Integrated Pest Management

WHITE FLY

HEMIPTERA: ALEYRODIDAE: Aleorocanthus sp.

Top Check Your Diagnosis Data Sheet Natural Enemies Management
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    LIFE CYCLE   ECONOMIC THRESHOLD
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Identification

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Check Your Diagnosis

Wings are rooflike

White flying insects

Sap sucking mouthparts

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Top Check Your Diagnosis Data Sheet Natural Enemies Management
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    LIFE CYCLE   ECONOMIC THRESHOLD
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Data Sheet

Damage Symptoms

on fruit

PHOTO

on leaves

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on blossom

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on twigs

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1. On Fruit

NONE

2. On Leaves

Feeding damage Want to know more?
Weakening of heavily infested trees

Can cause leaf drop

sap loss and development of sooty mould lessens tree vigor

3. On Blossoms

NONE

4. On Twigs

NONE

Life Cycle

Drawing of life cycle
Gradual metamorphosis    
r-strategist:
  • high reproduction (infestation levels rise quickly)
  • low survival (can easily be killed)
  • rebound quickly ( after spraying pest levels can rise fast if all predators are killed)
   
Egg Eggs are laid in a spiral pattern on the underside of leaves  
Larvae 3 instar larvae
Elliptical body
Brownish to black with a short cottony fringe of wax all around
Numerous stout spines are present on the body
 
Pupae Marginal band of white waxy secretion
Pupae have spines( A. woglumi)
Or distinctive black and white patterns on covering (Aleurocanthus sp.)
 
Adults Flying adults
The color of wings are variable
Eyes are reddish and antennae and legs are yellowish
 

Seasonal Cycle in Vaalharts

Graph
Multivoltine: 6 generations per year

 

Top Check Your Diagnosis Data Sheet Natural Enemies Management
    DAMAGE SYMPTOMS   MONITOR
    LIFE CYCLE   ECONOMIC THRESHOLD
    SEASONAL CYCLE   CONTROL OPTIONS
        CHECK POINTS

 

Natural Enemies

Photo Photo Photo Photo

 

 

Top Check Your Diagnosis Data Sheet Natural Enemies Management
    DAMAGE SYMPTOMS   MONITOR
    LIFE CYCLE   ECONOMIC THRESHOLD
    SEASONAL CYCLE   CONTROL OPTIONS
        CHECK POINTS

Management

 
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