Transcript RLO Insect Pests of Mango in Nursery

Introduction
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Mango is considered as king of all fruits. India produces 80%
of world's mangoes.
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About 175 species of insects have been reported damaging
mango plant.
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Pests like Mango Hoppers, Mealy Bug and Stone Borer
causes considerable damage during nursery stage of mango.
Mango Hoppers
Nature of Damage:
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Mango Hopper nymphs and adults suck
cell sap from the tender shoots during
rainy session.
Infested leaves of Mango shrivel, turn
brown & ultimately fall down.
Shoot Damage by Mango
Leafhopper
Mango Hoppers secrete honeydew like
substance which encourage the growth
of black sooty mold which severely
affects photosynthetic activity of leaves.
Mango hoppers are known to affect the
marketable quality of seedlings in the
nursery.
Honeydew Secretion by Mango
Leafhopper
Mango Hoppers
Control
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Spray 0.05% Malathion 50 EC or 0.04%
Phosphamidon 85 EC in Oct- Nov.
Fogging with Mixture of Malathion and
Diesel in 1.5 : 8.5 proportion.
At higher level of hopper density (>4 hopper/
shoot), spray 0.005% Imidacloprid, while at
lower density (<4 hopper/shoot), spray 3000
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ppm Azadirachtin @ 2ml/liter.
Use of natural enemies of hoppers like
Reduviid and Irantha armiper.
White fungus, Verticillum lacanii is also an
effective control.
Mango Leafhopper
Mango Mealy Bug: Drosicha maniferae
Host Plants:
Mango, Jackfruit, Guava, Papaya and
Lemon.
Nature of Damage :
Nymphs sucks sap from tender shoots
and leaves which dry and drop.
Mango Mealy Bug
Control
• Soil solarization and deep plough during summer to expose
eggs.
• Application of 5 cm wide sticky bands around stem in mid
December prevents nymphs from crawling up the seedling.
• Spray 2.5 ml Methyl Parathion in 10 liters of water.
Mango Stone Borer Stemochetus mangiferae
Nature of Damage :
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Mango Stone Borer attacks soft fleshy varieties of mango.
Stone borer grub on hatching, create tunnel in a zigzag manner
through the pulp, endocarp and seed coat and reaches the
cotyledons and destroys them.
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Stone borer adult also feeds on the developing seeds and it
may hasten the maturity of infested fruits.
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Stone borer in Mango destroy the
germination viability of seed/ stone in
Mango nursery.
Adult of Mango Stone Borer
Mango Stone Borer Stemochetus mangiferae
Control
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Collect and destroy fallen fruits and
keep the mother plant block clean.
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Raking soil around tree in October-
November and March is helpful.
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Infected Fruit by Mango Stone
Borer
Spraying 0.05% Diazinon on trunk of
mango tree and primary branches in
October-November.
Grub of Mango Stone Borer