21. Type of Toxic Agrochemical
Stomach Poison
Works on insect with chewing type
mouth
Damage Digestive system
E.g. Quinalphos
Systemic Poison
Works on Sap sucking Insect
Adsorbed on plant leaf surface,
move through vascular system
E.g. Acephate,
Phosphamide,Hexaconazole
Contact Poison
Works on Sap sucking Insect
Works when come in contact with
body of Insect E.g. DDT
23. Solution making of Agrochemical
Use concentration?
1 ppm(per part Million)=0.001 % ,Generally 1o-20 ppm=0.1-0.2%(w/w,v/v,w/v)=1-2 ml or gm/L fungicide,
Insecticide ,pesticide is used
c1v1=c2v2 is useful but not accurate for researches as density of two mixing liquids are different!
39. How to choose?
For nonedibles
Spray on Flowers
For Edibles
Spray on vegies & Fruits
40. Aren’t they same?
DICARBOXYLIC ACID
all Pests affect plants
Includes harmful insect, fungus, worms
DICHLOROVOS 76% EC
All Insects aren’t harmful to plants
Less cover area
47. “Agrochemicals are gift of science
,when used carefully uplifts
Agriculture production,
but when haphazardly used ,they are
like seed of destruction”
48. I Thank You…!
ANY QUESTION……….?
-SHAURAV SHARMA,2NDSEM FOA, A F U
2020-06-07