PESTS OF FIELD CROPS

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PESTS OF FIELD CROPS

• 1) corn
• 2) tobacco
• 3) sugarcane

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CORN
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Ostrinia furnacalis (CORN)

• Lepidoptera Pyralidae
• stemborer

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• Damage Larva
• start by chewing holes in the leaves (best time
  to control)
• Then go into stem or stalk (drill hole)
  (difficult to control)
• Leaf with holes(outside), cut nutrient flow (once
  inside), stem weakening, collapse, the corn bud
  undevelop
• Control
• 1) Intercropping (sweet potatoe legumes)
• 2) Light trap, catch adults
• 3) crop rotation
• 4) plant flowering plant attract parasitoid
  wasps Trichogramma spp. (parasitize eggs)
• 5) insecticide dibrom and gusathion, permethrin,
  carbaryl

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TOBACCO
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Helicoverpa armigera (TOBACCO)

• Lepidotera Noctuidae
• Ulat kuntum (budworm)/damage larva
• Leaf eater, preferable young shoots
• Control use Bt

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Spodoptera litura

• LepidopteraNoctuidae
• Ulas ratus/armyworm ,damage larva

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• voracious feeders eating large pieces out of the
  leaves
• nocturnal feeders Control during outbreak,
  insecticide application at dusk (senja). 
• Insecticides
• 1) Dipterex
• 2) Dibrom

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SUGARCANE
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Saccharicoccus sacchari

• HomopteraPesuducoccidae
• Koya tebu/pink sugarcane mealybug
• Adult nymph sucking the sap of sugarcane
• Vector for virus Surgarcane
  Bacilliform Virus
• Insufficient chlorophyll, leaves turn yellowish
  or pale white
• Control destroy the infected sheath
• If serius, spray 0.03 a.i.
  Monocrotophos, Dimethoate,

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Chilo sacchariphagus

• LepidopteraPyralidae
• Stemborer
• Larva drills the stem
• Control endosulfan 0.1
• Use Egg parasitoid Trichogramma chilonis