• Grubs bore into the rhizome and cause death of the plant
• Presence of dark coloured tunnels in the rhizomes.
• Death of unopened pipe, withering of outer leaves.

• Grubs bore into the rhizome and cause death of the plant
• Presence of dark coloured tunnels in the rhizomes.
• Death of unopened pipe, withering of outer leaves.

• Grubs bore into the rhizome and cause death of the plant
• Presence of dark coloured tunnels in the rhizomes.
• Death of unopened pipe, withering of outer leaves.

• Eggs - laid singly, white in colour
• present on the upper part of rhizome
• Grub - Apodous, yellowish white with red head
• Pupa - white in colour, occur in inside the corm and tunneling
• Adult - Dark weevil, newly emerged weevil is red brown

• Select healthy sucker and plant
• Do not take regular crop in the same field to avoid initial infestation
• Ensure clean cultivation
• Removal of pseudo stems below ground level
• Trimming the rhizome
• Avoid growing Robusta, Karpooruvally, Malbhog, Champa and Adukkar
• Grow less susceptible varieties like Poovan, Kadali, Kunnan, Poomkalli
• Use cosmolure trap at 5/ha

• Ensure clean cultivation
• Use healthy and pest free suckers to check the pest incidence
• Destroy diseased plants with rhizome
• Direct the spray towards the crown and pseudostem base upto ground level
• Encourage activity of predators:
• Scymnus , Chilomenes sexmaculatus , Chrysoperla carnea and other coccinellids;
• Use entomopathogens, Beauveria bassiana

Banana corm split trap

• Trap adult weevils with pseudostem chopped into small pieces
• kept near infested clump at 65/ha.
• Soil incorporation at the time of planting: carbofuran 3 G 10g, phorate 10 G 5 g/plant, lindane 1.3 D 20 g/plant.
• Before planting, the suckers should be dipped in 0.1 per cent quinalphos emulsion.
• Apply castor cake 250g or carbaryl 50g dust or phorate 10g per pit before planting also prevents infestation
• Severe attack dimethoate, methyl demeton, or phosphamidon may be sprayed around the collar region.

Pseudostem borer , Odoiporus longicollis

• Grub bore into pseudostem making tunnels
• Cutting holes on outer surface
• Exudation of plant sap – initial symptom
• Blackened mass comes out from the bore hole
• Tunneled part decomposes and pseudostem becomes weak
• Wilting of the plant.

• Eggs – are laid at random on cut ends of pseudostem, yellowish-white, cylindrical in shape
• Grub - Apodous, creamy white with dark brown head.
• Pupa – pale yellow colour, fibrous cocoon formed inside the tunneling on the periphery
• Adult - Robust, reddish brown and black weevil.

• Remove dried leaves periodically and keep the field clean
• Prune the side suckers every month
• Use healthy and pest free suckers to check the pest incidence
• Do not dump infested materials into manure pit
• Uproot infested trees, chop into pieces and burn
• Use longitudinally split pseudostem trap at 65/ha

Note

• 2ml at 45 cm from ground level; another 2m at 150 cm from ground level

SAP FEEDERS Banana aphid , Pentalonia nigronervosa f. typica

• Leaves are bunched into a rosette appearance
• Leaf margins are wavy and upward rolling
• Stunted growth of the plant
• Do not produce bunches
• Vector of bunchy top disease.
• Seen in colonies on leaf axils and pseudostem

• Nymphs - are dark in colour
• Adult – Brownish and has black veined wings

Tingid or Lace wing bug, Stephanitis typicus

• Nymphs – are yellow colour, occur in under surface
• Adult – yellow colour with minute fringed wings, seen in under surface of leaves

• Collect and destroy the damaged leaves, flowers and fruits along with life stages
• Spraying with dimethoate 30 EC - 850 ml/ha or phosphamidon 85 WSC - 300 ml/ha
• Use yellow sticky trap at 15/ha
• Spray carbendazim 3g/ litre of water Application of press mud at 5 kg per tree reduces the wilt incidence

Hard scale, Aspidiotus destructor

• Nymph - Oval translucent, Yellowish brown with waxy coating.
• Adult - Female circular, semi transparent and pale brown.

• Collect and destroy the affected plant parts
• Field release of coccinelid predators like Chilocorus nigritus, Symnus coccivora

Fruit rust thrips, Chaetanaphothrips signipennis

• Rusty reddish discolouration on the fingers
• Yellowing of leaves and rusty growth over fruit.

• Adult - Yellowish white with shaded wings.

• Destroy all volunteer plants and old neglected plantations
• Use healthy and pest free suckers for planting
• Hot water treatment prior to planting.
• Bunch covers (which cover the full length of the bunch) protection applied very early.
• Regular checking of fruit under the bunch covers is essential to ensure that damage
• Bunches, pseudostem and the suckers should be sprayed chlorpyrifos
• Soil application fipronil and bifenthrin
• Field release of coccinelid predators like lacewings, ladybird beetles

LEAF FEEDERS Castor hairy caterpillar , Pericallia ricini

• Caterpillar scraping the chlorophyll content and windowing in unfurled leaves.

• Larva - Black with brown head having long brown hairs
• Adult - Grey coloured with dark spots on the pinkish hind wings.

• Collect and destroy egg masses and caterpillars
• Use burning torch to kill the congregating larvae
• Use light trap to attract and kill the adults
• Spray chlorpyriphos 20 EC or quinalphos 25 EC 2ml/lit

Cut worm, Spodoptera litura

• Young larvae feed by scrapping the leaves from ventral surface
• Later on feed voraciously at night on the foliage.

• Larva - Pale greenish brown with dark marking.
• Yellow and purplish spots in the sub marginal areas.
• Fore wing - Stout moth with wavy white markings on the brown.
• Hind wings - white having a brown patch along the margin.

• Hank pick and destroy the caterpillar
• Collect and destroy the damaged plant parts
• Summer ploughing to expose to the pupae
• Use light trap 1/ha
• Spray application of azinphosethyl, chlorphyriphos
• Severe infestation – spot application of Bt
• Foliar spray with avanthe 1 ml in 100 ml of water

• Field release of egg parasitoid Telenomus spodopterae
• Field release of entomopathogenic fungus, Nomuraea rileyi

• Telenomus spodopterae

• Telenomus remus