Bud worm: Noorda moringae
Symptoms of damage |
- Larva bores into flower buds and causes shedding
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Identification of pest |
- Eggs: Creamy oval eggs laid singly on flower buds.
- Larva: Dirty brown with a prominent mid dorsal stripe, black head and prothoracic shield
- Pupa: Pupation takes place in earthen cocoon in the soil
Adult
- Forewings: dark brown
- Hind wings: white with brown border
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Leaf caterpillar: Noorda blitealis
Symptoms of damage |
- Larva feeds on the leaflets reducing them into papery structures
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Identification of pest |
- Egg: creamy white oval eggs and laid in clusters on leaves.
- Larva: Devoid of prothoracic shield
- Adult: Similar to N.moringae but bigger in size
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Adult
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Management |
- Plough around trees to expose and kill pupae
- Collect and destroy damaged buds along with caterpillar
- Set up light trap @ 1/ha
- Spray insecticides like Carbaryl 50 WP@ 1gm/ lit or malathion 50 EC 2 ml/ lit of water
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Hairy caterpillar Eupterote mollifera
Symptoms of damage |
- Larva seen in groups in tree trunks
- Feed gregariously
- Scraping the bark and gnawing foliage
- Severe infestation leads to defoliation of the tree
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Identification of pest |
- Eggs laid in clusters on leaves and tender stem
- Larval: Brownish in colour with densely hairy.
- Adult - large size moth with uniform light yellowish brown in colour
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Adult
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Management |
- Collect and destroy egg masses and caterpillars
- Set up light trap @ 1 / ha to attract and kill adults immediately after rain
- Use burning torch to kill congregating larvae on the trunk
- Spray FORS @ 25g/lit or carbaryl 50 WP @ 2g/lit
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Pod fly: Gitona distigma
Symptoms of damage |
- Drying and splitting of fruits from tip.
- Oozing of gummy exudate from fruit
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Identification of pest |
- Egg: Cigar shaped, laid in groups on the grooves of tender pods.
- Maggot: Cream coloured maggot
- Adult: Yellowish fly with red eyes
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Adult
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Management |
- Collect and destroy all the fallen and damaged fruits
- Use attractants like citronella oil, eucalyptus oil, vinegar (Acetic acid), dextrose or lactic acid
- Rake up the soil under the trees or plough the infested field to destroy puparia
- Spray insecticides like Nimbecidine 3ml/lit during 50 % fruit set and 35 days later
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Bark caterpillar: Indarbela tetraonis
Identification of pest |
Adult
- Pale brown moth
- Forewings -having brown spots and streaks
- Hind wings -white in colour
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Bore hole damage
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Adult
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Management |
- Clean all webbed material and excreta
- Plug the holes with coton wool soaked in fumigants like chloroform, formalin or petrol and seal it with mud.
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Source
www.tastypalettes.com
www.plantogram.com
pikul.lib.ku.ac.th |