: Oidium citri (Link) (Uttar Pradesh) Sapling wilt: Fusarium solani (W.C. Snyder & H. N. Hansen) Blue mould rot: Penicillium italicum (Wehmer)(Tamil Nadu, Haryana, Maharashtra and Uttar Pradesh) Green mould rot: Penicillium digitatum (Pers & Sacc) (Maharashtra, Tamil Nadu and Uttar Pradesh) Sour rot: Geotrichium candidum (Link) (Maharashtra, Himachal Pradesh and Madhya Pradesh) IPM for Citrus To know the IPM practices for Citrus, click here. Source: NIPHM and Directorate of Plant Protection, Quarantine & Storage