Pest & Disease database

Organic Pest & Disease Control

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American Bollworm / Pod Borer (Helicoverpa armigera)

Helicoverpa armigera (Lepidoptera: Noctuidae)

Circular holes in bolls/pods/fruits

cottonchickpeatomatosoybean+1 more

Kharif (August–October)View controls →

Aphids (General)

Multiple species — Aphis gossypii, Myzus persicae, Lipaphis erysimi

Clusters of small soft insects on new growth

mustardwheatcottonvegetables+1 more

Cool season (Rabi), also year-round in some regionsView controls →

Aphids (Multiple species)

Aphis gossypii, Lipaphis erysimi, Myzus persicae

Dense colonies of tiny green/black insects on growing tips

mustardwheatvegetablescotton+1 more

Rabi (Oct–Feb, cool weather)View controls →

Bacterial Wilt

Ralstonia solanacearum

Sudden wilting despite adequate water

tomatobrinjalginger

Warm, humid conditionsView controls →

Banana Nematodes

Radopholus similis, Pratylenchus coffeae

Poor root system

Year-round, worse in poorly-drained soilView controls →

Banana Pseudostem Weevil

Odoiporus longicollis

Gummy ooze from pseudostem

Year-roundView controls →

Brown Planthopper (BPH)

Nilaparvata lugens

Hopper burn — circular dead patches in rice field

Kharif rice (Aug–Oct)View controls →

Citrus Psylla

Diaphorina citri

Curling of new leaves

New flush periods (multiple per year)View controls →

Cotton Whitefly

Bemisia tabaci

Tiny white insects flying when disturbed

cottontomatookra

Year-round, peaks pre-monsoon (April-June)View controls →

Diamond-Back Moth

Plutella xylostella

Window-pane feeding on leaves

cabbagecauliflower

Rabi, throughout crop cycleView controls →

Fall Armyworm

Spodoptera frugiperda

Window-pane feeding damage on young leaves

maizesorghumrice

Kharif, especially July-SeptemberView controls →

Fruit Fly

Bactrocera dorsalis, Bactrocera cucurbitae

Premature fruit drop

mangoguavacucumberbitter gourd+1 more

Year-round, peaks during fruiting seasonView controls →

Jassids (Leafhoppers)

Amrasca biguttula

Leaf edge yellowing and curling (hopper burn)

cottonokrabrinjal

Kharif, especially dry spellsView controls →

Late Blight

Phytophthora infestans

Dark water-soaked patches on leaves

Cool, humid conditions (Dec-Feb North India)View controls →

Leaf Miner

Liriomyza trifolii

Serpentine white tunnels visible in leaves

groundnuttomatobeans

Year-round, peaks in warm dry weatherView controls →

Mealybug

Phenacoccus solenopsis (cotton), Planococcus citri (others)

White cottony masses on stems and leaf axils

cottonpapayagrapesguava

Year-round, peaks in dry seasonView controls →

Pollu Beetle

Longitarsus nigripennis

Holes in tender leaves and berries

Pre-monsoon and monsoon periodView controls →

Potato Tuber Moth

Phthorimaea operculella

Tunneling in tubers (both field and storage)

Field and post-harvest storageView controls →

Powdery Mildew

Erysiphe, Podosphaera, Sphaerotheca species

White powdery coating on leaves and stems

wheatgrapescucumberokra

Dry weather with high humidity at nightView controls →

Red Pumpkin Beetle

Aulacophora foveicollis

Holes chewed in cotyledons and young leaves

cucumberbitter gourdwatermelon

Early growth stage, Kharif and ZaidView controls →

Rice Blast

Magnaporthe oryzae

Diamond-shaped lesions with grey center on leaves

Kharif, humid conditionsView controls →

Rice Leaf Folder

Cnaphalocrocis medinalis

Leaves folded longitudinally with silk

Kharif, vegetative to flowering stageView controls →

Root-Knot Nematode

Meloidogyne incognita, M. javanica

Galls/knots on roots (diagnostic symptom)

tomatobrinjalokrachili+2 more

Year-round, worsens in hot dry soilView controls →

Stem Borer (Yellow Stem Borer)

Scirpophaga incertulas (rice), Chilo partellus (maize/sorghum)

Dead heart (central shoot dries) in vegetative stage

ricemaizesorghumsugarcane

Kharif, throughout crop cycleView controls →

Thrips

Thrips palmi, Scirtothrips dorsalis

Silvery streaks on leaves

onionchilicottongrapes+1 more

Summer, dry conditions (March-June)View controls →

Tomato Fruit Borer

Helicoverpa armigera

Circular holes in fruit

Year-round, peaks in warm seasonView controls →

Turmeric/Ginger Shoot Borer

Conogethes punctiferalis

Dead central shoot

Kharif, July-SeptemberView controls →

White Grub

Holotrichia consanguinea

Sudden wilting of plants

groundnutsugarcanemaize

Kharif, larvae active June-SeptemberView controls →

Whiteflies

Bemisia tabaci (most common in India)

Tiny white insects fly up when plant disturbed

tomatocottonchilibrinjal+1 more

Year-round, peak summer (March–June)View controls →

Yellow Vein Mosaic Virus

Begomovirus (whitefly-transmitted)

Yellow network pattern along veins

Warm season, whitefly-active periodsView controls →