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1. PESTS AND DISEASES
OF APPLE AND PEACH

2. MAJOR PESTS OF
APPLE
• WOOLY APHID
• CODLING MOTH
MAJOR PESTS OF PEACH
• Fruit Fly

3. WOOLY APHID IN
APPLE
(Eriosoma lanigerum)

4. DAMAGE
SYMPTOMS
• Nymphs and adults sucks sap from
the Bark, fruits
• Weakening and death of smaller
plants in nursery
• Yellowing of foliage is one of the
sign if roots are infested.
• Galls form on the roots

5. Root Gall formation On pruning branch

6. Fruit damage Trunk damage

7. MANAGEMENT
1.Use of resistant root stocks M778,M779
2.Avoid the infected nursery plants.
3.Biological control – parasitoid (Aphelinus
mali)
4.Chemical control-Spray Dimethoate 30EC
-1ml/lit

8. 2.CODLING
MOTH IN APPLE
(Cydia pomonella)
Larva Adult

9. DAMAGE
1.Larve cause
heaviest damage
2.Larve enters the
fruits through
calyx and sides
of fruit by
making holes .
3.Losses shape of
fruit

10. MANAGEMENT
1.Removing infested fruits
from the tree
2.Fruit Bagging
3.Chemical control by
spraying Malathion,Carbaryl

11. MAJOR PEST IN PEACH
• PEACH FRUIT FLY
(Bactrocera zonata)
Damage
1.These cause Direct damage by
puncturing the fruit skin to pay
eggs
2.Maggots feeds on flesh of fruit
and makes it inedible.
3.Premature fruit drop
4.Sticky fluid oozes out from the
holes.

13. MANAGEMENT
1.Collect fallen infested fruits and dispose them by
dumping in a pot covering with soil
2.Summer ploughing to expose the pupa
3.Immersion of fruits in hot water 45-47°C for 1hr to
kill eggs and maggots
4.Methyl eugenol sex lure traps are used to monitor
the incidence.
5.Chemical control- Malathion 50EC – 2ml/lit
Dimethoate30EC– 1ml/lit

14. DISEASES OF
APPLE
1. APPLE SCAB
2. POWDERY
MILDEW
DISEASES OF
PEACH
LEAF
CURL

15. POWDERY MILDEW IN
APPLE
Symptoms:
1.Powdery growth of
mycelium on
surface of
leaves,shoots ,and
fruits
2.Leaves become
narrow,brittleand
curled
3.Shoots-reduced
Podosphaera
leucotricha

16. Powdery growth on fruits

17. MANAGEMENT OF POWDERY MILDEW
1.Pruning of
infected plant
parts.
2.Spray Dinocap-
0.05%

18. APPLE SCAB
Venturia
inaequalis
Symptoms:
1. Small ,rough,black ,
circular lesions on
their skin
2. Affected fruits rot due
to secondary infection
of the lesions
3. Low temperatures of 4
– 8°C favours the
development of
disease.

19. MANAGEMENT OF APPLE SCAB
1.Infected plants are pruned during summer
2.Affected fruits on trees or fallen on ground
should be collected and buried in the soil
3.Initially Neem oil spray
4.Chemical treatment:1.Bordeaux
mixture,2.Wettable Sulphur 3.Myclobutanil

20. MAJOR DISEASE OF
PEACH
Leaf curl (Taphrina
deformans)
Symptoms
1.It attacks
leaves
causing curling
and blister
formation.
2.Premature leaf
fall
3.The infected
portion develops
a pink or reddish

21. Reddish-Bronze
Appearence
Blister formation and leaf
curl

22. MANAGEMENT
1.Removal and Burning of infected shoots
2.Spray a)Bordeaux mixture -1% or Cabendizm-
0.1%
b)Mancozeb-0.25%

23. SUBMITTED TO,
Dr.N.Bharathi
Head and Assistant Professor
Department of Horticulture
Thank
you
Submitted by,
G.Naveen Kumar(NA/2020-
036)
M.Praveen Naidu(NA/2020-
040)