Environmental Engineering Reference
In-Depth Information
TABLE 6.2
Chemical
Classiication
of
Pesticides
Chemical Type
Example
Structure
Typical Action
Organochlorines
Insecticide
p,p′-DDT
Cl
Cl
Cl
CCl
3
Organophosphates
Malathion
Insecticide
CH
2
COOC
2
H
5
MeO
P
S
CHCOOC
2
H
5
MeO
S
Carbamates
Carbaryl
Insecticide
O
CONHCH
3
Dithiocarbamates
Thiram
Fungicide
(CH
3
)
2
N CS
S CNSN(CH
3
)
2
Carboxylicacid
derivatives
2,4-D
Herbicide
Cl
Cl
CONH
2
COOH
Substitutedureas
Diuron
Herbicide
O
NHCN(CH
3
)
2
Cl
Cl
Triazines
Simazine
Cl
Herbicide
C
N
N
C
2
H
5
NHC
CNHC
2
H
5
N
Pyrethroids
Cypermethrin
Insecticide
CN
CCl
2
CH
O
CH CH CH
O
O
C
CH
3
H
3
C
Neemproducts
Nimbidin
(Azadirachtin)
C
35
H
44
O
16
Insecticide
Others
Organometalics
Phenylmercury
acetate
Fungicide
Hg
OCO
CH
3
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