Description about pests which are infesting brinjal

1. Pests of Vegetable crops
1. Brinjal
2. Tomato
3. Cabbage
4. Chilli
5. Okra
1

2. Pests of brinjal
2
1. Shoot and fruit borer
2. Leaf roller
3. Epilachna beetle
4. Aphids
5. Mealy bug
6. White fly
7. Thrips

3. Brinjal Fruit and Shoot Borer
Entomological name: Leucinodes orbonalis
Family: Pyralidae
Order: Lepidoptera
Insect Characteristics
 Destructive stage: Larvae/ Caterpillar
 Mouth part: Biting and chewing
 Description:
 Colour
 Size
 Preference
 Location
3

4. Dull white
Light pink
4

5. Mature Larvae
15-18 mm long
5

6.  Adult moth is white with a pink or bluish tinge
 Brownish markings on its wings
6

7. 7

8. Damage/ Symptoms
8

9. 9

10. 10

11. 11

12. 12
Creamy-white eggs are laid singly or in groups on the undersides of
the leaves, on stems, flower buds, or the base of the fruit
The newly hatched larva prefers to bore directly into the fruit
When feeding is complete pupation occurs on stems, dried shoots, or
among fallen leaves
Multiple overlapping generations occur in warm climates

13. 13
Brinjal Leaf Roller
Entomological name: Eublemma olivacea
Family: Noctuidae
Order: Lepidoptera
Insect Characteristics
 Destructive stage: Larvae/ Caterpillar
 Mouth part: Biting and chewing

14. 14
Purple - brown with many cream-colored hollow bumps and long
hairs on the back and sides

15. 15
The adult is an olive green moth that is active at night
A female lays eggs in batches of 8 – 22 on the ventral surface of leaves

16. 16
Damage/ Symptoms
Inspect the young leaves for signs of silken webbing and rolled leaves

17. 17
 Young leaves are rolled lengthwise
 Rolled leaves are brown and eventually dry
 In heavy infestations entire portions of plants appear brown and
leaf drop occurs
 The caterpillar feeds for about 4 weeks and then pupates inside
the rolled leaf
 In favorable climates there may be three to four generations
each year

18. 18
Entomological name:
Epilachna duodecastigma (12-spotted)
Epilachna vigintioctopunctata (28-spotted)
Family: Coccineliidae
Order: Coleoptera
Spotted beetles
Insect Characteristics
 Destructive stage: Grub and Adult
 Mouth part: Biting and chewing

19. 19

20. 20
Branched spines

21. 21

22. 22

23. 23
Entomological Name: Amrasca biguttula
Family: Jassidae
Order: Hemiptera (Homoptera)
Jassids/ Leaf hopper
Insect Characteristics
Destructive stage: Nymph and Adults
Mouth part: Piercing-sucking

24. 24
Adults and immatures are readily found on the undersides of leaves

25. 25
 These pests infest the lower surface of the leaves
 Commonly, if disturbed, they move very rapidly sideways and often hop
 They are usually less than 13 mm long, with slender, tapered bodies of various
colors and legs with rows of sharp spines.

26. 26
 Infested leaves curl upwards along the margins
 Outer leaf areas appear yellowish or burned
 Leaves are extremely small and
 Show a mosaic pattern of yellowing
 Fruit-set may be very low

27. 27
Insects’ nervous behavior makes them difficult to catch
In warm climates, multiple generations occur
Heavy infestations can cause yield reductions and total loss of crops
Some species transmit little-leaf disease and mosaic virus

28. 28
Thrips
Entomological name: Scirtothrips dorsalis
Family: Thripidae
Order: Thysanoptera

29. 29

30. 30
Insect characteristics
Modified piercing-sucking mouthparts
These insects are silver-shaped and very small, about the size of a
flea, and just visible to the naked eye
The young are either yellow or white
Adults are darker with two brownish strips down their backs

31. 31
Damage is most obvious on the underside of the lower leaves,
where areas appear brownish and dried up
In severe cases, the entire leaf dries up
Similar damage is seen along the mid-vein on the upper leaf
surface

32. 32
First look at the upper surface of the lower leaves. Along the mid-
vein notice the damage on either side
This is where you should see these tiny insects
Turn the leaf over and carefully look at the sections with healthy
tissue that border areas of brown or damage tissue
If you focus well, you will notice the tiny insects moving

33. 33
Adults lay their eggs within leaf tissues and the young hatch after
several days
Adults are excitable and fly off if disturbed
Pupation occurs in the soil usually at the base of the plant
Identification of species should be made by a trained taxonomist

34. 34
Whitefly
E.N: Bemisia tabaci
F: Aleurodidae
O: Hemiptera
The affected leaves show yellowish clumpy spots
In case of numerous insects, several clumpy spots coalesce together and the leaves
along with green midribs turn yellow
The nymphs during feeding secrete sticky honey like substance that cover-up the
upper parts of the leaves and flowers
The plants become stunted
The insect does more harm by disseminating diseases than does by feeding

35. 35

36. 36
Mealy bug

37. 37
Aphids
Entomological name: Apis gossipi
 Nymphs and adults suck the sap from the leaves
 The affected plants turn yellow, get deformed and dry away
 Aphids also secrete honeydew on which sooty mould grows,
which hampers the photosynthetic activity.

38. 38

39. 39