Spider Web
A newsletter about IPM training in Asia
November 2001 - Pages 1 2 3 4 5 6 7 8 9 10 11 12
Table 1 Pesticide Classification by hazard group
WHO Hazard Levels
# / % of farmers using
Trade (common name)
Ia (extremely hazardous)
25/100%
Folidol (methyl parathion)
Ib (highly hazardous)
15/60%
Monitor (methamidophos)
II (moderately hazardous)
* Only one
1/4%
Thiodan (endosulfan)
* Two
Furadan (carbofuran)
* Thee
5/20%
Gramoxone (paraquat)
* All four
4/20%
Decis (deltamethrin)
III (slightly hazardous)
3/12%
Malate (malathion)
IV (unlikely if used safely)
Delfin (BT)
Table 2 Pesticide Classification by Chemical Family
Chemical family
# / % of farmers
Organophosphates (Op)
* All three
Carbamates (C )
12/48%
Organochlorines (Oc)
Pyrethroids (Py)
Table 3. Amount Of Pesticide Solution Sprayed By Farmers
Average Farmer
1.crop 2.crop
a.
Tank size lt.
b.
tanks /session
c.
sessions
d.
# weeks per season
e.
session/season (c*d)
f.
seasons per year
Days per year exposed
(e*f)
Liters exposure per year
a*b*e*f
Last year
rice
15
10
4
2
8
1200
beans
5
3
12
36
134
10800
Total
142
12000
0
6
450
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