Leaf roller Caloptilia (=Gracillaria) acidula
Symptoms of damage |
- Slender green larvae mine part or whole of the leaflets of compound leaves
- Leaflets turns pale brown or dark brown
- Upper epidermis separated from the lower
- Intervening space filled with black excreta
- Folded portion is skeletonized & dries up
- In severe attack, the leaflets are twisted up to form cocoons
- If the branch disturbed, all larvae leave their mines
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Identification of pest |
- Larva – cylindrical, yellow with thin, scattered hairs
- Adult – small, brownish moth
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Management |
- Clean cultivation
- Collection and destruction of infested plant parts along with leaf roller
- Spray application of dimethaote 0.03% and quinalphos 0.025% were found effective against leaf roller
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Fruit Borer, Deudorix isocrates
Symptoms of damage |
- Larva bores into the fruit in different phases
- Young larva-tender fruits
- Grown up larva- attack matured fruits
- Infested tender fruits turn brown initially, and become black later
- Matured fruits start decaying from one side, which gradually spreads all over, before they fall off
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Bore holes |
Feeding injury |
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Management |
- Collection and destruction of damaged fruits
- Remove alternate hosts-pomegranate, guava, sapota, tamarind
- Release T. chilonis- 10 days interval -4 times
- Inundative release ofTrichogramma chilonis @ 15 cc/ha
- Ovipositional deterrent- Neem oil 3% or NSKE 5%
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Egg laid on the stem and fruits |
Pupae |
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Fruit Piercing Moth, Othreis materna, O. fullonica and O. ancilla
Symptoms of damage |
- Adult moth sucks the sap from fruits by making puncture
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Management |
- Removal of weed plants
- Tinospora cardifolia
- Cocculus pendules
- Destruction of fallen and decayed fruits.
- Smoking
- Collection of moths at evening by hand nets
- Collection of semiloopers from the weeds and creepers
- Use light trap
- Destruction in kerosenised water below such light
- Use of poison baits or carbaryl 2g/l
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Bark Borer Indarbela tetraonis
Symptoms of damage |
- Make tunnels in the main trunk and branches
- Larvae construct loose irregular webbing of silken threads
- Deterioration of vitality
- Reduction in yield
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Bore hole |
Tunneling - trunk |
Adult |
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Management |
- Keep orchard clean
- Collect loose and damaged bark & destroy
- Kill larvae by inserting iron spike or wire into hole
- Spot application of fenthion in 1 lit of water
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Aphid Setaphis bougainvilleae
Symptoms of damage |
- Adult moth sucks the sap from fruits by making puncture
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Aphid, Setaphis bougainvilleae |
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Management |
- Removal of weeds
- Field release of syrphids can control aphid population rapidly.
- Field release of green lacewing, Chrysoperla carnea
- Spray neem oil at 3%
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Whitefly- Trialeurodes rara
Symptoms of damage |
- Nymphs and adults suck sap from undersurface of leaves
- Yellowing of leaves on dorsal side in patches
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Adult - white fly |
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Management |
- Removal and destruction of alternate weed hosts
- Use yellow pan traps
- Spray neem seed kernel extract 5% (50 kg) and neem oil at 5 ml/l
- Spray fish oil rosin soap 25 kg at 1 kg in 40 lit of water
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Mealy Bug, Ferrisia virgata
Symptoms of damage |
- Covers tender growing points with white mass
- Suck the sap
- Vitality reduced
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Adult - mealy bug |
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Management |
- Early detection of mealy bugs - presence of ants - indicator
- Cutting of infested twigs and leaves and burying them
- Field release of green lace wing Chrysoperla carnea
- Several species of ladybird beetles such as
- Chilocorus sp.
- Cryptolaemus montrouzieri are efficient predator
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