Pests of National Significance Insect pest and mites Mealybug: Paracoccus marginatus Williams & Granara de Willink (Hemiptera: Pseudococcidae) Grasshopper: Poecilocerus pictus Fab (Orthoptera: Pyrgomorphidae) Diseases Stem or Foot or Collar rot: Pythium spp. Phytophthora spp., Rhizoctonia spp. Papaya ring spot disease: Papaya Ring Spot Virus Papaya mosaic disease: Papaya mosaic virus (Potex virus) Anthracnose: Gloeosporium papayae P Henn / Colletotrichum gloesporioides (Penz.) Penz. &. Sacc Postharvest diseases Anthracnose: Gloeosporium papayae P Henn Rhizopus rot: Rhizopus stolonifer (Ehrenb.: Fr.) Vuill. Fruit rot: Alternaria alternata (Fr.) Keissl. Phomopsis rot: Phomopsis caricae-papayae Petr. & Cif. Stem end rot: Botryodiplodia theobromae Leavitt and Munnecke (Lasiodiplodia theobromae) Nematodes Reniform nematode: Rotylenchulus reniformis Linford and Oliveira (Tylenchida: Hoplolaimidae) Weeds Grasses Large crabgrass: Digitaria sanguinalis L.(Scop.) (Poaceae) Yellow foxtail: Setaria glauca (L.) P. Beauv. (Poaceae) Goosegrass: Eleusine indica (L.) Gaertner. (Poaceae) Bermuda grass: Cynodon dactylon (L.) Pers. (Poaceae) Broad leaf Carrot grass: Parthenium hysterophorus L. (Asteraceae) Coat buttons: Tridax procumbens L. (Fabaceae) Yellow spider flower: Cleome viscosa L. (Capparidaceae) Asthma herb/Spurge: Euphorbia hirta L. (Euphorbiaceae) Cock's comb: Celosia argentea L. (Amaranthaceae) Pigweed: Amaranthus viridis Hook. F. (Amaranthaceae) Goat weed: Ageratum conyzoides L. (Asteraceae) Sedge Purple nutsedge: Cyperus rotundus L. (Cyperaceae) Flat sedge: Cyperus iria L. (Cyperaceae) Umbrella sedge: Cyperus difformis L. (Cyperaceae) Birds Jungle crow: Corrus macrocercus culminates wagker (Passeriformes: Dicruridae) Myna: Acridotheres tristis L. (Passeriformes: Sturnidae) 5.3. Roseinged parakeet: Psittacula krameri (Psittaciformes: Psittacidae) Pest of Regional Significance Insect pests Cotton whitefly: Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) Scale insect: Aspidiotus destructor Signoret (Homoptera: Diaspididae) Aphid: Aphis gossypii Glover, Myzus persicae Sulzer (Hemiptera: Aphididae) Fruit fly: Bactrocera diversus Coquillett, B. cucurbitae Coquillett (Diptera: Tephritidae) Grey weevil: Myllocerus viridans (Coleoptera: Curculionidae) Stem borer: Dasyses rugosellus Diseases Damping off of seedling: Pythium spp. Phytophthora spp., Rhizoctonia spp. Powdery mildew: Oidium caricae F. Noack Papaya leaf curl disease: Papaya leaf curl virus Nematode Root-Gall Nematode: Meloidogyne incognita IPM for Papaya To know the IPM practices for Papaya, click here. Source: NIPHM and Directorate of Plant Protection, Quarantine & Storage