1. This document discusses several common pests that affect agricultural crops including thrips, aphids, mites, and fruit borers. 2. Thrips are tiny, winged insects that feed on and damage leaves, causing them to curl, stunt, and dry out. Their life cycle involves egg, larva, pupa and adult stages. 3. Aphids and mites also feed on plant leaves and sap, causing yellowing and wilting. Control methods for these pests include insecticide sprays and use of sticky traps.

2. 1.Thrips
•S.N. - Scirtothrips dorsalis
Thrips tabaci.
•Family - Tripidae
•Order - Thysonoptera

3. Economical importance
•Damage percentage - 30-50%
•Also responsible for transmitting leaf curl disease
•Host plant-
•Onion ,Brinjal, Okra, Cotton, Mango, Bottle Gourd
,Guava

4. Mark of Identification
•Adult
•Minute ,delicate insect less than 1 mm .
•Yellow in color .
•Wings are fringed with hair
•Nymph
•More minute and wingless .

5. Thrips

6. Life history
•Both the sexual and parthenogenesis reproduction
is occur
•Eggs - inside the leaf tissues or lower side of the
leaf .
•Larva - 4-6 days.
•Pupa - in soil.
•Adult - 2-3 days.
•The pest active dry days
•

7. Life cycle

8. Nature of damage
•The thrips scrap the epidermis of leaves and
suck the oozing sap .
•The damaged plant tissues initially become
whitish ,later brown ,ultimately dry.
•As result leaves curl ,and become small .
•Such symptoms known as Murda or Bokdya .

9. Chilli leaf curl- Murda

10. Management
• Spray 0.2% phosphomidon
•Spray 0.03% dimethoate
•Seed treatment with imidacloprid @ 3 -5 g/kg of
seed.
•Foliar spraying with carbaryl 3g/l or phosalone 3ml/l
or acephate 1 g/l
•Application of fipronil 0.3G 8 kg/acre at 15 and 45
days after transplanting.

11. 2.Aphids
• S.N. - Aphis gossypii,
Myzus persicae
• Family - Aphididae
• Order - Hemiptera

12. Aphid

13. Nature of damage .
•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.

14. Control Measures.
• Seed treatment with imidachloprid
• Thiamethoxam 5 kg/seed
• Use of yellow sticky trap.

15. 3.Mite
• S.N. - Tetranychus spp
• Family - Tetranychidae
• Order - Acarina

16. Mite

17. Nature of damage .
• They suck the cell sap from leaves .
•As result leaves wither and turn
yellowish.

18. Control Measures.
• Spray with 0.2 % Sulphur
• Dusting with Sulphur @ 20 -25 kg /ha .
• Spray with 0.03 % dicofol or
abamectin @ 150 ml /ha .

19. 4.Fruit borer
• S.N. - Helicoverpa armigera
Spodoptera litura
• Family - Noctuide
• Order - Lepidoptera

20. Management
•Deep summer ploughing.
•Monitoring with pheromone traps @ 4/acre
• Raising trap crops like castor (S. litura ), marigold (H.
armigera)
•Spraying with SNPV/ HaNPV at 250LE/ acre in the evening.
• Spray diflubenzuron 1.0 g/l controls just hatched larvae.
• Foliar spraying of thiodicarb 1.0 g/l or acephate 1.5 g/l or