1. CHEMICAL CONTROL OF INSECTS)

2. HISTORY - USE OF INSECTICIDE BEGAIN IN 1850-1860 AGAINST POTATO BEETLE
PARIS GREEN WAS USED AGAINST BEETLE

3. HISTORY: -
BETWEEN FLOURINE COMPOUND AND PLANT DERIVED INSECTICIDES WERE DEVELOPED
DAWN OF CHEMICAL INSECTCIDE BEGAIN WITH DISCOVERY OF -[DDT] IN 1940

4. HISTORY: -
LATER MANY HARMFUL INSECTICIDES WERE PRODUCED IN WORLD WAR 2 WHICH LATER BANNED-
DDT, BHC, ALDRIN, CaCN, ENDRIN,DIELDRIN,CARBOFURAN, ENDOSULFAN …..ETC

5. CLASSIFICATION : -
INORGANIC PESTICIDES-ARSENICAL,FOUORINE COMPOUND,SULPHUR DERIVATIVES
ORGANIC PESTICIDES- PLANT ORIGIN, ANIMAL ORIGIN,
SYNTHETIC ORGANIC PESTICIDES

6. PLANT ORIGIN PESTICIDE
NICOTINE
PYRETHRUM
ROTENONE
AZADIRACHTIN

7. NICOTINE OBTAINED FROM PLANT Nectana tobacum CHEMICAL FORMULA-
IT IS A CONTACT POISON
ENERS THROUGH TRACHEAE
AND CUTICLE
IT IS SAFE TO USE IN VARIOUS
PLANTS

8. NICOTINE IT IS EXPENSIVE
IT KILLS MANY PEST SPECIES AND BLOCK THE GROWTH OF SOME HARMFUL MICROBES ALSO

9. PYRETHRUM OBTAINED FROM FLOWERS OF Chrysanthemum roseum C.carneum
IT IS APPLIED AS SPRAY OR DUST

10. PYRETHRUM
IT LOSES TOXIC PROPERTIES WHEN EXPOSED TO SUNLIGHT,UV,AIR OR HEAT.
USED AGAINST FLIES, BED BUG
SILVER FISH

11. ROTENONE
ROTENONE IS OBTAINED FROM ROOTS OF A LEGUMINOUS PLANT Derris elliptica, D malaccensis
AND CORK-BUSH,JEWEL VINE,TUBA PLANT
IT IS SOLUBLE IN ORGANIC LIQUIDS
IT IS A CONTACT POISON
IT ATTECK NERVOUS SYSTEM

12. ROTENONE CHEMICAL FORMULA OF ROTENONE
IT WAS USED TO KILL CATTERPILLES WEEVILS
FLEAS AND TO KILL
FISHES
AFTER DDT IT LOST
ITS NEST

13. ROTENONE
IT IS NOT VERY HARMFUL FOR HUMANS IT CAUSE VOMITING AND RETCHING

14. AZADIRACHTIN
THIS INSECTICIDE IS OBTAIN FROM PARTS OF Azadirachta indica NEEM TREE
NEEM HAS INSECTS KILLING CHEMICALS
CHEMICAL; FORMULA OF AZADIRACHTIN
IT IS VERY USEFUL AGAINST
STORED GRAINS PESTS
Sitophilous oryzae,
Rizopthera dominica

15. AZADIRACHTIN IT IS ALSO USED AGAINST- VEGETABLE PESTS
IT IS SAFE FOR HUMANS

16. ORGANOCHORINE DDT- DICHLORODIPHENYL TRICHLOROETHANE C14H9Cl5
IT WAS EXTENSIVELY USED AFTER WORLD WAR-II
BUT DUE TO ITS HARMFUL EFFECTS ON ECOSYSTEM(BIOMAGNIFICATION)AND OTHER TOXIC EFFECTS IT WAS BANNED

17. CLORINATED INSECTICIDE
ALDRIN-
C12H8Cl6
USED AS DUST ,IT IS VERY POWERFUL POISON
IT IS USED TO CONTROL-
GRASSHOPPER,TERMITE
LOCUSTS ETC

