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FOLIAGE PESTS OF MULBERRY

BY

Dr.C.V.NARSIMHA MURTHY

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Commonly 2 types of insects affects the foliage of mulberry plant.

  • sucking pest

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    • leaf folders

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Sucking pests

Mealy bug- maconellicoccus hirsutus

  • Female is pinkcolour and covered with wax
  • Females –wingless male-wing short period of life
  • 350-500 eggs. Hatch week in a time.
  • Orange colour.egg period -5-10 days
  • Adult secrets honey attracts sooty mould and ant. Nature of damage:
  • It sucks the sap from shoot tip
  • Leaf yield and plant height reduced

Symptoms:

Dark green crinkle leaves.flattering of apical shoot.TUKRA disease Management:

  • Burn the infected shoots
  • Spray DDVP 76wsc 2ml/lit
  • Release predator cryptolacemus 100 beetels/ha

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leaf hopper- empoasca flavescens

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  • Female lay pale yellow colour eggs

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  • Hatch in 10 days

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  • Sucks the under surface of leaf

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Nature of damage:

  • Nutritive value of leaf is reduced Symptoms:

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  • Hopper burn

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  • Triangular dark brown spots at tip of the leaves

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  • Management:apply ddvp 76 wsc 2ml/lit

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Female lays 200 eggs. oval and yellow in colour.

female fix leaf surface.male can fly. eggs hatch in 7 days.

male life span is 1 day.

NATURE OF DAMAGE:

desap the stem and shoots. So it dry up from the tip. SYMPTOMS:

yellowish mottled appearance of leaf. MANAGEMENT:

dislodge the scales by scrapping with ablunt edge wooden plate.

Swap the stem with diesel oil and soap mixture(3:1).

spray malathion 50 EC 1ml/lit.

  • Black scale-saissetia nigra

Red scale-aonidiella aurantii

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spiralling whitefly-aleurodicus disperses

  • Female lays pedicellate eggs and covered by wax.
  • EP-4-6 DAYS. NP-12-14 days.
  • 3rd and 4th stage instar secrete adundant of wax.

Nature of damage:

  • They attack surface of leaf.
  • Nutritive value reduced.

Symptoms:

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  • Yeloow speckling on leaves,crinckling and curling of leaves.
  • Sooty mould growth on leaves. Management:
  • Collect and burn leaves
  • Set light trap
  • Spray fish oil resin soap@40g/lit

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Leaf folders

Tobacco caterpillar-spodoptera litura

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  • Adult moths are greyish brown with white markings on the forewings hind wings have brown border.

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  • Early instar gregarious and scrab green matter.later solitary and nocturnal in habit. LP-2-3 weeks.PP-13-15 days.

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  • Nature of damage:larvae cut the stem of young plants and feed on leaves.

Symptoms:

  • The cut portion of the shoot dries and fall down.
  • Chlorophyll scrapping and defoliation in older leaves.

Management:

  • Light and pheromone trap
  • Deep ploughing t expose the pipae.
  • Spray dichlorovos 2ml/lit

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moringa hairy caterpillar- eupterote mollifera

Adults yellow incolour dark band running margin of leaf

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Eggs laid in mass

Eggs round .sulphur yellow colour. EP-9-13 days

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LP-50-60 DAYS

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PUPATION TAKES PLACE IN SOIL

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Ash weevil- myllocerus spp

  • Grey weevils lay egg in soil.

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  • Grubs feed on rootlets.
  • The adult notch the leaf margins Nature of damage:

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  • Notch on leaf edges.
  • Wilted plants. Management:

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  • Hand picking the adults and kill them.

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  • Sprau DDVP 2ml/lit

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  • Digging 7-8 cm and destroy young stages.

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leaf webber- glypodes pulveruntalis

  • Green colour larvae cause damage by folding the leaves and webbing the tender shoots.

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  • Apical tips preferred for feeding,and result in

stunting.

  • Quality of leaf and yield is affected. Symptoms:
  • Webbing at shoot tips Management:

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  • Clip and destroy the webs at shoot tips.

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  • Set light trap.

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  • Spray DDVP @2ml/lit.

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