Pests of National Significance Insect and mite pests Red pumpkin beetle: Raphidopalpa foveicollis Lucas (Coleoptera: Chrysomelidae) Fruit fly: Bactrocera cucurbitae Coquillett (Diptera: Tephritidae) Thrips: Thrips tabaci Linderman (Thysanoptera: Thripidae) Whitefly: Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) Aphid: Aphis gossypii Glover (Hemiptera: Aphididae) Leaf eating caterpillar: Diaphania indica Saunders (Lepidoptera: Pyralidae) Serpentine leaf miner: Liriomyza trifolii Burgess (Diptera: Agromyzidae) Red spider mite: Tetranychus urticae Koch (Acarina: Tetranychidae) Diseases Downy mildew: Pseudoperonospora cubensis Berkeley & Curtis Powdery mildew: Erysiphe cichoracearum DC, Sphaerotheca fuliginea (Schltdl.) Pollacci) Anthracnose: Colletotrichum orbiculare Berk. & Mont. Arx, & C. lagenarium Pass. Ell. & Halst Alternaria leaf spot: Alternaria cucumerina Elliot Fusarium wilt: Fusarium oxysporum f.sp. niveum (E.F. Sm.) W.C. Snyder & H.N. Hans Bud necrosis diseases: Tomato spotted wilt virus (Tospo virus) Cucumber mosaic disease: Cucumber mosaic virus Nematode Root - knot nematode: Meloidogyne sp. Weeds Broad leaf Lamb’s quarter: Chenopodium album L. (Chenopodiaceae) Scarlet pimpernel: Anagallis arvensis (Primulaceae) Sweet clover: Melilotus indica L. (Fabaceae) Swine cress: Coronopus didymus L. Sm. (Brassicaceae) Fine leaf fumitory: Fumaria parviflora Lam. (Papaveraceae) Corn spurry: Spergula arvensis L. (Caryophyllaceae) Pigweed: Amaranthus viridis Hook (Amranthaceae) Black nightshade: Solanum nigrum L. (Solanaceae) Common purselane: Portulaca oleracea L. (Portulacaceae) False amaranth: Digera arvensis Forssk. (Amaranthaceae) Carrot grass: Parthenium hysterophorus L. (Asteraceae) Grasses Blue grass: Poa annua L. (Poaceae) Rabbit/crow foot grass: Dactyloctenium aegyptium L. Willd. (Poaceae) Crab grass: Digitaria sanguinalis L. Willd (Poaceae) Sedges Purple nut sedge: Cyperus rotundus L. (Cyperaceae) IPM for Watermelon To know the IPM practices for Watermelon, click here. Source: NIPHM and Directorate of Plant Protection, Quarantine & Storage