18. ENDRIN
CHEMICAL STRUCTURE-C6H8Cl6O IT IS VERY TOXIC INSECTICIDE USED AGAINST GRASSHOPPERS LEPIDOPTEROUS LARVAE(CATERPILLARS) COLEOPTEROUS INSECTS AND BUGS

19. ENDOSULFAN(THIODAN) CHEMICAL FORMULA C9H6Cl6O2S
IT IS SYNTHETIC INSECTICIDE
IT IS MAINLY USED AGAINST-
APHIDS
LEAF HOPPERS
GRAM BORER
BUGS AND CATERPILLARS
MITES

20. ENDOSULFAN
NOT VERY TOXIC TO MAMMALS

21. ORGANOPHOSPHOROUS DICHLORVOS- KNOWN AS DDVP
VERY FAST ACTING INSECTICIDE
ACT AS STOMACH,CONTACT POISON
WITH FUMIGANT ACTION

22. DDVP IT IS USED AGAINST STORED GRAIN PEST MOSQUITOES
FLIES,LEPIDOPTERNS
MITES,LOCUSTS
AND APHIDS

23. MALATHION SAFE INSECTICIDE USED AGAINST STORAGE PEST, VEGETABLE PEST
CHEMICAL NAME-VERY LONG
TOXICITY-LD50-MAMMALS 479mg/Kg
SAFE INSECTICIDE USED AGAINST
STORAGE PEST,
VEGETABLE PEST

24. MALATHION
UNPLEASENT ODOUR

25. PARATHION
C10H14NO5PS

26. PARATHION ORAL TOXICITY-LD50RAT 3-6 mg/Kg
Dermal toxicity – LD50 RAT mg/kg
IT ACT AS STOMACH CONTACT AND FUMIGANT POISON
USED AGAINST WIDE RANGE OF INSECTS AND MITES
VERY TOXIC FOR MAN

27. CARBAMATE INSECTICIDE
CARBARYL-1 naphthyl N-methylcarbamate
c12H4O2N

28. CARBARYL ORAL TOXICITY-LD 50 RAT 400mg/kg DERMAL TOXICITY-
Non specific insecticide USED
AGAINST LICE,MITES AND
TICKS AND PESTS OF
COTTON VEGETABLE

29. CARBOFURAN C12H15NO3 ORAL TOXIXITY -LD50 RAT-8.2-14mg/kg
Dermal toxicity-
LD 50 RAT-10200mg/kg

30. CARBFURAN USED AGAINST- SUCKING PESTS,MITES AND ROOT INHABITING PESTS
EG-ROOT WEEVIL,CORN
ROOT WORM
FLEA,BEELTE LARVAE,
MAGGOTS

31. FUMIGANTS
GAS INSECTICIDES WHICH ENTER THE INSECT BODY THROUGH SPIRACLES AND KILL THEM
EXAMPLES-
CARBON TETRACHLORIDE
HYDROGEN CYANIDE
ALUMINIUM PHOSPHATE
METHYL BROMIDE
ETHYLENE DICHLORIDE

32. ETHYLENE DICHLORIDE CH2Cl.CH2Cl
IT IS SLOW ACTING GAS KILLS INSECT IN HRS
SO IT IS USED WITH CCl4 IN RATIO 3:1 PART OF
ETDC AND CCl4 AND SPRAYED OVER CROP

33. HCN HCN IS INE OF THE MOST DEADLY FUMIGANT
NEED HIGH PRECAUTIONS SO IT IS RELETIVLY LESS USED IN COMPARISON TO OTHER FUMIGANTS

34. METHYL BROMIDE MOST COMMONLY USED FUMIGANT DANGEROUS FOR MAMMALS
SLOW ACTING
USED FOR STORED
GRAIN PEST AND
NURSERIES ETC.

35. BANNED PESTCIDE ALDRIN, METHY BROMIDE
BHC, DDT, FERBAM, EPN, ALUMINIUM PHOSPHIDE , DAZOMET, DIAZINON
CaCN,DIELDRIN , ENDRIN , PARATHION LINDANE
MENAZON , HEPTACHLOR, NITROFEN
TCA , CAROFURAN 50% CAPTAFOL ,PARATHION