Integrated Pest Management

False Codling Moth
LEPIDOPTERA: TORTRICIDAE: Cryptoplebia leacotreta

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

Identification

Photo

 

Check Your Diagnosis

 

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

 

Data Sheet

Damage Symptoms

on fruit

PHOTO

on leaves

Photo

on blossom

Photo

on twigs

Photo

1. On Fruit

Feeding damage Want to know more?
  • Larvae enter the fruit and grows inside the fruit
  • Larvae bores a hole in the fruit rind to get out and the rind turns yellow brown because the tissue collapse and decay
  • False codling moth is a phytosanitary pest
  • False codling moth causes decay post harvest

2. On Leaves

None

3. On Blossoms

None

4. On Twigs

None

Life Cycle

Drawing of life cycle
K-strategist
  • Reproduce slowly
  • Resilient in adverse conditions
  • Compete effectively for environmental resources, thus high survival rate
     
   
Egg
  • Flat oval translucent
  • Laid directy on the surface of the fruit, inconspicuously in depressions of the rind
  • Female lays eggs near stylar end of fruit
Parasitized by trigogramma
  • Low humidity and low winter temps causes high mortality of the egg and first instar
Larvae
  • Low humidity and low winter temps causes high mortality of the egg and first instar
  • Larvae enter the fruit through an injury point or a navel end
  • The last instar leaves the fruit via a frass filled (granular excreta)  exit hole and drops to the ground on a silken thread or else emerges after the fruit has fallen.
  • Larvae is first creamy white with a brown-black head
  • It turns pink-red later
  • and is 10 mm long
     
Infested fruit falls from the tree three to five weeks after penetration by the larvae
  • Emerging larvae penetrate the fruit and lead to fruit decay, premature ripening and abscission
  • The rind takes on a yellowish brown color around the exit points the tissue collapse and decay
     
Pupa Pupates in loose soil Constructs a silken cocoon incorporating trash and soil particles
Adult
  • inconspicious moth overall darkbrown to gray
  • wingspan 16 20 mm
  • Forewings are mottled and hindwings are paler, lighter, even color; fringed with hairs
     
  • Nocturnal = FLY AT NIGHT
  • Some feed little or not at all
  • For the adult moth water drinking is essential
     

Seasonal Cycle in Vaalharts

Graph
Theoretical lowest threshold for development is 8 12 C in all life stages Population declines with onset of lower temps in winter First eggs are laid on the fruit from December to June

 

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

 

 
BDB Web Designs